Results 41 to 50 of about 1,991 (215)

Waveguided nematic liquid crystal random lasers

Nanophotonics, 2021
In waveguided nematic liquid crystal random lasers (NLCRLs), we realize polarized random laser (RL) emission and discover that the waveguide effect reduces the transmission loss of the RL whose polarization is parallel to the liquid crystal molecules ...
Huang Yunxi, Zhang Xiaojuan, Yu Benli, Ma Jiajun, Xie Kang, Cheng Sheng, Zhang Junxi, Hu Zhijia   +7 more
doaj   +1 more source

Triple-Wavelength Thulium-Doped Fiber Random Laser Based on Random Fiber Grating

Photonics, 2023
We demonstrate a triple-wavelength thulium-doped fiber random laser using a 10 cm long random fiber grating to provide random distributed feedback and a superimposed fiber Bragg grating as the wavelength-selective mirror.
Lewen Zhou, Yaozong Hu, Wenlong Zheng, Pengbai Xu, Zhensen Gao, Xinyong Dong   +5 more
doaj   +1 more source

The Origin of Threshold Reduction in Random Lasers Based on MoS₂/Au NPs: Charge Transfer

Photonics
Random lasers have attracted much attention in recent years owing to their advantages of a simple fabrication process, low processing cost, and material flexibility for any lasing wavelengths.
Yanyan Huo, Ke Sun, Yuqian Zhang, Weihao Liu, Junkun Wang, Yuan Wan, Lina Zhao, Tingyin Ning, Zhen Li, Yingying Ren   +9 more
doaj   +1 more source

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

Nanophotonics, 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, Li Fangjie, Lu Changgui, Cheng Zhixiang, Hu Guohua, Lu Yanqing, Cui Yiping   +6 more
doaj   +1 more source

A Self-Consistent Quantum Field Theory for Random Lasing

Applied 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

Sensors, 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, Shaohua Gao, Mingjiang Zhang, Jianzhong Zhang, Lijun Qiao, Tao Wang, Fei Gao, Xinxin Hu, Shichuan Li, Yicheng Zhu   +9 more
doaj   +1 more source

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

New 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, Takemasa Suzuki, Ryo Niyuki, Keiji Sasaki   +3 more
doaj   +1 more source

Spectrum-tailored random fiber laser towards ICF laser facility

Matter 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, Shengtao Lin, Ke Yao, Yifei Qi, Jiaojiao Zhang, Junwen Zheng, Pan Wang, Longqun Ni, Xingyu Bao, Dandan Zhou, Bo Zhang, Kaibo Xiao, Handing Xia, Rui Zhang, Ping Li, Wanguo Zheng, Zinan Wang   +16 more
doaj   +1 more source

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

Photonics
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, Luciana R. P. Kassab, Niklaus U. Wetter   +2 more
doaj   +1 more source

Dynamics of a Random Laser above Threshold [PDF]

Physical Review Letters, 2001
Physical Review ...
van Soest, G., Poelwijk, F.J., Sprik, R., Lagendijk, A.   +3 more
openaire   +3 more sources