Results 71 to 80 of about 1,917 (117)

Turbulent Intermittency in a Random Fiber Laser

open access: yesAtoms, 2019
In fluid turbulence, intermittency is the emergence of non-Gaussian tails in the distribution of velocity increments in small space and/or time scales. Intermittence is thus expected to gradually disappear as one moves from small to large scales. Here we
Antônio M. S. Macêdo   +4 more
doaj   +1 more source

Reconfigurable logic gates driven by spatially designed excitation: Spectra manipulation the coupled random laser system

open access: yesAPL Photonics
All-optical logic gates offer ultra-fast speed information processing and lower power consumption that still misses the reconfigurability, remaining beset for high power consumption and large space requirements.
Xiaoyu Shi   +4 more
doaj   +1 more source

Full Bandwidth Time-Domain Intensity Statistical Characteristics of Raman Random Fiber Laser Based on a Temporal Dynamics Controllable Pump

open access: yesPhotonics
The temporal dynamics and statistical characteristics of Raman random fiber lasers are of great significance for studying their physical properties and applications.
Zhitao Leng, Mengqiu Fan, Han Wu
doaj   +1 more source

Second-harmonic generation within a random fiber laser

open access: yesHigh Power Laser Science and Engineering
Optical fibers offer convenient access to a variety of nonlinear phenomena. However, due to their inversion symmetry, second-order nonlinear effects, such as second-harmonic generation (SHG), are challenging to achieve.
Yousi Yang   +8 more
doaj   +1 more source

Random pinhole attenuator for high-power laser beams

open access: yesHigh Power Laser Science and Engineering
The intensity attenuation of a high-power laser is a frequent task in the measurements of optical science. Laser intensity can be attenuated by inserting an optical element, such as a partial reflector, polarizer or absorption filter.
Seong Cheol Park   +7 more
doaj   +1 more source

Biomimetic random lasers [PDF]

open access: yes, 2015
The growing demand for innovative photonic applications is motivating research towards the realization of soft, biocompatible and implantable photonic components that offer smart and low-cost interfaces. We report peculiar lasing emission from bio-mimetic materials.
Ghofraniha N.   +4 more
openaire   +1 more source

Recent advances and applications of random lasers and random fiber lasers

Progress in Quantum Electronics, 2021
Abstract Random Lasers (RLs) and Random Fiber Lasers (RFLs) have been the subject of intense research since their first experimental demonstration in 1994 and 2007, respectively. These low coherence light sources rely on multiple scattering of light to provide optical feedback in a medium combining a properly excited gain material and a scattering ...
Anderson S.L. Gomes   +3 more
openaire   +1 more source

Liquid crystal random lasers

Physical Chemistry Chemical Physics, 2023
The enthusiasm for research on liquid crystal random lasers (LCRLs) is driven by their unusual optical properties and promising potential for broad applications in manufacturing, communications, medicine and entertainment.
Guangyin Qu   +8 more
openaire   +2 more sources

Model for a Random Laser

Physical Review Letters, 2001
Physical Review ...
A L, Burin   +3 more
openaire   +2 more sources

Random Lasers

2022
One essential component of a laser is the cavity, which provides optical confinement and feedback for lasing oscillation. In a highly disordered medium, light experiences multiple scattering and undergoes a random walk. Surprisingly, lasing can occur in a random system without well-defined cavities.
openaire   +1 more source

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