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2023 Year in Review: Taste

2023 Year in Review: Taste

You may have seen pastry chef Eunji Lee and chef and husband Matthieu Lobry’s New York Flatiron District Lysée Bakery’s most famous creation in your feed before: an adorably realized corn mousse dessert meticulously piped to resemble the husked vegetable in its entirety. The boutique patisserie’s reputation for high-quality and visually stimulating pastries combines Lee’s multiple influences as a Korean-French-New Yorker into a menu of edible art that feeds the eyes as it satiates the taste buds.

Australian biomaterials company Great Wrap’s alternative to cling film is made using discarded potato skins and the starch from cassava root. The alternative food wrap keeps food from spoiling just like traditional plastic wrap, but then biodegrades once discarded in as little as 180 days once added to the compost, making it a promising development in the realm of environmentally-friendly food preservation that we hope we all come to cling onto.

Cocktails side by side with Nasturtium flower.

TJ Girard spotlights an easy to grow and common garden plant with distinctively cheerful flowers that are also completely edible. With its peppery and slightly spicy flavor, the leaves and flowers make for a surprising savory cocktail ingredient. Check out TJ’s enticing twist on the Dirty Martini and get ready to be the toast of the town at your next gathering.

1st Place Food Stylist Award photo winner of a tablescape of cakes and other colorful desserts

A banquet of color and texture were (photographically) served across The Pink Lady® Food Photographer of the Year awards again. The annual celebration of the art of food photography and film once again captivated audiences, with winners awarded during a ceremony held at BAFTA London on May 16th. Check out the online gallery showcasing categories ranging from “Food for Celebration,” food photography taken with phone cameras, to images capturing the “Politics of Food.”

Waste not, want not. That’s the ethos behind PEELSPHERE®, a company that transforms banana peels and other fruit and vegetable waste into a durable and versatile leather-like material that offers an excellent alternative to traditional plastics.

Doce Mezcal bottle and drinking glass staged against burgundy background with abstract ceramic shapes

TJ Girard speaks with Gabriela Lawrence, Co-Founder and Chief Communications Officer of Oaxacan mezcal brand Doce Trecenas about how the mindfully made Oaxacan mezcal brand utilized a bold and contemporary color palette with modern typography across their packaging. The goal: to connect with conscious consumers seeking mindful choices as clear in values as the spirit itself.

Person's hand holding minimalist salt and pepper shaker over sliced tomatoes

They say variety is the spice of life, which makes German designer Jonas Finkeldei’s Stui dual spice shaker a culinary tool without compromise, seamlessly integrating a dual chamber salt and pepper shaker wrapped in an all-in-one minimalist, oak and beech design.

Yarn made to look like ground beef being knitted, spelling out MEAT

Design Museum Holon’s most recent show FOOD just concluded last month, but you can enjoy some of the artistic highlights exploring the intricate thought-provoking, and seductive relationship between humans and what we eat, whether it evokes desire or repulsion.

Large industrial space turned into modern culinary space, furnished with large metal table and stools, and tiered metal sinks as a centerpiece.

A towering brutalist and experimentatal installation provided the perfect backdrop to unveil Dirty Dishes, a limited series of irreverent tableware in a minimalist installation and pop-up showcasing the plant based contemporary Thai gastronomy of Michelin-starred Chef Dalad Kambhu, the immersive gastronomic creation between studio WE ARE ONA, and Crosby Studios.

Check out the rest of Design Milk’s end of the year coverage here!

Gregory Han is a Senior Editor at Design Milk. A Los Angeles native with a profound love and curiosity for design, hiking, tide pools, and road trips, a selection of his adventures and musings can be found at gregoryhan.com.

The Gray Market: Our art market soothsayer looks back on his 2023 predictions

The Gray Market: Our art market soothsayer looks back on his 2023 predictions

Longtime readers of this column know that when the next year starts peeking over the horizon, it’s time for me to uncap my red pen and grade the art market predictions I made at the start of this one.

