John Dudley @johnmdudley Twitter profile

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John Dudley

3 months

Nonlinear physics demo in my office, linked to a class on mode-locked lasers. It takes about 60 seconds to really lock, but once it's there, it stays there! For more about the wonder of synchronisation, read and follow @stevenstrogatz

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John Dudley

@johnmdudley

4 years

Repeating one of my favourite productivity tips for new followers. A PowerPoint file (pptx) is actually a Zip file in disguise. If you simply change the .pptx file extension to .zip and unzip, you directly access all embedded media at their original size & resolution. See below!

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John Dudley

@johnmdudley

2 years

Updated my Nobel Prize timeline-category graph.

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John Dudley

@johnmdudley

7 years

@MuslimIQ @jonmbutterworth The orginal video is called Don't Be a Sucker! and the whole thing is here:

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John Dudley

@johnmdudley

3 months

Important when solving nonlinear equations! Your code choices are as much part of the map as the equations you are solving. The movies below show two different Lorenz attractors obtained with different numerical tolerance. This is how Lorenz discovered chaos in the first place!

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John Dudley

@johnmdudley

7 years

@jonmbutterworth @MuslimIQ Incredible that Trump has taken the US so far back that a 1947 video seems timely and necessary again ...

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John Dudley

@johnmdudley

2 years

Today seems the perfect time to retweet this historical photo from the early 1990s taken at a special symposium in honour of Claude Cohen Tannoudji. Albert Messiah, Alain Aspect, John Bell ...

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John Dudley

@johnmdudley

9 months

Watch just 1 minute of the first one and I guarantee you'll be hooked!

Dr Dan Jones

@Hookean1

9 months

Lectures on Quantum Theory by Hans Bethe. Amazing stuff 👏👏👏👏

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John Dudley

@johnmdudley

1 month

So while reading about the history of Van de Graaff generators, I learned that Donald Trump's uncle John Trump from MIT was one of the pioneers in the field ...

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John Dudley

@johnmdudley

3 years

To kick off the week, here is an updated (and long!) thread on the history of nonlinear optics. First a real surprise! The explicit use of the terminology “nonlinear optics” can be traced back to Erwin Schrödinger in 1942. Yes you read that right. Schrödinger himself!

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John Dudley

@johnmdudley

2 months

"According to Google Scholar, Berto published 871 studies between the 2018 and 2023 calendar years." 38 papers already published in 2024 i.e. one paper every 3.6 days ...

Retraction Watch

@RetractionWatch

2 months

Norway university committee recommends probe into the country’s most productive researcher.

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John Dudley

@johnmdudley

6 years

Amazing what you can do with @LEGO_Group and a laser. Near perfect circular fringes from a Michelson interferometer aligned by @mzelcoco

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John Dudley

@johnmdudley

3 months

I got it working with 4 metronomes, all in phase. Again it takes about a minute to get them synchronized. And for those who asked, I also tried with empty coke cans and it still works.

John Dudley

@johnmdudley

3 months

Nonlinear physics demo in my office, linked to a class on mode-locked lasers. It takes about 60 seconds to really lock, but once it's there, it stays there! For more about the wonder of synchronisation, read and follow @stevenstrogatz

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John Dudley

@johnmdudley

4 years

Thanks sincerely to the @OpticalSociety for this honour and to everyone who contributed over the years especially @GGoery and Stephane Coen (via @FredVanH ) And thanks as always to @fc_univ @INSIS_CNRS @CNRS_Centre_Est @Univ_BFC @FemtoSt

Optica

@OpticaWorldwide

4 years

Congrats to #OSAFellow @johnmdudley of @Univ_BFC - 2020 R.W. Wood Prize recipient for contributions in #optical science ranging from ultrafast optical pulse metrology to enriching knowledge of the physics of fiber supercontinuum generation. #OSAAwards

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John Dudley

@johnmdudley

7 months

Happy 2024 everyone! To celebrate, here is something for the lab. I had fun working with @SPIEtweets and Advanced Photonics to update the Nobel Prize timeline poster. Make printing this one of the first things to do this year!

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John Dudley

@johnmdudley

2 years

Et voila !!!

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John Dudley

@johnmdudley

3 years

2021 is 60 Years of Nonlinear Optics! 1961 saw the discovery of second harmonic generation, although proof of the second harmonic did not appear in the published paper, supposedly (apocryphally?) removed in publication as a speck of dust!

