Prof at Harvard; known for band gap engineering, quantum cascade laser, Casimir forces, metalenses, flat optics. Metalenz metalenz.com/ Member NAS, NAE, NAI

Joined August 2016
87 Photos and videos
Discovery of a heavier proton !! Nature never ceases to amaze even at the fundamental level! share.google/GHPZiN9fHTDLl8d…

1
1
8
807
Science July26 Quantum photonics promises scalable, secure tech, but current systems are bulky. Congrats Kerolos Yousef for engineering a metasurface that entangles photons using graph-designed metaatoms, paving the way for RT chip-scale quantum computing! share.google/YfsTJ2jtZdL0t6u…
3
8
47
2,378
Federico Capasso retweeted
An expert is a person who has made all the mistakes that can be made in a very narrow field. – Niels Bohr
106
1,466
8,368
468,317
sent by NASA’s Psyche spacecraft, which is currently located approximately 1.5 times the distance between Earth and the sun. yahoo.com/tech/space-laser-t…

1
21
2,346
First image of solar eclipse with a metalens telescope! Taken by my student Arman Amirzhan at a site near Irasburg, Vermont (44°49'50.5"N 72°14'23.8"W) on 4/8/2024. The 10 cm glass metalens was fabricated by my postdoc Joon-Suh Park. Note the flare from the corona near hour 2.
1
13
129
5,742
Solitons on demand! We demonstrate solitons that are stable in a ring laser and form spontaneously with tuning laser bias, eliminating the need for an external optical pump. Congrats to a great international team! nature.com/articles/s41586-0…
2
7
69
4,361
Nikola Tesla: The genius Who could see 100 years ahead!
Replying to @PhysInHistory
When wireless is perfectly applied the whole earth will be a huge brain. We shall be able to communicate with one another instantly, irrespective of distance. Nikola Tesla's prediction in 1926 (Tesla died on January 7, 1943)
1
2
30
3,411
When drawing water, the sprinkler alters its direction of rotation, leading to a more erratic and slower movement. This behavior is due to the specifics of how fluid moves through the sprinkler's structure. Fluid mechanics is a most complex science! physics.aps.org/articles/v17…
1
3
22
2,415
Federico Capasso retweeted
Replying to @PhysInHistory
This is entirely true. Any neural system, any brain, is constantly seeking truth for survival and can find completely unique ways to discover new truths. No two people who can communicate with other people in natural language can escape the gift of their unique knowledge and intelligence. This is the inevitable consequence of the fundamental symmetry of neural computation which is completely absent in von Neuman computing architectures. Truly, we all are constantly find new valuable truths just by interacting socially in the world. This is not my observation. It stems from natural science over 400 years old. medium.com/liecatcher/100-bi…

3
4
11
1,953
Exciting AI advance! NY Times quotes lead author Dr. Trinh: “We’re not making incremental improvement,” he said. “We’re making a big jump, a big breakthrough in terms of the result.” “Just don’t overhype it,” he said. nature.com/articles/s41586-0…
4
24
2,593
The Mid-infrared has lagged behind in Integrated Photonics: but here we demonstrate the integration of Mid-IR ring resonators and directional couplers, incorporating a quantum cascade active region in the waveguide core nature.com/articles/s41467-0…

2
44
3,107
The authors “advocate for the value of learning and surprise, and for an irreverence for boundaries of all kind — between disciplines, science and technology” This was the Bell Labs culture and became the guiding light for my own research! nature.com/articles/s42254-0…
1
21
85
10,252
New high tech method to crack a stubborn lobster! So proud of my experimental skills!
3
32
2,417
Carbon Nitride synthesized for the first time by compressing carbon and nitrogen between diamond points at 700,000 times atmospheric pressure and heating to 3000°C with lasers! newscientist.com/article/240…
1
3
40
3,233