With eight prognostications spanning commercial galleries, auction houses, art fairs and more, we’ve got a lot of ground to cover in this edition—and with very little in the trade having gone the way most professionals hoped, it feels like a particularly important time for a pundit like me to be accountable.

So let’s get right into the review, shall we?

1. One or more high-end galleries will build out a department specialising in licensing and branded merchandise.

On review: Half right.

One reason I keep making and reviewing art market predictions is that sometimes I find out the industry is one step ahead of me. Case in point: none of Gagosian, Hauser & Wirth and White Cube had a dedicated licensing professional on staff as of my writing, according to spokespeople for each dealer, and an inquiry to David Zwirner went unanswered by publication time.

Pace Gallery, however, does have one—and has had him in the role since January 2020.

Vincent Wilcke, Pace’s senior researcher and permissions manager, “handles all licensing for Pace artists, including commercial”, a gallery spokesperson says. “He primarily deals with TV/ film and commercial books licensing, as that is what the bulk of our artists have requests for.”

So, I was right to think that a major gallery would conclude this area of the business had grown important (and lucrative) enough to hire a specialist to manage, but I was wrong to think that it would take until this year. As a result, the committee has decided to award me one half-point for this prediction. (Full disclosure: The committee is me. No one ever said this process was perfect!)

2. Auction sales of fine art in China and the UK will both plummet at least 5% year over year from 1 January to 1 December.

On review: Correct.

If you needed more proof that 2023 was a bummer for practically everyone in the art trade, consider this: according to data from ArtTactic, fine art sales at Christie’s, Sotheby’s and Phillips in London declined from about $1.41bn in 2022 to $1.14bn this year—a decrease of 18.8% by value.

In China, meanwhile, fine art sales dwindled from $921.7m in 2022 to $847.8m in 2023—a shrinkage of 8%—across the Hong Kong, Beijing and Shanghai salerooms of Christie’s, Sotheby’s, Phillips, China Guardian and Poly Auction.

3. AGP (the consortium of Acquavella, Gagosian and Pace) will outcompete the auction houses for at least one collection of note.

On review: Dead wrong.

I missed the mark on this prediction, but I can’t fault the process that led me to make it.

A large number of works with estimates of $10m or more hammered at or below their targets at auction in 2022—that is, when they managed to sell at all—and much the same held true at this lofty price level in 2023 (including during offerings of major single-owner collections).

In fact, the fears about the market’s wobbliness proved to be even more severe than I anticipated last December. Christie’s, for instance, estimates that its global auction sales of art and luxury goods will have plummeted nearly 31% by year’s end, from $7.2bn in 2022 to about $5.0bn in 2023. Private sales of the same categories, in contrast, were up about 5% year-on-year, to $1.2bn.

Arguably the most coveted private collection to come up for sale in 2023, that of the late Whitney Museum patron Emily Fisher Landau, was consigned to Sotheby’s and sold during the marquee autumn sales Courtesy Sotheby’s

In theory, this scenario went a long way toward levelling the playing field between the auction houses’ private sales departments and the combined might of these three A-list commercial galleries. In practice, however, no collectors or estate executors felt compelled enough by the new topography of the market to follow the path of the Donald Marron collection. C’est la vie. Which leads us to…

4. Fiac will permanently shut down.

On review: All signs say oui.

I should state that I cannot officially confirm Fiac is done and dusted. RX France, the fair’s organiser, did not reply to my email enquiring about Fiac’s status heading into the new year. But the facts as we know them today make it hard to come to any other conclusion.

After Art Basel displaced Fiac from its longtime October slot at the Grand Palais in January 2022, RX France sabre-rattled about suing the Réunion des Musées Nationaux-Grand Palais (RMN-GP), the entity that manages tenancy at the Grand Palais and Grand Palais Éphémère, and vowed its homegrown Parisian fair would continue.

Yet no lawsuit has materialised to date, and RX France never hired a dedicated director for Fiac after the ouster. Instead, the company assigned Florence Bourgeois, the director of its other domestic expo, Paris Photo, the ostensible responsibility of managing both events.