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John Dudley

@johnmdudley

4 years

Very happy to have had the chance to write about some light-related Nobel prizes for a Perspective in Advanced Photonics. There's a nice poster you can download as well! @SPIEtweets

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John Dudley

@johnmdudley

3 years

@Foone

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John Dudley

@johnmdudley

3 years

I was honored to speak at Moscow State University last week for the 60th anniversary of laser nonlinear optics. But in fact, the first nonlinear effects in optics were observed in the pre-laser era by Vavilov in Moscow in 1926! Here are some slides from my talk (thread).

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John Dudley

@johnmdudley

5 years

For all my friends who think that every physics @NobelPrize should be about optics, just look at what's used for exoplanet detection! @JossBlandHawtho @DidierQueloz @rachelpcwon @MeinzerNina @NatRevPhys @NatureComms @IDLofficial #everyonebehappy #IDL2020

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John Dudley

@johnmdudley

5 months

Sad news with the passing of optics pioneer Andy Weiner last week. His impact is everywhere, especially for inventing spectral domain pulseshaping. If you've ever used a "waveshaper" you've used his work! His bio on winning @Optica Townes medal is here

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John Dudley

@johnmdudley

24 days

Still looking through my photo archives. I might regret posting this but here is a picture of me as a first year Masters student in 1987! I love the pile of boxed up notes (I tried to keep every solution to problems I had solved) and that bookshelf-some absolute classics there!

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John Dudley

@johnmdudley

2 years

As we enter Nobel Prize season, time to retweet my plot of how physics prizes have been distributed between different areas. Yes I know "other" includes topics e.g. cond-mat that deserve their own category and I freely admit bias in promoting optics! Feel free to complain😀

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John Dudley

@johnmdudley

1 year

Watching caustics and waves through a diffraction grating! Optics is pretty nice ...

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John Dudley

@johnmdudley

3 years

If you're concerned about mental health in academia, this article from @Nature will resonate e.g. I love the work but we work every night, we read theses, we review, we sit on grant panels, all for free. I basically have two jobs (cc @ZJAyres icymi)

How burnout and imposter syndrome blight scientific careers

Nature - Most scientists love what they do, but job satisfaction levels hit a new low, Nature’s survey finds.

www.nature.com

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John Dudley

@johnmdudley

3 years

Unappreciated laser history. Although Townes developed the maser in 1953, he struggled with how to model noise in amplification. On sabbatical in 1956 he got on the right track after learning about studies of microbial population dynamics! Try to be interested in everything!

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John Dudley

@johnmdudley

2 years

I've been aligning these things for over 30 years but every time I see white light fringes I'm taken back to when I was a third year student, and the feeling of absolute elation is still the same.

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John Dudley

@johnmdudley

2 years

Monday interferometry, this time using the brilliant @LEGO_Group Michelson design from @ImlauLabs No white light fringes (yet!) but circular fringes are easy!

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John Dudley

@johnmdudley

3 years

While we celebrate #LightDay2021 tomorrow, let's take a moment to remember 5 giants of science whose support for the International Year of Light in 2015 was essential to its success and impact, which led directly to the annual International Day of Light. Thanks to them all.

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John Dudley

@johnmdudley

2 years

Little known story: if it wasn't for Alain Aspect, I might never have ended up in France. He gave an "avis favorable" for funding to support my trip to @fc_univ in 1998-1999! Here we are in 2015 where he is complaining that I stopped him going over time at the IYL2015 opening!

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John Dudley

@johnmdudley

10 months

Totally shameless annual Nobel name-dropping time! A paper with Ferenc Krauss written at the time when we all thought that femtoseconds were the most interesting things around, and a photo from a conference back in 2015 for the Year of Light.

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John Dudley

@johnmdudley

2 years

@ThomasVanRiet2 Story behind this posted on Quora.

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John Dudley

@johnmdudley

1 year

For any French PhD students looking to add to their course requirements (PIF) I am teaching 2 online courses this semester (in English). One on nonlinear science and one on science communication Enrolment in the usual way!

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John Dudley

@johnmdudley

5 years

Preparing my annual December Optics Outreach Lecture ... Just had fun with a roll of scotch tape making some nice modern art to illustrate birefringence and waveplates!

