Results 51 to 60 of about 1,917 (117)

The transition from incoherent to coherent random laser in defect waveguide based on organic/inorganic hybrid laser dye

open access: yesNanophotonics, 2018
This paper systematically demonstrated a variety of experimental phenomena of random lasers (RLs) of N,N′-di-(3-(isobutyl polyhedral oligomeric silsesquioxanes)propyl) perylene diimide (DPP) organic/inorganic hybrid laser dye, which is composed of ...
Xia Jiangying   +10 more
doaj   +1 more source

Perovskite random lasers on fiber facet

open access: yesNanophotonics, 2020
Hybrid lead halide perovskites have made great strides in next-generation photovoltaic and optoelectronic devices. Random lasers based on perovskite materials have been intensively investigated, but the miniaturization of perovskite random lasers has not
Zhang Xiao   +8 more
doaj   +1 more source

Are random lasers really random?

open access: yesJournal of Applied Physics
Randomness may be intractable and could hamper human beings from discovering underlying rules. Yet, somehow, large amounts of randomness can bring about grand patterns in nature. Randomness truly underpins human curiosity to understand the truth. Random lasers, as one of the paradigms of disordered photonics, feature chaotic lasing behavior. Due to the
Yun-Tzu Hsu   +9 more
openaire   +1 more source

A strain-gauge random laser

open access: yesAPL Materials, 2019
We describe a random laser that uses the ZnO nanorods randomly orientated on a flexible polyimide (PI) substrate as disorderedly optical scatterers to stimulate coherent random lasing actions.
Ya-Ju Lee   +4 more
doaj   +1 more source

Angle-free random laser enabled efficient photocatalytic degradation of Rhodamine 6G molecules

open access: yesAPL Materials, 2023
Efficient photocatalytic dye degradation has been realized based on the first attempt of using a random laser. In previous studies, most photocatalytic dye degradation was conducted by using broad-angular emission lamps, light-emitting diodes, and ...
Jheng-Syun You   +6 more
doaj   +1 more source

Optofluidic random laser [PDF]

open access: yesApplied Physics Letters, 2012
Random lasing is reported in a dye-circulated structured polymeric microfluidic channel. The role of disorder, which results from limited accuracy of photolithographic process, is demonstrated by the variation of the emission spectrum with local-pump position and by the extreme sensitivity to a local perturbation of the structure. Thresholds comparable
Shivakiran Bhaktha, B. N.   +3 more
openaire   +3 more sources

A simple high-speed random number generator with minimal post-processing using a random Raman fiber laser

open access: yesScientific Reports, 2021
A simple novel method for random number generation is presented, based on a random Raman fiber laser. This laser is built in a half-open cavity scheme, closed on one side by a narrow-linewidth 100 mm fiber Bragg grating.
Frédéric Monet   +2 more
doaj   +1 more source

Analysis of Random Lasing in Human Blood

open access: yesBiosensors
Random lasing (RL) is an optical phenomenon that arises from the combination of light amplification with optical feedback through multiple scattering events. In this paper, we present our investigations of RL generation from human blood samples.
Sergio de Armas-Rillo   +5 more
doaj   +1 more source

New surface plasmon polariton waveguide based on GaN nanowires

open access: yesResults in Physics, 2017
Lasers are nowadays widely used in industry, in hospitals and in many devices that we have at home. Random laser development is challenging given its high threshold and low integration.
Jun Zhu   +4 more
doaj   +1 more source

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