I am very proud to highlight the recent work of our Glitta Rosalia Cheeran today which we just published on arXiv: arxiv.org/abs/2602.22845 🧵👇

I’m proud to serve on the Technical Program Committee for CLEO 2026. Join an international community of researchers, engineers, and innovators advancing the future of photonics. Where rigorous science meets real impact. Register Now invt.io/1bxb5bcba6x

Es wird immer klarer: Eine CDU ist keine Reformationspartei, sie ist Verwalter von schönen Zeiten in denen Deutschland ein Selbstläufer ist. Hinzu kommt eine visionslose SPD, die keine Perspektive für eine zunehmend automatisierte Wirtschaftswelt anbieten kann und personell eine Katastrophe ist.

At the European Parliament: ‼️Forbid ad-driven content-filter on social media‼️ Why?! Because it destroys our democracy and destabilizes our society. Strong and healthy democracies needs space for social- and self-correction. It needs a market place where everybody can talk to everybody.

German weather reports right now: +++ BREAKING +++ White cold stuff falls from heaven. Unprecedented!! Don’t slip. Stay home. 🫢

The most brain-like representations of visual neural networks are also the most universal ones, i.e., they are largely independent of a network’s architecture or training. Cool new work by Chen & Bonner in #ScienceAdvances! #neuroAI www.science.org/doi/10.1126/...

JOB ALERT! 📢 For the scientists who love science communication: we’re hiring at @kurzgesagt.org !🌍 Come join our team, the vibes are impeccable. ✍️ Scriptwriter (Remote) kurzgesagt.org/careers/scri... 🔍 Fact-Checker & Researcher (Munich/Berlin/Remote) kurzgesagt.org/careers/seni...

And the best poster award goes tooo…

I am thrilled to kick off the New Year with an announcement on a new Scientific Reports Collection on #Supercontinuum #Generation and #Applications! ❗️We are gladly receiving your submissions until August 18, 2026❗️ ➡️ Learn more & submit your manuscript: www.nature.com/collections/...

Merry Christmas Season from the Smart Photonics Research Group in Jena @leibnizipht.bsky.social This beautiful speckle Christmas sphere was measured by our Master student Yuze Wu. Would love to have one of those on my tree in real. 🎄

Giant finger or tiny chip. Let's see what computes better. Exciting times ahead. ✨🤩✨

“…Quantum computing, a field that we rather see as a variant of digital computing and do not further address…” [since this decade is over]. Bold but gold. 🥇

Just on my way back from the International School of Physical Computing in the beautiful city Erice (IT). A fantastic event organized by Birgit Stiller, Antonio Cala Lesina and Wolfram Pernice. We definitely forged some future there. Looking forward for the upcoming events. 🙏

An absolutely correct move. But how to stop the ego-parade in Silicon Valley?!

„Today, Germany is in urgent need of change. Instead it’s getting Mr. Merz: yesterday’s man, with yesterday’s ideas.“ www.nytimes.com/2025/03/04/o...

Found in the middle of rural Germany: „Peace is the masterpiece of reason.“ Immanuel Kant

The ancient German satire Magazine Simplicissimus with 1907th hot topic „The Russian Dragon“ („Der russische Drache“). Very up-to-Date again.

Time for new innovations. www.telegraph.co.uk/business/202...

Me every time I hear one of the large laundry machine business guys talking about being close to artificial general intelligence. Let’s face it: LLM scaling is over. Research is needed. Into new models and fundamentally new hardware approaches. The future is light. 💡

Just accepted: Programmable Liquid-core fibers. Our breakthrough of 10 years of technological development together with my friend and mentor Prof. Markus Schmidt at the @leibnizipht.bsky.social Stay tuned 🚀

Claude, GPT-5 and a german AI meet in a bar. The barkeeper asks „How is it going?“ Claude: Thinking for 5 min. “It’s such a complex question! I’m good. Thanks.” GPT-5: “Status: Operational. Query processing at 99.7% efficiency. Next.” German AI: I am not authorize to give you this information.