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John Dudley

@johnmdudley

4 years

2021 is the 30th birthday of Kerr lens self-mode-locking, kicking off the ultrafast revolution that has been central to 3 Nobel Prizes 1999, 2005, 2018. Here is the first paper from St Andrews and another a few months later from Bell Labs. @femtocg @DerryckReid @clara_saraceno

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John Dudley

@johnmdudley

4 years

And in my annual tweet to try to link every physics Nobel with lasers, here is a diagram from the official 2020 Nobel prize documentation😀 Who can't but love adaptive optics and speckle imaging? A nice example for the imaging experts @sylvaingigan @MilesPadgett @d_faccio

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John Dudley

@johnmdudley

4 years

Announcement. PhD position available to work on Deep Learning in Photonics. The topic is broad & could suit MSc or Ingenieur graduates in fields from photonics to applied mathematics & even computation. Programming skills are essential. Contact me for details.

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John Dudley

@johnmdudley

5 years

Today's "everyday optics" photo outside my office window #alwayscarryapolarizer #beautyinunderstanding

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John Dudley

@johnmdudley

3 years

For lovers of solitons & history, some slides from a talk I gave last week. The KdV soliton was the main result of Gustav de Vries's PhD thesis, but only after his supervisor Korteweg REJECTED his first submission! See Bastiaan Willink arXiv:0710.5227v1 [physics.hist-ph]

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John Dudley

@johnmdudley

9 years

James Clerk Maxwell born today! June 13 1831. Unified electricity & magnetism & changed physics forever @Light2015UK http://t.co/kaxGZ6raoQ

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John Dudley

@johnmdudley

5 years

Honoured & very grateful to @SPIEtweets & thanks for all the messages. But nothing is ever done alone and this is shared with @johnharveynz @DerryckReid @GGoery @SylvestreT @FredericDiasUCD @ChrisFINOT @Benj_Wetzel @MErkintalo @fc_univ @FemtoSt @INSIS_CNRS @Jacques_Bahi & more

Gregory Quarles

@DrGregQuarles

5 years

Congratulations to #OSAFellow @johnmdudley for receiving the SPIE Harold E Edgerton Award, which is “presented for outstanding contributions to #optical or #photonic techniques in the application and understanding of high speed physical phenomena.”

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John Dudley

@johnmdudley

4 years

Fascinating free to read commentary on the dimensionality (or lack of?) of the radian, and why physicists should perhaps worry about it more. @j_bertolotti @stevenstrogatz

A spectral unit

Nature Physics - Giacomo Prando summarizes the troubled history of the radian, a unit with the odd property of appearing and disappearing seemingly at will in dimensional formulas.

www.nature.com

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John Dudley

@johnmdudley

4 years

Don't know the original source of this so apologies to the creator. In case there are any physicists there who still haven't got the message, this should help!

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John Dudley

@johnmdudley

5 months

Okay - I am giving up with AI images. Just asked for a rainbow schematic and it gave me this beauty.

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John Dudley

@johnmdudley

3 years

I posted my first paper to a journal in an envelope with a stamp.

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John Dudley

@johnmdudley

1 month

Getting some outreach demos ready. First up, everybody's favourite Michelson interferometer. Inset shows fringes with lights off to highlight the contrast. Have never managed to see white light fringes, but not exactly wavelength-scale precision with the translation stage.

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John Dudley

@johnmdudley

1 year

You can do some really nice optics with a pinhole and a telephone flashlight. On the left is the phone with the flashlight covered by a pinhole. On the right is exactly the same thing but with a paper screen held a few cm away. What is going on here?

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John Dudley

@johnmdudley

4 years

Anyone who uses quantum mechanics for anything must read this amazing 1976 discussion of its history by Felix Bloch in @PhysicsToday Some amazing stories! It's free to download with registration

Heisenberg and the early days of quantum mechanics

Recollections of the days, 50 years ago, when a handful of students in the “entirely useless” field of physics heard of a strange new mechanics invented by Maur

pubs.aip.org

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John Dudley

@johnmdudley

1 year

Supercontinuum in the Paris Metro !!

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John Dudley

@johnmdudley

3 months

Max Planck's birthday today is a good time to repost Henk Kubbinga's @EuroPhysicsNews tribute to Max Planck describing how understanding blackbody radiation was linked to the practical question of lighting Berlin! QM has been practical since its origins!

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John Dudley

@johnmdudley

1 year

Truly honoured to be able to write about 50 years of fiber solitons with @GGoery @ChrisFINOT & Roy Taylor in May's @OPNmagazine We couldn't mention all the many pioneers by name and please add comments below! Open here:

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John Dudley

@johnmdudley

4 years

IgNobel Prize in "Medical Education" goes to a selection of world leaders. All prizes here! @

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John Dudley

@johnmdudley

2 years

@chrissteinplays You can listen to the pulsar here!

