Results 31 to 40 of about 527,555 (282)
Photon statistics of a random laser [PDF]
, 1998 A general relationship is presented between the statistics of thermal radiation from a random medium and its scattering matrix S. Familiar results for black-body radiation are recovered in the limit S to 0.
AYu Zyuzin +32 more
core +4 more sources
External Electric Field Tailored Spatial Coherence of Random Lasing
Crystals, 2022 In this study, spatial coherence tunable random lasing is proposed by designing a random laser with separate coupling configuration between the gain medium and the scattering part.
Yaoxing Bian +5 more
doaj +1 more source
Wavelength-switchable L-band fiber laser assisted by ultrafast laser fabricated random reflectors [PDF]
EPJ Web of Conferences, 2022 A wavelength-switchable L-band erbium-doped fiber laser (EDFL) assisted by an artificially controlled backscattering (ACB) fiber reflector is here presented.
Perez-Herrera Rosa Ana +5 more
doaj +1 more source
Statistical regimes of random laser fluctuations [PDF]
, 2006 Statistical fluctuations of the light emitted from amplifying random media are studied theoretically and numerically. The characteristic scales of the diffusive motion of light lead to Gaussian or power-law (Levy) distributed fluctuations depending on ...
B. L. Altshuler +10 more
core +2 more sources
Statistical outliers in random laser emission [PDF]
, 2018 We provide theoretical and experimental evidence of statistical outliers in random laser emission that are not accounted for by the, now established, power-law tailed (L\'evy) distribution.
Cavalieri, Stefano +5 more
core +2 more sources
Tunable Random Fiber Laser Based on Dual-Grating Structure
Photonics, 2023 In order to reduce the pumping threshold and achieve a short-cavity single-mode transmission with a narrow-linewidth random fiber laser, we propose a tunable random fiber laser based on the combination of random grating and highly reflective fiber Bragg ...
Yanan Niu +6 more
doaj +1 more source
Superdiffusive random laser [PDF]
Physical Review A, 2019 The peculiar characteristics of random laser emission have been studied in many different media, leading to a classification of the working regimes based on the statistics of spectral fluctuations. Alongside such studies, the possibility to constrain light propagation by L vy walks, i.e.
Tommasi F. +3 more
openaire +2 more sources
Thermal radiation and amplified spontaneous emission from a random medium [PDF]
, 1998 We compute the statistics of thermal emission from systems in which the radiation is scattered chaotically, by relating the photocount distribution to the scattering matrix - whose statistical properties are known from random-matrix theory.
Beenakker, C. W. J.
core +4 more sources
A random laser as a dynamical network
New Journal of Physics, 2014 The mode dynamics of a random laser is investigated in experiment and theory. The laser consists of a ZnCdO/ZnO multiple quantum well with air-holes that provide the necessary feedback.
M Höfner, H-J Wünsche, F Henneberger
doaj +1 more source
Multi-Band Up-Converted Lasing Behavior in NaYF4:Yb/Er Nanocrystals
Nanomaterials, 2018 Random lasers have attracted great interests and extensively investigation owing to their promising applications. Here, we explored unambiguously the multi-band up-converted random lasing from NaYF4:Yb,Er nanocrystals (NCs).
Ya-Pei Peng +8 more
doaj +1 more source