Although Bourgeois stated in an October 2022 interview that the company was “reflecting on different ways to bring [Fiac] back to life”, there has been no sign of movement on the operating table in the succeeding 14 months. In fact, searching for art events in Paris on RX Global’s “events finder” tool as of mid-December 2023 returned only one result: Paris Photo.

Visitors during the VIP preview of the 2023 edition of the Paris+ by Art Basel fair Courtesy of Paris+ par Art Basel

Meanwhile, Paris+ par Art Basel has earned rave reviews in its first two years at its temporary venue, with a major scale-up looming when the fair transitions to the freshly renovated Grand Palais for its third edition in 2024. The city’s simultaneous satellite fairs, including Paris Internationale, Asia Now and Offscreen, also leave little breathing room for an insurgent Fiac to return during Paris’s premier art week. Nor do I have any confidence that Fiac would attract a sustainable level of demand from either dealers or collectors at another point in the annual calendar.

In short, after Fiac’s second consecutive year of dormancy, the most generous reading is that it has become a zombie fair: maybe not officially dead, but certainly not genuinely alive, either. Under the circumstances, that seems like enough evidence to put a checkmark on this prediction.

5. From January through June, total auction sales of works by ultra-contemporary artists (born in 1975 or later) will decline year-over-year for the first time since 2019.

On review: Yessir.

Per data from ArtTactic, in the first half of this year, lots by ultra-contemporary artists amassed $151.9m at Christie’s, Sotheby’s and Phillips’s salerooms in London, New York, Hong Kong, Paris, Milan, Shanghai and Singapore combined. This represents a drop of nearly one-third from the equivalent period in 2022, when works by artists in this age bracket brought $221.2m across the same venues.

One caveat bears mentioning: Although the dollar value of such sales significantly declined year-on-year, the auction houses actually sold 21.4% more ultra-contemporary lots by volume from January through June of this year (1,332) than during the same period a year earlier (1,097). So, the bidding wars didn’t materialise at the same rate, but demand for the youngsters remains healthier than the typical talking points about a “retreat to quality” would suggest.

6. Christie’s, Sotheby’s and Phillips will generate a combined minimum of $1.5m in primary-market sales (excluding NFTs).

On review: Accurate.

Even though I hit the bullseye here, the arrow didn’t travel the path I expected. Christie’s did not respond to my inquiry about primary-market sales. Sotheby’s, whose Artist’s Choice initiative saw the house partner with ascendant living artists and their dealers to auction off fresh-from-the-studio works with a charitable component in 2022, declined to provide data as well.

Phillips, however, delivered more than $4m in primary-market sales this year, according to an auction house spokesperson. The earnings came from a combination of six private selling exhibitions and five entries on its nascent DropShop platform, where Phillips offers one newly commissioned limited-edition print or sculptural multiple by a different artist every month.

So far, Dropshop has featured contributions from reliable draws including Kehinde Wiley, the estate of Jean-Michel Basquiat and the in-demand ultra-contemporary artist Emily Mae Smith. In contrast, the only artists to receive solo selling shows from Phillips this year were LA-based Brett Crawford, whose street art-adjacent style has developed a major following in East Asia, and Sassan Behnam-Bakhtiar, a French-Iranian abstract painter whose CV largely consists of exhibitions at auction houses.

The remaining private selling exhibitions at Phillips in 2023 were all group affairs. It just goes to show you that the best business is not always done with the most established talent.

(One note for the detail-specific: although Damien Hirst held a show of 102 new paintings at Phillips in London this summer, all transactions were carried out through HENI Primary, meaning they do not factor into the Phillips data.)

7. Climate protesters will damage one or more institutional works badly enough to require multi-day conservation—or worse.

On review: Sadly, correct.

On 6 November 2023, two members of Just Stop Oil, an activist group seeking to pressure the UK government into ending its licensing of new fossil fuel projects, entered London’s National Gallery and smashed hammers into the glass protecting Diego Velázquez’s The Toilet of Venus (1647-51). The institution removed the work, widely known as “The Rokeby Venus”, from view for nearly a month following the incident; it returned on 1 December “after conservation treatment to minor damage sustained to the painting surface, and the fitting of new glazing”, according to a press statement from the National Gallery.