Jodrell Bank

@jodrellbank

5 years

40 years ago today, @joydivision 's Unknown Pleasures was released. Its cover featured signals from the first pulsar CP1919. To mark the anniversary, we made this observation of the pulsar earlier today

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John Dudley

@johnmdudley

1 year

Great advice for PhD students. You don't need to know everything to get started! You pick thing up!

Hamza M.

@QFTheorist

1 year

Steven Weinberg's advice for young scientists: “You don’t need to know everything” “Jump in the way” “Roll with it” Steven Weinberg (1933–2021) was an American theoretical physicist and Nobel laureate in physics for his contributions with Abdus Salam and Sheldon Glashow.

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John Dudley

@johnmdudley

5 years

Also in the first issue of the new magazine Photonics Focus from @SPIEtweets is a wonderful article from @ProfArmani on 10 steps to write a paper. Direct download link to the whole issue here:

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John Dudley

@johnmdudley

10 months

Yes I know the categories are imperfect and overlap but anyway, as of the evening of 3/10/2023, here is the updated physics-related Nobel prize Timeline Chart

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John Dudley

@johnmdudley

4 years

Pro tip for all those who like to or have to write in LaTeX. References pulled randomly off web databases often have many errors. But if you use @JabRef_org you can enter a DOI and it will go online and automatically find a correct bibtex entry for you!

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John Dudley

@johnmdudley

4 years

Google Scholar has just published its own version of Journal Impact Factor rankings - play with the categories and subcategories to see how it gives VERY different results from Clarivate's Journal Citation Reports. @AWHarzing @dailypeasant @rachelpcwon

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John Dudley

@johnmdudley

2 years

Just a short 🧵 on recent work dipping our toes into nonlinear model discovery with SINDy, the field pioneered by @eigensteve , Nathan Kutz et al. Ours is a very minor increment but we hope to kickstart a lot more interest in nonlinear optics.

Data-driven model discovery of ideal four-wave mixing in nonlinear fibre optics

Scientific Reports - Data-driven model discovery of ideal four-wave mixing in nonlinear fibre optics

www.nature.com

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John Dudley

@johnmdudley

3 years

Happy St Patrick's Day everyone! Did you know that the bubble cascade in Guinness is caused by a gravity current instability? See this 2019 paper in @SciReports There are of course other instabilities that develop if you drink too much of it!

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John Dudley

@johnmdudley

3 months

A second demo used in the class on mode-locked lasers was the pendulum wave, where oscillators of different frequencies (and constant frequency difference) show overall periodic behaviour.

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John Dudley

@johnmdudley

5 years

Very encouraging email just received. A company has just offered to publish my PhD thesis.Tempted to send them my floppy disks with Word 3 and MacDraw Pro files ... not to mention the original oscilloscope photos.

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John Dudley

@johnmdudley

3 years

This is incredible! Jun Ye and Hidetoshi Katori win the Breakthrough Prize in Fundamental Physics for work on the atomic clock!! Fantastic news!! @OSAPublishing @SPIEtweets @NIST @IEEEPhotonics

Jun Ye wins Breakthrough Prize in Fundamental Physics

Ye was cited for his work in developing atomic clocks that are so precise that they would neither gain nor lose one second in roughly 15 billion years.

www.colorado.edu

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John Dudley

@johnmdudley

5 years

As promised a thread (17 tweets) with a selection of photos from the Live Science lecture last night. 200 students, 25+ demos & a team of 7 to setup. Thanks to @CocoLapre for the photos & a full list of thanks to everyone is at the end. First up dispersion & rainbows.

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John Dudley

@johnmdudley

4 years

I have a joke about physical optics but it's quite polarising.

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John Dudley

@johnmdudley

3 years

Breaking news! A new United Nations International Year has just been announced for 2022 that might well interest optics, especially those who like doing things with optical fibre! @OpticalSociety @SPIEtweets @IEEEPhotonics @europeanoptics @EuroPhysSoc

2022 WILL be the International Year of Glass

The United Nations has given approval to a year of glass in 2022.

www.glass-international.com

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John Dudley

@johnmdudley

2 years

Always very impressed by the low-tech simple robust and fast French voting system! One name, one envelope, a transparent box and a signature. Also gives me the chance to go back to the local primary school which always brings back nice memories!

