BC TWITTER
Saved by @CodyyyGardner

Hey #optics and #photonics twitter

It's time again for the 2nd annual #top10photonics thread, where I compile my own #top10 best photonics papers list of the year!

See here for last year's thread:
https://t.co/6h82mPAn3w

A thread 👇

 Same disclaimers as last time:
1. These aren't just papers that were published in 2020. They are papers that were added to my library in 2020. Some are a little older — some are a lot older. All are interesting or exciting to me in some way.
2. I reiterate - TO ME. This list is highly subjective, and is mostly about what captured my imagination most, not about what will make the biggest impact, or what is most worth funding. The order is mostly arbitrary too. This is just for fun :)
3. Once again I am NOT including any of my papers, or any from my current or former groups. If you're curious about what I do, drop a proverbial tip in my jar and peruse my publication list here:
https://t.co/zMB3vAV02S
And while I have your attention, register for #POM20ja, happening in 2 weeks. (It's free!) It's a completely reinvented @PhotonicsMeetup, and it promises to be a great time!

Now, on to the main event!
# Honourable mention (since it's not original research):
Phys. Today 68, 44 (2015)

I found this one on twitter. It's a transcription of a round-table discussion about the future of the laser between the all-time greats (Townes, etc) that happened in 1972!
https://t.co/oJ26qE6gzv
#10 Presutti, F. & Monticone, F. Focusing on bandwidth: achromatic metalens limits. Optica 7, 624 (2020). https://t.co/DEQ4PaaOOp

It's not *sexy*, but it's important: a rigorous treatment from @FMResearchGroup on the bandwidth limitations of metasurfaces.
I learned quite a bit, especially about fundamental limits in optics (and not just the time-bandwidth product). It's also notable that quite a few experimental devices have already approached their theoretically derived limit... makes you think about what paradigm is next...
#9 Pierangeli, D., Marcucci, G. & Conti, C. Large-Scale Photonic Ising Machine by Spatial Light Modulation. Phys. Rev. Lett. 122, 213902 (2019). https://t.co/lJocrZv9kh

This is a wonderful (scalable!) new type of optical computation! Love to see it
#8 We've already seen filters for wavelength, polarization, or (most recently) incident angle. But how about *coherence* filters?
T. Frank et al. Discriminating between Coherent and Incoherent Light with Planar Metamaterials. Nano Lett. 2019, 19, 10, 6869
https://t.co/JPP9SvDNmY
I like this paper because it demonstrates a really novel application for metasurfaces, which for ages kept being pitched as "flat lenses." It really shows the power of the platform. (I wonder if they discovered this effect accidentally 🤣)
#7 If you're active on #photonics twitter, then you might have seen this one before:
Savo, R. et al. Broadband Mie driven random quasi-phase-matching. Nat. Photonics 14, 740–747 (2020) by @romolo_savo and @rachel_grange of the @ONG_ETH group:

https://t.co/yfVre3Xxm5
This paper combines my favorite #photonics things — nanoparticles, nonlinear optics, phase-matching tricks, and gorgeous SEMS. I also love that it's cleverly fishing its favorite properties from different length scales: resonant NLO enhancement, broadband quasi-phasematching
#6 Xiao, Y. et al, Planck spectroscopy. arXiv:2012.05892 [physics.optics]
https://t.co/PSDZ83x5pL

Simple idea with a powerful application. And a clever name! This is the type of measurement method that may become a standard in the field. As expected from the @KatsGroup!
I mean, *this* is the entirety of the measurement apparatus~!!

Reminds me of z-scan in its simplicity.
#5 M. van Niekerk et al. Two-dimensional extreme skin depth engineering for CMOS photonics. arXiv (2020). https://t.co/H4O86bgJh3 Here, the authors use the "skin-depth engineering" concept to increase or decrease coupling between neighboring waveguides at will.
This paper is the spiritual sequel to @JahaniSaman and @zjacob_group's 2018 @NatureComms paper here
https://t.co/aOxujIx1aH, which was a clever idea that imho didn't get enough attention. Perhaps this publication will push the idea over the edge.
#4 Turn your microscope into a dark field scope in 3 easy steps!

