Results 11 to 20 of about 43,952 (314)

Te Film as a Saturable Absorber for the Mid-Infrared Er3+-Doped ZBLAN Fiber Laser

Frontiers in Physics, 2022
We demonstrate a Q-switched Er3+-doped ZBLAN fiber laser at 2.8 µm mid-infrared (mid-IR) region achieved by adopting Te as the saturable absorber mirror (SAM).
Min Zhang, Liu Kang, Zhijian Ma, Peiguang Yan, Shaodong Hou   +4 more
doaj   +1 more source

A Palette of Efficient and Stable Far-Red and NIR Dye Lasers

Applied Sciences, 2020
The disposal of long-wavelength-emitting sources is of paramount relevance in technology and biophotonics due to the low interference with the surroundings that these kinds of far-red and near-infrared radiations hold.
Edurne Avellanal-Zaballa, Leire Gartzia-Rivero, Jorge Bañuelos, Inmaculada García-Moreno, Antonia R. Agarrabeitia, Eduardo Peña-Cabrera, Maria Jose Ortiz   +6 more
doaj   +1 more source

FAR INFRARED LASER SPECTROSCOPY [PDF]

Le Journal de Physique IV, 1991
No abstract ...
Brunel, L.-C., Barra, A., Martinez Garcia, Gines, Robert, J.   +3 more
openaire   +2 more sources

Rainbow Archimedean spiral emission from optical fibres

Scientific Reports, 2021
We demonstrate a new practical approach for generating multicolour spiral-shaped beams. It makes use of a standard silica optical fibre, combined with a tilted input laser beam.
F. Mangini, M. Ferraro, M. Zitelli, V. Kalashnikov, A. Niang, T. Mansuryan, F. Frezza, A. Tonello, V. Couderc, A. B. Aceves, S. Wabnitz   +10 more
doaj   +1 more source

Solving the spectral gap problem with a four-mirror bow-tie cavity in waveguide free-electron laser oscillators

Scientific Reports, 2023
The generation of intense coherent radiation pulses in the far-infrared and terahertz regimes is of considerable interest to the free-electron laser (FEL) radiation user community.
Mengqi Xia, Yuanfang Xu, Zhouyu Zhao, Heting Li   +3 more
doaj   +1 more source

High-Power Ho-Doped Sesquioxide Ceramic Laser In-Band Pumped by a Tm-Doped All-Fiber MOPA

IEEE Photonics Journal, 2018
We report on a high-power Ho:Y2O3 ceramic laser in-band pumped by a homemade Tm-doped all-fiber MOPA at 1941 nm. The Ho:Y2O3 ceramics fabricated by vacuum sintering and hot isostatic pressing present uniform ceramic grain and high optical homogeneity ...
Yongguang Zhao, Jun Wang, Weichao Yao, Zhenhua Shao, Chongfeng Shen, Danlei Yin, Ying Wang, Peng Liu, Wei Zhou, Dingyuan Tang, Deyuan Shen   +10 more
doaj   +1 more source

A tunable far infrared laser [PDF]

IEEE Journal of Quantum Electronics, 1984
A continuously tunable far infrared (FIR) laser has been demonstrated; experimental results are presented. A high-pressure (10-12 atm) continuously tunable CO 2 TE laser is used to pump Raman transitions in CH 3 F; the generation of continuously tunable radiation in the 250-300 \mu m wavelength range is reported.
B. Danly, S. Evangelides, R. Temkin, B. Lax   +3 more
openaire   +1 more source

Self-mixing interferometry and near-field nanoscopy in quantum cascade random lasers at terahertz frequencies

Nanophotonics, 2021
We demonstrate that electrically pumped random laser resonators, operating at terahertz (THz) frequencies, and comprising a quantum cascade laser heterostructure, can operate as sensitive photodetectors through the self-mixing effect.
Reichel Kimberly S., Pogna Eva Arianna Aurelia, Biasco Simone, Viti Leonardo, Di Gaspare Alessandra, Beere Harvey E., Ritchie David A., Vitiello Miriam S.   +7 more
doaj   +1 more source

Effect of 10.6 μm laser moxibustion on inflammation in diabetic peripheral neuropathy rats

Frontiers in Endocrinology, 2023
Diabetic peripheral neuropathy (DPN) is the main cause of disability in diabetes patients but the efficacy of available drugs is poor. Moxibustion is an adjunctive treatment for DPN that can reduce symptoms.
Yue Yin, Lina Wang, Ling Zhao, Lin Lin, Xueyong Shen, Xueyong Shen   +5 more
doaj   +1 more source

Tunable far infrared laser spectrometers [PDF]

Review of Scientific Instruments, 1991
The state of the art in far infrared (FIR) spectroscopy is reviewed. The development of tunable, coherent FIR radiation sources is discussed. Applications of tunable FIR laser spectrometers for measurement of rotational spectra and dipole moments of molecular ions and free radicals, vibration-rotation-tunneling (VRT) spectra of weakly bound complexes ...
Blake, G. A., Laughlin, K. B., Cohen, R. C., Busarow, K. L., Gwo, D.-H., Schmuttenmaer, C. A., Steyert, D. W., Saykally, R. J.   +7 more
openaire   +2 more sources