Comprehensive Analysis of the Temperature Dependence of Fe:ZnSe, Fe:ZnMnSe, and Fe:ZnMgSe Absorption Over the 4 – 400 K Range
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F25%3A00386404" target="_blank" >RIV/68407700:21340/25:00386404 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1117/12.3073305" target="_blank" >https://doi.org/10.1117/12.3073305</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1117/12.3073305" target="_blank" >10.1117/12.3073305</a>
Alternative languages
Result language
angličtina
Original language name
Comprehensive Analysis of the Temperature Dependence of Fe:ZnSe, Fe:ZnMnSe, and Fe:ZnMgSe Absorption Over the 4 – 400 K Range
Original language description
The temperature dependence of Fe(2)⁺ ions in single crystals ZnSe, Zn1-xMnxSe (x ~ 0.2), and Cd1-xMnxTe (x ~ 0.375) was systematically investigated over a wide temperature range of 4-400 K, allowing for a detailed comparative analysis. The study focused on the structure of individual absorption peaks, examining temperature-induced variations in both the absolute values of the absorption coefficient and the full width at half maximum (FWHM) of the peaks. Two cryostats were used: one cooled with liquid helium (4-300 K) and the other with liquid nitrogen (77-400 K). Both were equipped with CaF2 windows to facilitate mid-infrared transmission measurements. The absorption spectrum reveals distinct line features that gradually broaden as the host temperature increases. At 4 K, the absorption spectrum of Fe:ZnSe exhibits several sharp zero-phonon lines corresponding to purely electronic transitions that occur without coupling to the lattice vibrations of the ZnSe host. On the contrary, much of the remaining absorption structure arises from phonon-assisted transitions, which are broadened because of phonon dispersion. Notably, these phonon-assisted transitions become the dominant contribution to the absorption spectrum at temperatures exceeding 30-40 K. In comparison to ZnSe, phonon-assisted transitions were dominant in the mixed host even at very low temperatures.
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/GA25-16282S" target="_blank" >GA25-16282S: Fe-doped solids: The key to efficient generation of high-power laser radiation in the mid-infrared region</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2025
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 13698, Photonics, Devices, and Systems IX
ISBN
978-1-5106-9345-6
ISSN
0277-786X
e-ISSN
1996-756X
Number of pages
8
Pages from-to
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Publisher name
The International Society for Optical Engineering (SPIE)
Place of publication
Bellingham WA
Event location
Prague
Event date
Jun 9, 2025
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
001723559900028