Results 21 to 30 of about 170,298 (303)
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
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, 2021 Plasmonic random lasers continue to generate significant interest in the fields of optics and photonics due to their improved performance. This owes to the greater scattering strength and enhanced local field offered by the plasmonic scatterers. However,
Murukeshan, V. M. +3 more
core +1 more source
Physical Review Letters, 2007 We investigate the effects of two dimensional confinement on the lasing properties of a classical random laser system operating in the incoherent feedback (diffusive) regime. A suspension of 250nm rutile (TiO2) particles in a Rhodamine 6G solution was inserted into the hollow core of a photonic crystal fiber (PCF) generating the first random fiber ...
de Matos, Christiano J. S. +5 more
openaire +3 more sources
Mode Controllability of a Network Random Laser [PDF]
, 2022 Nanophotonic networks, micrometer-scale systems made of interconnected sub-wavelength waveguides, have important applications in quantum optics and integrated photonics.
Cipolato, Oscar
core
Coherent instabilities in random lasers [PDF]
Physical Review A, 2011 A numerical study is presented of random lasers as a function of the pumping rate above the threshold for lasing. Depending on the leakiness of the system resonances, which is typically larger in random lasers compared to conventional lasers, we observe that the stationary lasing regime becomes unstable above a second threshold.
Andreasen, Jonathan +2 more
openaire +2 more sources
Random Laser Action in Dye-Doped Polymer Media with Inhomogeneously Distributed Particles and Gain
Applied Sciences, 2019 The properties of random lasing are investigated for bubble-structure (BS) dye-doped polymer random media in which non-scattering and no-gain regions are distributed.
Takashi Okamoto, Masaki Mori
doaj +1 more source
Optics Express, 2005 A microchip-type laser with multiple scattering from powder as necessary feedback is demonstrated. The laser consists of a transparent ceramic Nd:YAG microchip and a Nd:YAG powder tablet, operates at quasi-continuous- wave regime pumped by a laser diode array.
Yan, Feng +4 more
openaire +2 more sources
Nanophotonics, 2023 A light source with narrowband, sufficient brightness, and low spatial coherence is required for certain applications such as optical imaging and free-space optical communication.
Wan Yuan +6 more
doaj +1 more source
Generation of Narrow Modes in Random Raman Fiber Laser Based on Multimode Fiber
Photonics, 2023 We present a new design of a random Raman fiber laser based on a graded-index multimode fiber as the media composing the cavity that allows the generation of narrow spectral lines.
Ilya D. Vatnik +2 more
doaj +1 more source
Electrically driven random lasing from a modified Fabry–Pérot laser diode
, 2022 Random lasers are intriguing devices with promising applications as light sources for imaging, sensing, super-resolution spectral analysis or complex networks engineering.
López, Cefe +2 more
core +1 more source