Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Ohad Segal"'
Autor:
Eran Lustig, Ohad Segal, Soham Saha, Eliyahu Bordo, Sarah N. Chowdhury, Yonatan Sharabi, Avner Fleischer, Alexandra Boltasseva, Oren Cohen, Vladimir M. Shalaev, Mordechai Segev
Publikováno v:
Nanophotonics.
We present an experimental study of optical time-refraction caused by time-interfaces as short as a single optical cycle. Specifically, we study the propagation of a probe pulse through a sample undergoing a large refractive index change induced by a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::801da332e48082860de76378728efd09
https://doi.org/10.1515/nanoph-2023-0126
https://doi.org/10.1515/nanoph-2023-0126
Publikováno v:
Advanced Optical Materials. 11
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aeea2d1941ec9156adb8827fc109d636
https://doi.org/10.1002/adom.202202318
https://doi.org/10.1002/adom.202202318
Autor:
Alexandra Boltasseva, Mordechai Segev, Eran Lustig, Colton Fruhling, Ohad Segal, Soham Saha, Vladimir Shalaev
Recent advances in ultrafast, large-modulation photonic materials have opened the door to many new areas of research. One specific example is the exciting prospect of photonic time crystals. In this perspective, we outline the most recent material ad
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::973ea5e7ed924b1ec85a8005cd7814fc
https://doi.org/10.1364/opticaopen.21916053
https://doi.org/10.1364/opticaopen.21916053
Autor:
Mordechai (Moti) Segev, Eran Lustig, Alex Dikopoltsev, Yonatan Sharabi, Mark Lyubarov, Ohad Segal, Yaakov Lumer
Publikováno v:
Metamaterials, Metadevices, and Metasystems 2022.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9078d6c7395902e306f1ca2028b50d1c
https://doi.org/10.1117/12.2633305
https://doi.org/10.1117/12.2633305
Autor:
Ohad Segal, Eran Lustig, Yonatan Sharabi, Moshe-Ishay Cohen, Ron Ziv, Mark Lyubarov, Alex Dikopoltsev, Mordechai Segev
Publikováno v:
Conference on Lasers and Electro-Optics.
We introduce topological phases in photonic space-time crystals, which have gaps in both momentum and frequency. We show that edge states waves refracted and reflected from spatial and temporal interfaces are governed by topological invariants.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::53141a02821ee7545dae1e9a985405ac
https://doi.org/10.1364/cleo_at.2022.jw4a.4
https://doi.org/10.1364/cleo_at.2022.jw4a.4
Autor:
Eran Lustig, Ohad Segal, Soham Saha, Colton Fruhling, Vladimir M. Shalaev, Alexandra Boltasseva, Mordechai Segev
Publikováno v:
Optics Express. 31:9165
Photonic Time-Crystals (PTCs) are materials in which the refractive index varies periodically and abruptly in time. This medium exhibits unusual properties such as momentum bands separated by gaps within which waves can be amplified exponentially, ex
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::84760958088dad0559b48cf44dd64c20
https://doi.org/10.1364/oe.479367
https://doi.org/10.1364/oe.479367
Autor:
Soham Saha, Ohad Segal, Colton Fruhling, Eran Lustig, Mordechai Segev, Alexandra Boltasseva, Vladimir M. Shalaev
Publikováno v:
Optics Express. 31:8267
Recent advances in ultrafast, large-modulation photonic materials have opened the door to many new areas of research. One specific example is the exciting prospect of photonic time crystals. In this perspective, we outline the most recent material ad
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2464d3c1fdfcb7198e23dce65b3db773
https://doi.org/10.1364/oe.479257
https://doi.org/10.1364/oe.479257
Publikováno v:
Applied Physics Letters. 120:231902
Far-UVC light can enable virus-deactivation while remaining harmless to human tissues. This triggered great efforts to create far-UVC light sources with sufficient emission power and efficiency. However, current sources, such as mercury lamps, KrCl e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a3cbe0744d2f3b813dc2f85db35e06aa
https://doi.org/10.1063/5.0092109
https://doi.org/10.1063/5.0092109
Publikováno v:
Conference on Lasers and Electro-Optics.
UV lamps are of increasing importance for safe virus disinfection. Here we propose a novel concept for UV sources based on a stack of phosphor-nanolayers, designed to maximize the output emission through photonic local-density-of-states engineering.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::add89f6851e8a2d8fcedd569e385e2e0
https://doi.org/10.1364/cleo_at.2021.jtu2r.3
https://doi.org/10.1364/cleo_at.2021.jtu2r.3
Publikováno v:
Physical Review Letters. 125
Scintillators are central for detection of γ-ray, x-ray, and high energy particles in various applications, all seeking higher scintillation yield and rate. However, these are limited by the intrinsic isotropy of spontaneous emission of the scintill
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::635138afe1bdf024ccd0b333a3fca2b7
https://doi.org/10.1103/physrevlett.125.040801
https://doi.org/10.1103/physrevlett.125.040801