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Perovskite Random Lasers, Process and Prospects [PDF]

open access: yesMicromachines, 2022
Random lasers (RLs) are a kind of coherent light source with optical feedback based on disorder-induced multiple scattering effects instead of a specific cavity. The unique feedback mechanism makes RLs different from conventional lasers.
Lei Wang   +4 more
doaj   +2 more sources

Random Lasers as Social Processes Simulators [PDF]

open access: yesEntropy, 2023
In this work, we suggest a quantum-like simulator concept to study social processes related to the solution of NP-hard problems. The simulator is based on the solaser model recently proposed by us in the framework of information cascade growth and echo ...
Alexander Alodjants   +6 more
doaj   +2 more sources

Self‐Induced Mode‐Locking in Electrically Pumped Far‐Infrared Random Lasers [PDF]

open access: yesAdvanced Science, 2023
Mode locking, the self‐starting synchronous oscillation of electromagnetic modes in a laser cavity, is the primary way to generate ultrashort light pulses.
Alessandra Di Gaspare   +10 more
doaj   +2 more sources

Beaming random lasers with soliton control [PDF]

open access: yesNature Communications, 2018
Owing to their lack of a conventional cavity, random lasers typically do not emit a defined beam in a specific direction. Here, the authors combine spatial solitons and collinear pumping to achieve light-confined random lasing with a smooth output ...
Sreekanth Perumbilavil   +6 more
doaj   +2 more sources

Random Lasers Based on Tellurite and Germanate Glasses and Glass-Ceramics Doped with Rare-Earth Ions [PDF]

open access: yesMicromachines
Random lasers (RLs) based on glasses and glass-ceramics doped with rare-earth ions (REI) deserve great attention because of their specific physical properties such as large thermal stability, possibility to operate at high intensities, optical wavelength
Davinson M. da Silva   +5 more
doaj   +2 more sources

All-optical adaptive control of quantum cascade random lasers [PDF]

open access: yesNature Communications, 2020
Tunable quantum cascade lasers can enable applications in multiple areas. Here, the authors demonstrate the adaptive control of the modes and emission spectra of quantum cascade random lasers through a spatially-tailored optical modulation of the active ...
S. Schönhuber   +9 more
doaj   +2 more sources

Temporal profiles for measuring threshold of random lasers pumped by ns pulses [PDF]

open access: yesScientific Reports, 2017
The working threshold is an important parameter to assess the performance of cavity-free random lasers. Here, the temporal profile measurement is proposed as an alternative method to determine the thresholds of the surface plasmon based random lasers ...
Xiaoyu Shi   +5 more
doaj   +2 more sources

Random number generation with arrays of coupled quantum-dot micropillar lasers [PDF]

open access: yesНаучно-технический вестник информационных технологий, механики и оптики, 2021
The paper investigates the results of random number generation with arrays of coupled quantum-dot micropillar lasers. The micropillars array laser generation is modeled based on the rate equations for quantum dot lasers.
Artem A. Petrenko   +2 more
doaj   +1 more source

Review of Random Fiber Lasers for Optical Fiber Sensors

open access: yesSensors, 2023
A random fiber laser does not need a traditional resonant cavity and only uses the multiple scattering of disordered media to provide feedback to achieve laser output.
Meng Tian, Wentao Zhang, Wenzhu Huang
doaj   +1 more source

Study on the Polarization of Random Lasers from Dye-Doped Nematic Liquid Crystals [PDF]

open access: yesNanoscale Research Letters, 2017
lihua YE   +2 more
exaly   +2 more sources

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