John D Joannopoulos
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Explore the profile of John D Joannopoulos including associated specialties, affiliations and a list of published articles.
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110
Citations
1489
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Recent Articles
1.
Roques-Carmes C, Salamin Y, Sloan J, Choi S, Velez G, Koskas E, et al.
Science
. 2023 Jul;
381(6654):205-209.
PMID: 37440648
Quantum field theory suggests that electromagnetic fields naturally fluctuate, and these fluctuations can be harnessed as a source of perfect randomness. Many potential applications of randomness rely on controllable probability...
2.
Rivera N, Sloan J, Salamin Y, Joannopoulos J, Soljacic M
Proc Natl Acad Sci U S A
. 2023 Feb;
120(9):e2219208120.
PMID: 36827265
The quantization of the electromagnetic field leads directly to the existence of quantum mechanical states, called Fock states, with an exact integer number of photons. Despite these fundamental states being...
3.
Yang Y, Roques-Carmes C, Kooi S, Tang H, Beroz J, Mazur E, et al.
Nature
. 2023 Jan;
613(7942):42-47.
PMID: 36600060
Flatbands have become a cornerstone of contemporary condensed-matter physics and photonics. In electronics, flatbands entail comparable energy bandwidth and Coulomb interaction, leading to correlated phenomena such as the fractional quantum...
4.
Roques-Carmes C, Rivera N, Ghorashi A, Kooi S, Yang Y, Lin Z, et al.
Science
. 2022 Feb;
375(6583):eabm9293.
PMID: 35201858
Bombardment of materials by high-energy particles often leads to light emission in a process known as scintillation. Scintillation has widespread applications in medical imaging, x-ray nondestructive inspection, electron microscopy, and...
5.
Yin K, Qu Y, Kooi S, Li W, Feng J, Ratto J, et al.
ACS Nano
. 2021 Dec;
15(12):19917-19923.
PMID: 34860001
The ability to control the propagation direction of light has long been a scientific goal. However, the fabrication of large-scale optical angular-range selective films is still a challenge. This paper...
6.
Sloan J, Rivera N, Joannopoulos J, Soljacic M
Phys Rev Lett
. 2021 Aug;
127(5):053603.
PMID: 34397241
Time-varying optical media, whose dielectric properties are actively modulated in time, introduce a host of novel effects in the classical propagation of light, and are of intense current interest. In...
7.
Yang Y, Zhen B, Joannopoulos J, Soljacic M
Light Sci Appl
. 2021 Apr;
10(1):73.
PMID: 33828072
No abstract available.
8.
Wong L, Rivera N, Murdia C, Christensen T, Joannopoulos J, Soljacic M, et al.
Nat Commun
. 2021 Mar;
12(1):1700.
PMID: 33731697
Fundamental quantum electrodynamical (QED) processes, such as spontaneous emission and electron-photon scattering, encompass phenomena that underlie much of modern science and technology. Conventionally, calculations in QED and other field theories...
9.
Christiansen R, Lin Z, Roques-Carmes C, Salamin Y, Kooi S, Joannopoulos J, et al.
Opt Express
. 2020 Nov;
28(23):33854-33868.
PMID: 33182865
We demonstrate new axisymmetric inverse-design techniques that can solve problems radically different from traditional lenses, including reconfigurable lenses (that shift a multi-frequency focal spot in response to refractive-index changes) and...
10.
Yang Y, Zhen B, Joannopoulos J, Soljacic M
Light Sci Appl
. 2020 Oct;
9:177.
PMID: 33088494
The Hofstadter model, well known for its fractal butterfly spectrum, describes two-dimensional electrons under a perpendicular magnetic field, which gives rise to the integer quantum Hall effect. Inspired by the...