Proud to see this article printed in this months issue of @spektrum.de Many thanks to Ms Menne and the editorial team for this great work. 🙏 Danke für die Gelegenheit.

Geniuses of our time…

So quantum madness ends, one article after the other. www.quantamagazine.org/teenager-fin...

I love Yann LeCun’s vibes. 😅

Just playing a bit with image generators. Love this one. ✨ Living the future ✨

The Smarties are on the way from CLEO Munich. What a great event! It was a pleasure.

Yay!! Today, we celebrated the first original paper from our Smart Photonics Group @leibnizipht.bsky.social. What a great success! Special guests: Bruno Pessoa Chaves, Manal Arbati from XLIM Limoges, and Andrei Ermolaev from Femto-ST Besançon, France. It was a very exciting exchange.

Meet us at #CLEO #Munich 2025. We have a series of exciting research insights prepared for you. From dispersion-programmable fibers to fundamentally new concepts of brain-inspired optical information processing. We look forward to seeing you there. Let’s bring out the #intelligence of #light. 🚀

Why is one part of society torturing themselves to report as truly and trustworthy as possible, just for not being believed by another part of society that has no problem with telling lies every minute?! 2025. The future.

@zdfde.bsky.social Wo sind eure guten Nachrichten heute?!

The three-year-old sings for themself into a tube “everyone is stupid”. Who am I to judge. 🥸

There are very few things that are universally true, but this one belongs to it: Regardless of who you are, where you come from, or what you believe in, if you break basic human rights, you are lawless and should be prosecuted.

A decade-long problem finally solved. Well done. 👍

If we limit global warming to +1.5°C, more than half of non-polar glaciers can be saved. This is the finding of an international collaborative study that calculated the potential ice loss of more than 200,000 glaciers: ethz.ch/en/news-and-...

🤣

Here the Administration lays the groundwork for weaponization of scientific principles to justify rollback of science-based policy actions. This isn't just hypothetical, its what the first-term Trump Administration and members of Congress have done for years. www.science.org/doi/10.1126/...

Here we go! This year’s “exam” for my ~20 students visiting my #Optical #MachineLearning lecture at the Friedrich-Schiller-University #Jena. The game is on. 🚀

France 🇫🇷 is on the run for AI leadership in Europe 🇪🇺 Very impressive! www.perplexity.ai/page/mgx-tea...

Paper alert! I am happy to share our recent study on nonlinear photonic neural networks in Nanophotonics! We explore the impact of optical chaos on optical computing with fibers. doi.org/10.1515/nano...

Einfach nur krass wie sich der Raab direkt ins Bild geschoben hat als es die 12 Punkte gab. Als hätte er das Lied gesungen. Wie schrecklich anmaßend! #janprixollivision

@janboehm.bsky.social Kommt Jungs! Baller. Wahrscheinlich der beste Song für Deutschland beim #ESC seit Jahren. #janprixollivision

Bisher ist Hazel auf Platz 1. Kommt da nochwas? #janprixollivision

Why should anybody in the world earn 100 Mio€ per year and not redistribute 90% of it into education and low-income families to stabilize society and keep earning in the future? I don’t understand.

It’s official. I’m Europe fanboy now. 🇪🇺 There is no future in #nationalism, #fascism, nor #oligarchy. Only in #unity!

The world's richest man has joined a growing chorus of right-wing voices attacking Wikipedia as part of an intensifying campaign against free and open access information. Why do they hate it so much?

My twisted friend #h-index, what do you like to tell me?! How many papers I publish and cross-reference? How big my network of friends is? How many people work in my community?! This is not important to me. The #innovation #potential of a paper is. This should be our #metric. Let’s measure it!

Two of my signature papers of 2023 are among the top-10% of the most viewed papers of Wiley journals LPR and Advanced Science. Aren’t those the small things that keep us going?! 🙏☺️

I just showed a friend how to look up The Keeling Curve's 800k graph and saw the 430 plus PPM. Holy Crap! Thanks, Eliot! keelingcurve.ucsd.edu