The proposal is to use a substrate with its own built-in angularly-selective fluorescence to convert any microscope into a dark field microscope. Incredibly simple, and the images are super convincing:
Chazot, C. A. C. et al. Luminescent surfaces with tailored angular emission for compact dark-field imaging devices. Nat. Photonics 14, 310 (2020).
https://t.co/yxaCwEosE8
#3 High-Q Quasi-BIC metasurfaces.
From my metamaterials-perspective, BICs dominated the year, with notably excellent work from Yuri Kivshar's team and collaborators.

Here I'm choosing to highlight the paper with the highest Q-factor yet, Q~20,000:
It feels like we have finally found a path forward with which we will be able to challenge integrated high-Q microresonators.

Liu, Z. et al. High-Q Quasibound States in the Continuum for Nonlinear Metasurfaces. Phys. Rev. Lett. 123, 253901 (2019):https://t.co/sAbIh7zf0v
#2 U. Elu et al. Seven-octave high-brightness and carrier-envelope-phase-stable light source. Nat Photonics (2020).
https://t.co/goMIT58BIK

*SEVEN* octaves? I mean, come on, that range is absolutely bananas, from 340 nm to 40,000 nm~!!
There isn't a material that is transparent to that entire range, or a detector that works for that whole range...

And it's CEP stable? I can't even fathom.
#1 OK... you probably know where I'm going, since you haven't seen this paper yet on the list. This one made international headlines. I'm choosing to include it here because the experiment was just a tour de force. "100 mode interferometer, 2500 alignment paths". Jeezus.
I'm talking, of course, about
H.-S. Zhong et al, Quantum computational advantage using photons. Science 370, 1460 (2020)

What a landmark paper.

https://t.co/t77d5hsFb8
I bet the authors were a *little* disappointed that they were just behind the Google paper in Nature last year, but that doesn't diminish this accomplishment. It also gives advisors the world-over ammo against students complaining about how hard it is to align their setup XD
So, what do you think? What papers should have made the list that I completely missed out on! Please share them below!
#top10photonics

And happy new year! I hope you all publish multiple Nature papers that can be featured here in 2021 :)
@threadreaderapp

Unroll please :)

More from Twitter

Dickie Bush \U0001f6a2
Dickie Bush 🚢
@dickiebush
The most valuable Twitter feature you aren't using:

Advanced search.

Knowing how to use it will help you find the hidden gems of the Twitter archives and 10x your Twitter experience.

Here's the step-by-step guide:

Most Twitter users know nothing about advanced search.

And the few that do think you have to access it this way: by clicking the three dots in the search bar, then clicking advanced search, then using these fields.

This is painfully inefficient.

Luckily, there is a better way.


You can leverage the power of advanced search right in the search bar using text.

And there are six different things you can create filters for:

• Date
• Keywords
• Number of likes
• Number of replies
• Number of retweets

Let's dive into how to use each.

Before we do that, you might be thinking, what does this do for me?

Twitter is a real-time platform.

But the Twitter archives are full of gems.

Especially from some of the most prominent people on Twitter, you can learn a lot by combing through popular things they've said.

The foundation of advanced search is the "from" query.

Every query will start like this:

from:handlename

An *important* note: do not include the @ before the user's handle.
ALL , TWITTER
Charlotte Clymer \U0001f3f3\ufe0f\u200d\U0001f308
Charlotte Clymer 🏳️‍🌈...
@cmclymer
I wrote a lot of pieces in 2020! As we close out the year, I want to share a short list of my favorites. (thread)

In March, while we all watched in horror as the Trump administration botched the initial response to the pandemic, I wrote for @Independent about the bizarre and unjust access many healthy celebrities gained to COVID tests, which were quite scarce.