Climate protesters attack The Toilet of Venus (1647-51), also known as “The Rokeby Venus”, by Diego Velázquez, at London’s National Gallery on 6 November 2023 Photo: Kristian Buus/In Pictures via Getty Images

I would love to tell you the withering backlash against this latest provocation will compel climate action groups to re-evaluate their misguided campaign of vandalising great works of art. But I doubt it, even though this is clearly a losing issue for the protesters—less because the average person believes art is sacrosanct and more because almost no one understands the conceptual link the protesters are trying to hammer home.

8. AI image generators will become the subject of a class action lawsuit, a formal inquiry by lawmakers or both.

On review: True.

No prediction I’ve ever made has been validated faster than this one.

On 13 January 2023, a trio of US-based artists and illustrators—Sarah Andersen, Kelly McKernan and Karla Ortiz—filed a class action lawsuit in the Northern District of California against three artificial intelligence (AI) companies. The complaint accused Midjourney, DeviantArt and Stability AI (along with its UK affiliate) of copyright infringement via the unauthorised use of the plaintiffs’ works in the gargantuan databases of images used to “train” their algorithmic image generators (Midjourney, DreamUp and Stable Diffusion, respectively). 

The lawsuit has travelled a winding road in the months since. On 30 October, a federal judge dismissed much of the original complaint, primarily on two grounds: first, that only one of the three plaintiffs had previously registered their works with the US Copyright Office, and second, that the lawsuit failed to adequately explain how the AI companies had used the artists’ imagery in their software and violated their rights in the process.

But an amended complaint filed in November added seven plaintiffs, one defendant (Runway AI, which contributed to the development of Stable Diffusion 1.5) and hundreds of pages of exhibits that aim to fill in the blanks cited in the judge’s partial dismissal the month before.

So, the winner of the legal dispute is still in question. The legitimacy of this prediction, however, is not.

Overall, that leaves me with the best score I’ve rung up in nearly a decade of doing this exercise—a fittingly counter-intuitive result for an expectation-upending year.

Final score: 6.5 Correct, 1.5 Incorrect.

  • Watch this space—or pick up a copy of our January issue—to see my predictions for the art market in 2024.

In Paco Pomet’s ‘Celestial,’ the Sun and Moon Cycle Through Satirical and Outlandish Situations

In Paco Pomet’s ‘Celestial,’ the Sun and Moon Cycle Through Satirical and Outlandish Situations

“Encounter.” All images © Paco Pomet, shared with permission

A review of Paco Pomet’s paintings from the last few years uncovers an unwavering fascination with the sun and moon. Brilliant glowing orbs appear in the distance and illuminate otherwise gray scenes, while tiny, cratered characters with cartoonish legs and arms wander into homes and hang out on rooftops.

This recurring theme culminates in a new limited-edition monograph featuring 29 paintings created from 2017 to 2022. Aptly titled Celestial, the book evidences Pomet’s enduring satirical and absurdist impulses. In “Encounter,” the moon floats with two businessmen on a makeshift raft, while “On the Road” depicts a vintage car traveling toward a United States-shaped sun on the horizon. The artist has shared previously that he believes human pursuits—and failures—are cyclical, making the sun and moon fitting metaphors for modern struggles, whether in the case of unchecked capitalism and environmental destruction or seemingly endless moral quandaries.

“Celestial bodies and stars have fascinated me since I can remember,” the artist says. “The sun and the moon are an endless source that throw very strong and mysterious statements for us: time, space, duration, darkness, light, beginning, finalisation. Their presence, and the power they have to convey feelings, has no boundaries.”

Celestial is currently available in Pomet’s shop, along with several prints. Find more of his work on Instagram.

