Results 41 to 50 of about 1,917 (117)

A Self-Consistent Quantum Field Theory for Random Lasing

open access: yesApplied Sciences, 2019
The spatial formation of coherent random laser modes in strongly scattering disordered random media is a central feature in the understanding of the physics of random lasers.
Andreas Lubatsch, Regine Frank
doaj   +1 more source

Advances in Random Fiber Lasers and Their Sensing Application

open access: yesSensors, 2020
Compared with conventional laser, random laser (RL) has no resonant cavity, reducing the requirement of cavity design. In recent years, the random fiber laser (RFL), a novel kind of RL, has made great progress in theories and experiments.
Hong Chen   +9 more
doaj   +1 more source

ZnO nanorod array random lasers fabricated by a laser-induced hydrothermal synthesis

open access: yesNew Journal of Physics, 2016
We demonstrate random lasing in ZnO nanorod array (NRA) structures fabricated by a laser-induced hydrothermal growth, which would make it possible to control structural parameters, such as diameter, length, density and so on, by adjusting the laser ...
Hideki Fujiwara   +3 more
doaj   +1 more source

Spectrum-tailored random fiber laser towards ICF laser facility

open access: yesMatter and Radiation at Extremes, 2023
Broadband low-coherence light is considered to be an effective way to suppress laser plasma instability. Recent studies have demonstrated the ability of low-coherence laser facilities to reduce back-scattering during beam–target coupling.
Mengqiu Fan   +16 more
doaj   +1 more source

Turbulence hierarchy in a random fibre laser [PDF]

open access: yesNature Communications, 2017
AbstractTurbulence is a challenging feature common to a wide range of complex phenomena. Random fibre lasers are a special class of lasers in which the feedback arises from multiple scattering in a one-dimensional disordered cavity-less medium. Here we report on statistical signatures of turbulence in the distribution of intensity fluctuations in a ...
Iván R. Roa González   +9 more
openaire   +4 more sources

Nd:YVO4 Random Laser with Preferential Emission at 1340 nm over 1064 nm

open access: yesPhotonics
Neodymium-doped yttrium vanadate random lasers have presented exceptional efficiency and output power at the 1064 nm emission wavelength. However, emission at 1340 nm has not yet been observed for these random lasers, even though regular bulk lasers have
Jessica Dipold   +2 more
doaj   +1 more source

Dynamics of a Random Laser above Threshold [PDF]

open access: yesPhysical Review Letters, 2001
Physical Review ...
van Soest, G.   +3 more
openaire   +3 more sources

Random Emission and Control of Whispering Gallery Mode Using Flexible Optical Fiber

open access: yesPhotonics
Axially uniform optical fibers provide a low-cost, scalable platform for the emission of whispering gallery mode (WGM) lasers. This paper proposes a method for generating and controlling WGM lasers based on the design of a flexible optical fiber array ...
Bingyang Cao, Zhen He, Weili Zhang
doaj   +1 more source

Sensitive Displacement Sensor Based on a Flexible Grating Random Laser

open access: yesNanomaterials
This study proposes and demonstrates a highly sensitive displacement sensor based on a flexible random laser. The sensor utilizes a polydimethylsiloxane (PDMS) film where a self-assembled surface grating structure is formed via oxygen plasma surface ...
Guang Dai   +5 more
doaj   +1 more source

Multi-Band Up-Converted Lasing Behavior in NaYF4:Yb/Er Nanocrystals

open access: yesNanomaterials, 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

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