Results 21 to 30 of about 2,413,261 (306)

Widely-tunable single-frequency diamond Raman laser.

open access: yesOptics Express, 2021
We report a diamond Raman laser that is continuously-tunable across the range from 590 nm to 625 nm producing continuous wave output with up to 8 W.
Xuezong Yang   +5 more
semanticscholar   +1 more source

Time-Gated Pulsed Raman Spectroscopy with NS Laser for Cultural Heritage

open access: yesHeritage, 2023
Raman spectroscopy, a non-destructive reference technique, is used in heritage science to directly identify materials like pigments, minerals, or binding media.
Xueshi Bai, Vincent Detalle
doaj   +1 more source

Multi-wavelength high-energy gas-filled fiber Raman laser spanning from 1.53  µm to 2.4  µm. [PDF]

open access: yesOptics Letters, 2020
In this work, we present a high-pulse-energy multi-wavelength Raman laser spanning from 1.53 µm up to 2.4 µm by employing the cascaded rotational stimulated Raman scattering effect in a 5 m hydrogen (H2)-filled nested anti-resonant fiber, pumped by a ...
A. Adamu   +7 more
semanticscholar   +1 more source

Micro-Raman spectroscopy of laser induced changes in polycrystalline CuInTe2

open access: yesResults in Optics, 2023
The result of laser irradiation on bulk polycrystalline CuInTe2 was studied using micro-Raman spectroscopy. Chalcopyrite structure was observed for the sample through X-ray diffraction (XRD) analysis.
Ananthan Mevani Raju, M.R. Venkatraman
doaj   +1 more source

Stimulated Raman Microscopy Implemented by Three Femtosecond Laser Sources [PDF]

open access: yesEPJ Web of Conferences, 2021
In this work, the implementation of a femtosecond Stimulated Raman Scattering microscope, equipped with three femtosecond laser sources: a Titanium-Sapphire (Ti:Sa), an optical parametric oscillator (OPO), and a second harmonic generator (SHG); is ...
Ranjan Rajeev   +2 more
doaj   +1 more source

Intra-Cavity Raman Laser Operating at 1193 nm Based on Graded-Index Fiber

open access: yesPhotonics, 2022
Nonlinear Raman frequency conversion is an important technical scheme to obtain special optical band lasers based on conventional ion-doped lasers. In our work, we designed an intra-cavity Raman fiber laser based on graded index fiber (GRIF) as the Raman
Chunhua Hu, Ping Sun
doaj   +1 more source

Mid-Infrared Multispectral Gaseous Stimulated Raman Scattering Laser

open access: yesApplied Sciences, 2021
We demonstrated mid-infrared gaseous stimulated Raman scattering lasers in free space. Mixed gases of hydrogen and deuterium were used as Raman gain media in one Raman cell.
Chencheng Shen   +6 more
doaj   +1 more source

Numerical optimization of the extra-cavity diamond Raman laser in the multi-phonon absorption band

open access: yesFrontiers in Physics, 2022
The physical process of stimulated Raman scattering (SRS) in the diamond and the performance of the Raman laser in the multi-phonon absorption band of 2.5–3 μm were theoretically studied.
Zhenhua Shao   +3 more
doaj   +1 more source

Passively Q-Switched KTA Cascaded Raman Laser with 234 and 671 cm−1 Shifts

open access: yesApplied Sciences, 2021
A compact KTA cascaded Raman system driven by a passively Q-switched Nd:YAG/Cr4+:YAG laser at 1064 nm was demonstrated for the first time. The output spectra with different cavity lengths were measured.
Zhi Xie   +7 more
doaj   +1 more source

Raman Laser Switching Induced by Cascaded Light Scattering [PDF]

open access: yesLaser & Photonics reviews, 2019
It is shown that, in multimode Raman lasers, cascaded light scattering (CLS) not only extends the optical frequency range, but can also modulate the laser dynamics.
S. Kasumie   +5 more
semanticscholar   +1 more source

Home - About - Disclaimer - Privacy