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John Dudley

@johnmdudley

2 years

Physics fashion as it should be with @OpticaWorldwide

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John Dudley

@johnmdudley

1 year

This year is the 600th birthday of the University of Franche-Comté, the 10th university created in France in 1423. For @IDLofficial I gave a talk on optics history here since the science faculty was created in 1845. First batch of tweets follow; text in English, slides in French.

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John Dudley

@johnmdudley

1 year

Job Announcement just appeared over on LinkedIn. Up to 3 permanent positions in optics/photonics at the Institut FEMTO-ST, starting September 2024. This is a preliminary announcement before the official campaign opens. Make contact early! Details here:

John Dudley on LinkedIn: Optics presentation

Announcing permanent positions at the FEMTO-ST Institute and the University of Franche-Comté, starting September 2024 The FEMTO-ST Institute and the…

www.linkedin.com

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John Dudley

@johnmdudley

6 years

Lecture demonstrations for a Saturday morning. First - a rainbow. Very simple with a projector, card and a flask. Methyl Cinnimate is better than water for doing this as it has a higher refractive index.

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John Dudley

@johnmdudley

3 years

The detail in the @GoogleDoodles celebrating Charles Kao and fibre optics is fantastic! Not only does it show internal reflection in the fibre (thanks @libroraptor ) but the bit sequence being transmitted when converted to ASCII spells out K - A - O

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John Dudley

@johnmdudley

4 years

Really looking forward to this next week and trying to ensure at least half the time is Q&A ; this is an ideal topic for great discussion!

SPIE

@SPIEtweets

4 years

Effectively communicating science to different audiences is essential for all researchers. Join #SPIE and John Dudley @johnmdudley @Univ_BFC for our free live chat 'Science Communication for Early Career Researchers' on October 28. Register now! #SciComm

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John Dudley

@johnmdudley

5 years

Next year 2020 is the 60th anniversary of the first operation of the laser by Maiman on May 16. This date is now the International Day of Light. Follow @IDLofficial for news on how you can celebrate #IDL2020 and #seethelight @OpticalSociety @SPIEtweets @IEEEPhotonics @APSphysics

Augusto Beléndez

@aubeva

5 years

15 de diciembre de 1958: Schawlow y Townes publican “Infrared and Optical Masers”

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John Dudley

@johnmdudley

2 years

So here's the full picture of the Michelson with white light fringes in all their glory! Every office needs one of these!

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John Dudley

@johnmdudley

2 years

In case you missed it, @SPIEtweets made a great poster for the 60th anniversary of the laser available here: Turns out next year 2023 has two great anniversaries: 70 years since the maser, and 60 years of quantum optics! Plan for @IDLofficial 2023 now!

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John Dudley

@johnmdudley

5 years

Laser oscillation was first seen in 1960, and 2020 is its 60th birthday. At the halfway point in 1990 I was doing my PhD, likely one of the last on mode-locked gas lasers which soon became replaced by solid-state systems. Here is photo of my PhD experiment 1/7

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John Dudley

@johnmdudley

5 years

Wonderful to share this honour with such a fantastic group of photonics friends. Thanks @SPIEtweets and as always greatest thanks to students & colleagues present and past everywhere and @fc_univ @FemtoSt @INSIS_CNRS @CNRS_Centre_Est and more.

SPIE

@SPIEtweets

5 years

Congratulations to the new #SPIE Fellows of 2020! This list of notable inductees includes @rachelpcwon , @SarahBohndiek , @johnmdudley , @moofaca , @sweeneystephen , and 67 more Members! #optics #photonics

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John Dudley

@johnmdudley

9 months

Feynman talking about light ... replace what he says about "reflection" with "scattering" and it's still the same. See and the video clip here:

Birefringent

@pay__vand

9 months

Apparently I have started a debate in our group on the representation of ballistic photons. So according to you, do photons have trajectories? (Figure from Nat. Phys. 18, 994–1007 (2022))

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John Dudley

@johnmdudley

5 years

Very pleased and honoured to share the @SPIEtweets Edgerton Prize with students past and present and colleagues and friends! Thanks @ @GGoery @CarolineAmiot1 @CocoLapre @SpSolveig @Amarbong1 @Benj_Wetzel @MErkintalo @FredVanH @SylvestreT @AstonPhotonics

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John Dudley

@johnmdudley

9 years

Shocking.Scientists can't nominate for Nobel Peace Prize but theologians can! http://t.co/ABL7qijHg2 @RichardDawkins http://t.co/yJRgKKpIAo

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John Dudley

@johnmdudley

3 years

Dear Mathematics and Physics Twitter and @stevenstrogatz @numberphile @DynamicsSIAM Have you seen this paper on the "Ramanujan Machine"? On arxiv and in @nature today!