 

A black and white painting of a nurse in a medical room with a sun just above the horizon on the patient table

“Melancholy Surgery Unit”

a blue painting of a cabin with a man propping a ladder against its roof. a tiny moon with legs and arms sits on the roof while the sun rises in the distance

“After Hours”

a black and white painting of a sterile room. on the table, a man and a dog paddle in a small canoe. a sun illuminates a sink

“La Llegada”

a blue painting of a log cabin in the woods. a tiny moon character opens the door to walk in with the light from the sun emerging from the doorway

“Eclipse”

a vintage car drives down the road toward a united-states shaped sun on the horizon

“On the Road”

a black and white painting of people in bed in a hospital with a bright yellow sun in the doorway in the distance

“An Ending”

a book cover with a cartoon style moon sitting on a snowy mountain. Paco Pomet Celestial is written at the top

Do stories and artists like this matter to you? Become a Colossal Member today and support independent arts publishing for as little as $5 per month. The article In Paco Pomet’s ‘Celestial,’ the Sun and Moon Cycle Through Satirical and Outlandish Situations appeared first on Colossal.

Tips for Photographing Local Models While Traveling

Tips for Photographing Local Models While Traveling

Traveling and photography are a perfect match. It’s so fun to photograph in a new place. Yet, for portrait photographers, locating models while abroad can be a challenge. There’s nothing more disheartening than finding yourself in an incredible place with no one to photograph. Here are some tips for finding models while you travel!

Barcelona is an insanely beautiful city celebrated for its stunning coastal views and exceptional architecture. It’s a unique blend of antiquity and contemporary urban charm, offering a perfect balance between city life and vacation vibes, with the beach just a stone’s throw away. So, it was very important to me that I capture some portraits while I was there.

During my trip, I was able to photograph several amazing models in this dreamy city, and it made my trip that much more amazing. Photographing local models brought a level of creativity, authenticity, and friendship to my trip that I hadn’t anticipated. I highly recommend finding local models to work with whenever you travel. 

Here are effective ways to make that happen:

1. Utilize Instagram

Explore popular model hashtags for whatever city you happen to be in. I used hashtags like #BarcelonaModel, #BarcelonaPhotographer, and #BarcelonaFotografo to discover models in the area. If you have a substantial Instagram following, announce in your stories that you’re seeking models in a specific city. Encourage interested individuals to DM you with photos and a brief introduction.

2. Leverage Online Modeling Platforms

Platforms like Model Mayhem are valuable for finding models in different cities or countries. Create a profile showcasing your portfolio to establish credibility. Then, search for models and makeup artists in your desired location.

For a more professional approach, reach out to local modeling agencies via email. Explain the nature of your planned shoot and the type of model you are looking for. Agencies can assist in pairing you with the perfect model, considering your shoot requirements. Be aware that model fees vary based on factors like experience, shoot type, and demand.

During my Barcelona trip, I used Instagram and Model Mayhem. Browsing Barcelona-related hashtags led me to models whose profiles I scrutinized to ensure past modeling experience before reaching out via DM.

My approach involved introducing myself and expressing interest in collaborating for a specific shoot while sharing a link to my website. I also inquired about their rates or the possibility of a print exchange. Not everyone responded, so I definitely recommend reaching out to more people than you need. Here is an example message:

Hey! I’m ___(Name)___. I am going to be in ___(location)___ for the week and am looking for models to photograph for a ___(type of shoot)____ shoot. I love your look and think you’d be perfect for the shoot. Would you be interested in modeling? Here is a link to my website so you can explore my work. What is your rate? I’d also be happy to trade for prints if you prefer.

I also used Model Mayhem to specifically search for models in Barcelona. This website is pretty cool because it allows models to showcase their portfolio, so you can see a variety of past shoots they’ve done. It also makes it very clear what their rates are for different types of shoots and whether or not they are willing to trade for prints. The model I found on model Mayhem was amazing and even helped me find the perfect location for the shoot.

It is very important to remember that caution is crucial when photographing in another country with unfamiliar individuals. Consider bringing someone along for safety, or opt for public shoot locations to make sure everyone feels safe and comfortable.

