Temperature Dependence of Cr:ZnSe Active Medium Spectral and Laser Properties
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F19%3A00334049" target="_blank" >RIV/68407700:21340/19:00334049 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1117/12.2520722" target="_blank" >http://dx.doi.org/10.1117/12.2520722</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1117/12.2520722" target="_blank" >10.1117/12.2520722</a>
Alternative languages
Result language
angličtina
Original language name
Temperature Dependence of Cr:ZnSe Active Medium Spectral and Laser Properties
Original language description
The interest in the development of coherent mid-infrared radiation sources is caused by its potential application in medicine, spectroscopy, laser remote sensing of the atmosphere, metrology, and in many other fields of interest. This study presents temperature dependence of spectral properties of Cr:ZnSe laser active medium in range of 78-380 K. The temperature influence on the absorption, fluorescence and oscillation spectra were investigated in detail. While heating the Cr:ZnSe crystal from 78K to 380 K, the absorption peak maximum has shifted for 65nm toward a shorter wavelength from 1813nm to 1748nm together with the absorption spectrum broadening from 262nm to 373nm and decreasing the absorption coefficient. The FWHM of the fluorescence spectrum was broadened from 280nm (2030-2310 nm) to 488nm (1896-2384 nm) when the temperature of active medium was increasing. Pulsed laser operation from Cr:ZnSe active medium longitudinally pumped by an Er:YLF laser at 1735nm was investigated. The temperature dependence of Cr:ZnSe laser output energy and oscillation spectrum were studied. The highest output energy was 3.84mJ at 78K which together with the FWHM pulse duration of 200 us corresponds to the power of 19mW. The laser radiation emission was observed at three wavelength bands which intensity was changing during the increase of crystal temperature. However, the oscillation band around wavelength of ~2360nm occurred for all measured temperatures. As a result, by cooling the system, the wavelength of maximum absorption is being shifted to the longer wavelengths as well as the wavelength of maximum fluorescence spectrum intensity.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
20201 - Electrical and electronic engineering
Result continuities
Project
<a href="/en/project/GA18-11954S" target="_blank" >GA18-11954S: Optimization of the solid-state laser active materials for spectral range from near- up to mid-infrared</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Proc. SPIE 11033, High-Power, High-Energy, and High-Intensity Laser Technology IV
ISBN
978-1-5106-2732-1
ISSN
0277-786X
e-ISSN
1996-756X
Number of pages
8
Pages from-to
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Publisher name
SPIE
Place of publication
Bellingham
Event location
Praha
Event date
Apr 1, 2019
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000483017000018