Generating conjectures on fundamental constants with the Ramanujan Machine

Nature - An approach called the Ramanujan Machine demonstrates the use of algorithms to find mathematical conjectures in the form of formulas of fundamental constants, some of which remain unproved.

www.nature.com

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John Dudley

@johnmdudley

2 years

The Butterfly effect of Edward Lorenz seems to have been first given that name in writing in 1972. It's worth reading what he said about it himself! A slide from one of my courses below. Maybe this will help a certain 12 year old @skdh ?

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John Dudley

@johnmdudley

2 years

Fantastic to finally meet @Yann_Bristol and @MAChernysheva in person. Great atmosphere and attendance at Photonics Europe.

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John Dudley

@johnmdudley

3 years

Absolutely fantastic to see Charles Kao on the Google Doodle this morning !!!! A video from 1966 of him in the lab is here: His work was part of the arguments that persuaded the UN General Assembly to declare the International Year of Light in 2015!

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John Dudley

@johnmdudley

3 months

Just popped outside for a minute and look what I found #PintofScience #GoodOmen

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John Dudley

@johnmdudley

3 years

Here is the oldest email that I can find on my PC from Nov 1993 (I keep an old version of Eudora running) And the topic? Manuscript formatting guidelines to avoid issues with papers being bounced!!! Nothing changes!

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John Dudley

@johnmdudley

1 year

Solitons in Munich @im_sergei

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John Dudley

@johnmdudley

5 years

Really delighted to see this appear! Summarizes 12 years (!!!) of work from 100s of researchers to understand and apply an (un) expected analogy between light and water waves.

Nature Reviews Physics

@NatRevPhys

5 years

Review: Rogue waves and analogies in optics and oceanography. @johnmdudley @GGoery Arnaud Mussot @DrAminChabchoub & @FredericDiasUCD discuss analogies between water & optical waves, experiments and field measurements. Read it now:

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John Dudley

@johnmdudley

3 years

More (3 tweets) from Thomas Young's 1807 Lectures on Natural Philosophy and the Mechanical Arts. First he introduces the principle of interference. We still see pictures like this in textbooks today!

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John Dudley

@johnmdudley

3 years

And while we are talking about the 60th anniversary of nonlinear optics paper, I just noticed the speed of publication ... I am guessing there is a story to tell there!

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John Dudley

@johnmdudley

3 years

And let's not forget how the "humble" Michelson interferometer was central to two fundamental experiments confirming different aspects of relativity ...

François Levrier

@FrancoisLevrier

3 years

Albert Abraham Michelson was born #OTD in 1852. The first American to receive a Nobel prize in Physics, in 1907, he showed the invariance of the speed of light in different reference frames, in contradiction with the aether theory.

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John Dudley

@johnmdudley

4 years

Congratulations Dr @SpSolveig !!! Fantastic PhD defence with half the jury present and half by video. Another happy graduate of @supuvir !

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John Dudley

@johnmdudley

3 years

In 1807 Thomas Young published his remarkable set of Lectures on Natural Philosophy and the Mechanical Arts. In it he describes the formation of rainbows and halos with some remarkable illustrations!

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John Dudley

@johnmdudley

5 months

Have just read a fantastic article in @OPNmagazine by the great Michael Berry with some personal reflections on the disocvery and properties of geometric phase!

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John Dudley

@johnmdudley

2 years

Inspired by @OPNmagazine 's image of the week by Luis Alberto Sánchez we took some photos of a green laser pointer in an olive oil bottle. Not exactly a straight line, and the fluoresence is very cool. Thanks @Pierre_Jean_Ch for the photo!

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John Dudley

@johnmdudley

2 years

Thoughts on journal impact factor. Most research is solid without being spectacular yet it all needs to be published, not least for students to learn writing. In optics, ~88% of papers appear in IF<5 journals. Different journals play different roles in the ecosystem. See below.

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John Dudley

@johnmdudley

3 years

With the focus on complexity following the 2021 Nobel Prize, delighted to announce our work in @NatureComms on one of the most complex unstable lasers we have ever studied! Work with Fanchao Meng @im_sergei @GGoery @ChrisFINOT @SylvestreT @CocoLapre

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John Dudley

@johnmdudley

4 years

Live from the @CLEOConf Plenary. Congratulations @MeteAtature and @rachelpcwon and also @syset2000 (sorry I missed a screenshot!)

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