Capturing images with models from other countries can be a really interesting experience, often accompanied by language barriers. While in Barcelona, I had the opportunity to photograph a recently relocated Russian model. Our communication mainly relied on broken Spanish due to our lack of a shared language—she didn’t speak English and I didn’t speak Russian. Surprisingly, this language challenge brought an intriguing layer to the shoot, highlighting how photography transcends language barriers. Despite our language differences, we had such an amazing time photographing together and produced some really great images.

Photographing local models during my trip to Barcelona was one of the highlights of my trip. I definitely recommend giving it a shot if you have a fun trip planned. 

If you have any other tips for finding models in different countries, drop them in the comments!!
 

A Mechanical Metal Jellyfish Kinetic Sculpture

A Mechanical Metal Jellyfish Kinetic Sculpture
This Metal Jellyfish Kinetic Sculpture is by mechanical artist Eli Yoo. The video appears to be an animation, but if the real deal does in fact move like that, I’m impressed. “Despite their apparent intricacy, the pieces are surprisingly minimalist. We use the bare minimum to replicate

Nothing Apparel’s Labcoat Wears Its 1970s IBM Factory Floor Inspiration Transparently

Nothing Apparel’s Labcoat Wears Its 1970s IBM Factory Floor Inspiration Transparently

Pardon the pun, but is there nothing British consumer electronics company Nothing won’t explore designing? Everything the minimalist mobile device, earbud, and shockingly affordable smartwatch maker designs revolves around the theme of transparency, and now we can include fashion amongst the brand’s efforts to create a whole lifestyle behind the concept of nothingness.

Designed in collaboration with Swedish consumer electronics cool kids brand, teenage engineering, Nothing Apparel’s wardrobe launches with a minimal collection of caps, backpacks, coats, tracksuits, and other fashionable expressions of Nothing’s founding design principle of transparency.

White semi-transparent labcoat designed by tech brand, Nothing, with zipper pockets and front. In left chest pocket can be seen an identification card and Nothing wireless earbuds in their charging case.

If Kendall Roy went full-on Silicon Valley, he might very well be caught wearing Nothing.

Nothing Apparel’s first foray into fashion arrives as a semi-transparent Labcoat joined alongside a matching Transparent Cap, each inspired by the clean room aesthetic of the 1970s-era IBM factory floor.

Young man with long hair wearing a white semi-transparent painter's cap covered in water droplets.

Woman with dark slicked back hair and a young man with long hair wearing a white semi-transparent painter's cap covered in water droplets standing together near old pieces of PC computer lab equipment.

The brand followed up the collection’s Dover Street Market, London preview with an official inaugural apparel drop earlier this month at the Nothing Store Soho and online, with additional pieces in the pipeline for a TBD 2024 launch.

Gregory Han is a Senior Editor at Design Milk. A Los Angeles native with a profound love and curiosity for design, hiking, tide pools, and road trips, a selection of his adventures and musings can be found at gregoryhan.com.

Shock wave photographed passing through a single cell with improved nanosecond imaging technology

Shock wave photographed passing through a single cell with improved nanosecond imaging technology
Science Advances (2023). DOI: 10.1126/sciadv.adj8608″>

Shock wave photographed passing through a single cell
Observation of underwater shock wave through a biological cell. (A and B) STAMP movies with nine frames and an interval of 1.5 ns showing the propagation of underwater shock waves with (B) and without (A) a HeLa cell. Scale bars, 10 μm. Credit: Science Advances (2023). DOI: 10.1126/sciadv.adj8608

A microscopic shock wave has been photographed passing through a single biological cell, thanks to a new photography technique. Nanosecond photography uses ultrafast electronic cameras to take images at the speed of a billionth of a second. However, image quality and exposure time are typically limited.

Now, a team led by researchers at the University of Tokyo has achieved superfine images taken over multiple timescales at high speed using a system they named spectrum circuit. Spectrum circuit bridges the gap between and conventional electronic cameras, enabling photography at ultrafast speeds with less blur and more accuracy. This technology has potential applications for science, medicine and industry.