In April, when it was apparent Joe Biden was on his way to winning the nomination, I wrote for @washingtonpost on why progressives should have optimism about a Biden White House.

In June, the Supreme Court issued a landmark ruling affirming employment protections for LGBTQ people. It's cause for celebration, but as I wrote for @Cosmopolitan: this is a mere fraction of LGBTQ equality. We *must* pass the Equality Act.

That same month brought controversy as J.K. Rowling seemed to be completely unaware of the violence and discrimination faced by trans and non-binary people. So, I wrote about my own experiences in that vein for @USAToday in the hopes of educating folks:
TWITTER
Advertisement
Mark Brooks
Mark Brooks
@markbrooks
1/ My first @threadapalooza. I've been managing people for 18+ yrs and tweeting about it for 10. Here's 100 tweets on what I've learned and try to implement in my work @PermanentEquity :

2/ If a company's highest paid people had jobs they'd only observed, had never trained for, and had no actual experience doing, you'd think it was crazy. Yet this describes people managers in most orgs.

3/ Managing people is not a promotion in your current line of work. It is an entirely new career that uses a different set of skills. Train. Your. People Managers.

4/ If your employees feel like they have to manage people to make more money, that's a fail. Management jobs are for people who are passionate about helping others optimize their gifts, not just for people looking for more compensation.

5/ Provide non-management career options that offer better compensation for specializing in a certain area and documenting/communicating what you know. This helps keep bad managers out of management.
TWITTER
JK MOLINA
JK MOLINA
@OneJKMolina
27 Tweets That Will Hurt Like A Motherfucker

Thread:

You don't want a girlfriend, you just want to feel loved.

If you brag about not giving a fuck, you’re giving a fuck.

You only hate your parents because you're too scared to forgive them.

People you haven't forgiven will live rent-free in your mind until you do.
TWITTER
Khadijah *a centered voice*
Khadijah *a centered v...
@UpFromTheCracks
The twitter ban on 45 is a victory in some sense for the immediate but a warning in the long term, not on the curtail of free speech but as gesture towards the expansive power commercial tech has on every aspect of our governance and our lives, I don’t quite have the words but-

What I’m trying to get at, is not just that Twitter’s decision allows us to see—in ways that have been obscured—how much control they have over content moderation—

but as @Elinor_Carmi points out “platforms don’t just moderate or filter “content”; they alter what registers to us and our social groups as “social” or as “experience.” https://t.co/GSByAOoDWg changed

I’m worried that the celebration of Twitter’s intervention on fascist rhetoric-however too little and too late- directs us to desire tech companies enforcement of liberal and democratic procedures rather than towards an investigation of

how they’ve developed computational infrastructures which exceed the power of the nation state, are hollowing out our institutions for frictionless (see removing human contact) optimization and are insufficiently described by neoliberalism
TWITTER

You May Also Like

\U0001d54d\U0001d560\U0001d56a\U0001d552\U0001d558\U0001d556\U0001d563
𝕍𝕠𝕪𝕒𝕘𝕖𝕣...
@V0YAGERTWEETS
Ｇａｕ Ｍａｔａ Ｉｎ Ｖｅｄｉｃ
Ｃｕｌｔｕｒｅ

It is said that the one who bears the dust thrown from the hoof of Gaumata on his head, as if taking a bath in the water of the teerth sthalam and getting rid of all sins.


Ved and all other Hindu scriptures venerate the cow. The Vedic dictionary, Nighantu, gives amongst other synonyms of 'Gau' [ or cow] the words 'Aghnya', 'Ahi', and 'Aditi'.

Yaska the vedic decoder and commentator on Nighantu, defines these as-

Aghnya —— the one that ought not to be killed
Ahi —— the one that must not be slaughtered.
Aditi —— the one that ought not to be cut into pieces.

These three names of cow signify that this is an animal which should not to be put to tortures. These words appear frequently throughout the Veda in context of the cow.

