Results 41 to 50 of about 170,298 (303)

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

On the Performance of the Box Particle Filter for Extended Object Tracking Using Laser Data [PDF]

open access: yes, 2012
This paper considers the challenging task of real time extended object tracking using cluttered measurements from laser range scanners. The performance of the recently proposed Box Particle Filter (Box PF) algorithm is evaluated utilising real ...
Gning, Amadou   +13 more
core   +1 more source

Broadband plasmonic silver nanoflowers for high-performance random lasing covering visible region

open access: yesNanophotonics, 2017
Multicolor random lasing has broad potential applications in the fields of imaging, sensing, and optoelectronics. Here, silver nanoflowers (Ag NF) with abundant nanogaps are fabricated by a rapid one-step solution-phase synthesis method and are first ...
Chang Qing   +5 more
doaj   +1 more source

Random-laser dynamics with temporally modulated pump

open access: yes, 2018
We present an experimental study of the effects of temporal modulation of the pump intensity on a random laser. The nanosecond pump pulses exhibit rapid intensity fluctuations which differ from pulse to pulse.
Sebastian Knitter (2588383)   +3 more
core   +1 more source

Efficient and tunable liquid crystal random laser based on plasmonic-enhanced FRET [PDF]

open access: yes, 2023
Random lasers (RLs), which possess peculiar advantages (e.g., emission and coherence tunable) over traditional lasers with optical resonators, have witnessed rapid development in the past decades.
Hu, Zhijia   +27 more
core   +1 more source

The controllable intensity and polarization degree of random laser from sheared dye-doped polymer-dispersed liquid crystal

open access: yesNanophotonics, 2017
The random laser from sheared dye-doped polymer-dispersed liquid crystal (DDPDLC) is investigated. As the emission intensity weakens, the threshold of random laser from DDPDLC increases from 2.0 mJ/pulse to 4.0 mJ/pulse, and the degree of polarization ...
Ye Lihua   +6 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

Diffusive to quasi-ballistic random laser: incoherent and coherent models

open access: yes, 2016
International audienceWe study the crossover between the diffusive and quasi-ballistic regimes of random lasers. In particular, we compare incoherent models based on the diffusion equation and the radiative transfer equation (RTE), which neglect all wave
Rotter, Stefan   +11 more
core   +2 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

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