Timing can be everything in photography and capturing images at high speed poses a particular challenge. But thanks to advances in , these days we can see the world like never before. Whether it’s the sweat on a racing cyclist’s brow, the focus in the eyes of a swooping falcon or, with this latest improvement in nanosecond photography, the movement of a shock wave passing through a microscopic single cell at high speed.

The paper is published in the journal Science Advances.

Laser ablation dynamics over multi-timescales. The propagation of shock wave (2.0 ns interval with nine frames) and plasma (an average of 25 ps interval with five frames) and the progress of laser processing. (1 ms interval) were captured. Credit: Science Advances (2023). DOI: 10.1126/sciadv.adj8608

“For the first time in history, as far as we know, we have directly observed the interaction between a biological cell and a shock wave, and experimentally demonstrated that the velocity of the shock wave propagating inside the cell is faster than the outside of the cell,” explained Takao Saiki, a doctoral student from the Department of Precision Engineering at the University of Tokyo.

“Furthermore, our approach has enabled us to demonstrate high-speed photography across a wide time range, which includes picosecond (one-trillionth of a second), nanosecond (one-billionth of a second) and millisecond (one-thousandth of a second) timescales.”

Capturing clear images of cells without affecting their structure or causing damage is very challenging. To safely take the images, the researchers developed a precision , a circuit that uses light instead of electricity, which they named spectrum circuit. With spectrum circuit they created nondamaging , which they set to emit at different timings. By combining this technology with an existing single-shot optical imaging technique called sequentially timed all-optical mapping , or STAMP, they were able to take series of images with higher definition and less blur than previously available.

The team used the same technology to look at the effects of on glass. Laser ablation is useful for precisely removing from a surface and is used in both industry and medicine. The researchers focused an ultrashort laser pulse just 35 femtoseconds long (one femtosecond is equal to one-quadrillionth of a second) onto a glass plate. Using the spectrum circuit, they observed the impact of the laser, the resulting shock waves, and the effect it had on the glass over picoseconds, nanoseconds and milliseconds.

  • Shock wave photographed passing through a single cell
    Images of laser ablation taken using the ultrawide time range, high-speed camera: Applying this new imaging technology, the researchers could see the propagating shock wave and plasma and the progress of laser processing over multi-timescales (about 10–100 picoseconds, about 1–10 nanoseconds, and about 1–100 milliseconds). Credit: 2023 Saiki et al./ CC BY NC
  • Shock wave photographed passing through a single cell
    Less than a second: Picoseconds are the typical rate used in ultrafast optical imaging, while high-speed electronic cameras can take images at the rates of millisecond and microsecond. The research team’s spectrum circuit system bridges the gap between these technologies, enabling us to see what happens in between these time frames. Credit: 2023 Nicola Burghall / CC BY

“We could see the interplay between different physical processes taking place over time, and how they took shape,” said Keiichi Nakagawa, an associate professor from the Department of Bioengineering and the Department of Precision Engineering at the University of Tokyo. “Our technology provides opportunities to reveal useful but unknown high-speed phenomena by enabling us to observe and analyze such ultrafast processes.

“Next, we are planning to use our imaging technique to visualize how cells interact with acoustic waves, like those used in ultrasound and shock wave therapy. By doing this, we aim to understand the primary physical processes that activate subsequent therapeutic effects in the human body.” The team also wants to use spectrum circuit to improve laser processing techniques, by identifying the physical parameters that would enable faster, more precise, more consistent and cost-effective manufacturing.

“We have always been fascinated by the power of visualization to understand complex phenomena. The chance to uncover and show parts of the world that were hidden before really drew us to this field,” said Nakagawa. “We expect to make broad contributions in various fields, from biomedicine to manufacturing, materials, the environment and energy.”

More information:
Takao Saiki et al, Single-shot optical imaging with spectrum circuit bridging timescales in high-speed photography, Science Advances (2023). DOI: 10.1126/sciadv.adj8608

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Shock wave photographed passing through a single cell with improved nanosecond imaging technology (2023, December 21)
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