Zobrazeno 1 - 10
of 26
pro vyhledávání: '"Rafi Weill"'
Publikováno v:
Physical Review Research, Vol 5, Iss 4, p 043300 (2023)
Atomic interferometers measure forces and acceleration with exceptional precision. The conventional approach to atomic interferometry is to launch an atomic cloud into a ballistic trajectory and perform the wave-packet splitting in momentum space by
Externí odkaz:
https://doaj.org/article/dc7e7df49eef4bfba94ed46a75bca5d1
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-6 (2019)
Bose–Einstein condensates were demonstrated at low temperatures, mostly with ultracold bosonic atoms. Here, the authors demonstrate BEC of photons in a standard 1D erbium–ytterbium co-doped fiber cavity at, below and above room temperature.
Externí odkaz:
https://doaj.org/article/c9321cadc5a74eecbe56bbb081d2c994
Autor:
Matej Kurtulik, Michal Shimanovich, Rafi Weill, Assaf Manor, Michael Shustov, Carmel Rotschild
Planck’s law of thermal radiation depends on the temperature, \(T\), and the emissivity, \(\epsilon\), which is the coupling of heat to radiation depending on both phonon-electron nonradiative-interactions and electron-photon radiative-interactions
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8dc6020f0307b596bc82e020a704864e
https://doi.org/10.21203/rs.3.rs-1103741/v1
https://doi.org/10.21203/rs.3.rs-1103741/v1
Publikováno v:
Optics express. 29(17)
We demonstrate photon Bose-Einstein condensation (photon-BEC) at a broad temperature range that is valid also in the long 1D fiber cavity limit. It is done with an erbium-ytterbium co-doped fiber (EYDF) cavity by overcoming the challenging requiremen
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-6 (2019)
Nature Communications
Nature Communications
Bose–Einstein condensation (BEC) is a special many-boson phenomenon that was observed in atomic particles at ultra-low temperatures. Later, BEC was also shown for non-atomic bosons, such as photons. Those experiments were usually done in micron-siz
Publikováno v:
Photonic Heat Engines: Science and Applications II.
This Conference Presentation, Thermally enhanced photoluminescence and fundamental upper limit of luminescence: theoretical study was recorded at Photonics West 2020 held in San Francisco, California United States.
Publikováno v:
Optics Express. 28:18135
We demonstrate a nonlinear light mode dispersion and a nonuniform frequency mode comb by a chirped fiber Bragg gratings (CFBG) Fabry-Perot (FP) at the 1550 nm wavelength regime. We give analytical expressions for the general chirp case, and an experi
Publikováno v:
2017 Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR).
Contrary to what is commonly accepted in lasers, we show that photons in standard erbium-doped fibers (edf) and lasers can be in thermal equilibrium and show lasing without an overall population inversion. The thermalization with Bose-Einstein spectr
We demonstrate thermalization and Bose-Einstein (BE) distribution of photons in standard erbium-doped fibers (edf) in a broad spectral range up to ~200nm at the 1550nm wavelength regime. Our measurements were done at a room temperature ~300K and 77K.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aa36ab0abbb18e9e8555c745b32db402
Publikováno v:
Optics Express. 25:32451
We show and identify the role of the backward amplified spontaneous emission (ASE) in inducing bistability and hysteresis in a unidirectional ring erbium-doped fiber (edf) laser. It results from the interplay between the signal and the backward ASE i