But in due course the falsehood of killing cows spread far and wide and they became even more deep rooted when western scholars with their half baked knowledge of Sanskrit transliterated these interpretations of commentaries of Sayanacharya ,
ALL
WORLD OF SANATAN DHARMA
WORLD OF SANATAN DHARM...
@world_sanatan
PETER PADUKAM - THE LEGEND OF MADURAI MEENAKSHI TEMPLE AND A BRITISH COLLECTOR.

A British Collector named Rous Peter was appointed as Collector of Madurai from 1812 to 1828.

Though a Christian by faith, he respected all faiths including Hinduism and also honored local practice


Collector Peter was the temple administrator of the Meenakshi Amman Temple and conducted all his duties with sincerity and honesty and respected the religious sentiments of all people.

Collector Rous Peter respected and treated people of all faiths equally and this noble trait

earned him the popular nickname ‘Peter Pandian'

Goddess Meenakshi Amman Temple was situated between Collector Peter's residence and office.

Everyday he used to go to the office by his horse and while crossing the temple, he got down from his horse, removed the hat and his shoes

and crossed the whole path on his foot.

Through this small gesture he expressed his reverence to the Goddess!

One day there was a heavy downpour in Madurai city and River Vaigai was in spate.

Collector was sleeping in his residence and was suddenly disturbed and woken up by

the sound of anklets and he left his bed to find out from where the sound had came.

He saw a small girl wearing pattuvastrams (silk garments) and precious ornaments and addressing him as 'Peter come this way'.
ALL
Advertisement
\u092a\u094d\u0930\u0924\u093f\u091c\u094d\u091e
प्रतिज्ञ...
@RamaInExile
#twitterArts
Arts are best form to Express thoughts & devotion. In All civilization Arts played very important role to express sprituality. Tibbeten Tangkhas are prime example .

List of My Paintings & Sketches


प्रलय पयोधि-जले धृतवान् असि वेदम्
विहित वहित्र-चरित्रम् अखेदम्
केशव धृत-मीन-शरीर, जय जगदीश हरे!!


छलयसि विक्रमणे बलिम् अद्भुत-वामन
पद-नख-नीर-जनित-जन-पावन
केशव धृत-वामन रूप जय जगदीश हरे


नंदसि यज्ञ- विधेर् अहः श्रुति जातम्
सदय-हृदय-दर्शित-पशु-घातम्
केशव धृत-बुद्ध-शरीर जय जगदीश हरे


क्षत्रिय-रुधिर-मये जगद् -अपगत-पापम्
स्नपयसि पयसि शमित-भव-तापम्
केशव धृत-भृगुपति रूप जय जगदीश हरे
ALL
WORLD OF SANATAN DHARMA
WORLD OF SANATAN DHARM...
@world_sanatan
UNTOLD STORY OF QUEEN BHAVASHANKARI OF BENGAL - A 🧵u must read

Know the role of Naga Sadhus

PART-1

One of the most underrated empires to ever grace India is the kingdom of Bhurshut from central Bengal.

1/


A medieval powerhouse this kingdom stood firm against the Pathan invasion from Orissa twice, and with each time devastating the enemy forces.

Along with this, we also have to note that this was the time when the empire was under the reign of a widowed queen named Bhavashankari.

She wasn’t even born in a royal family and yet she achieved what most of the kings couldn’t do

This begs the question, why does no one remember this great kingdom?

3/

Bhurshut empire thrived from 15th century till late 18th century as an independent kingdom while acting as tributary state with full autonomy.

4/

What’s even more puzzling is that no one knows about the great queen Bhavanshakari who thrashed the Pathans single handedly without the aid of their allies.

5/
ALL
Sahil
Sahil
@sahilypatel
Want to do an MBA for free ?

A thread 👇

1) Leadership: Foundations of Teamwork and Leadership

School: wharton

2) Marketing: Marketing Management

School: wharton

3) Microeconomics: Microeconomics for Managers

School:

4) Financial Theory

School:
ALL , MBA , MBA SERIES