Comparison of gain-switched operated Cr2+and Fe2+ions co-doped Zn1-xMnxSe and Zn1-xMgxSe (x ~ 0.3) lasers in mid-IR under different excitation wavelengths

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F21%3A00352562" target="_blank" >RIV/68407700:21340/21:00352562 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1117/12.2589224" target="_blank" >https://doi.org/10.1117/12.2589224</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1117/12.2589224" target="_blank" >10.1117/12.2589224</a>

Result language

angličtina

Original language name

Comparison of gain-switched operated Cr2+and Fe2+ions co-doped Zn1-xMnxSe and Zn1-xMgxSe (x ~ 0.3) lasers in mid-IR under different excitation wavelengths

Original language description

Two different mid-infrared (mid-IR) crystalline laser active media of Zn1-xMnxSe and Zn1-xMgxSe with similar manganese or magnesium ions amount of x ~ 0.3 co-doped by divalent chromium (Cr2+) and iron (Fe2+) ions were investigated at cryogenic temperatures and compared for different excitation wavelengths used. Both single crystals were synthesized by high pressure Bridgman method and their thickness were 2.6 mm and 5 mm, respectively. Crystals were investigated under three excitation wavelengths of the Q-switched Er3+:YLF laser at ~1.73 μm, Q-switched Er3+:YAG laser at ~2.94 μm, and the gain-switched Fe2+:ZnSe laser operated at liquid nitrogen temperature of 78 K at a wavelength of ~4.05 μm. Spectroscopic and laser output characteristics were measured: absorption and fluorescence spectra, laser output pulse duration, mean output energy, and laser oscillation spectra. Both laser systems were able to generate radiation by Cr2+ or by Fe2+ ions under direct excitation, or by Fe2+ ions via the Cr2+ -> Fe2+ energy transfer depending on the excitation wavelength and the output coupler conditions. Fe2+ ions in Cr2+,Fe2+:Zn1-xMnxSe and Cr2+,Fe2+:Zn1-xMgxSe (x ~ 0.3) laser systems at 78 K pumped by Er3+:YLF laser radiation at ~1.73 μm via the energy transfer mechanism generated laser radiation at the wavelengths of ~4.4 μm and ~4.8 μm at 78 K, respectively. Obtained results have shown a possibility of developing novel coherent laser systems in mid-IR region (~2.3 - 2.5 μm and ~4.4 - 4.9 μm) based on AIIBVI matrices. Thus, possibility to excite the Fe2+ active ions in both samples directly by ~2.94 μm as well as ~4.05 μm radiation or eventually in a compact way through the Cr2+ -> Fe2+ ions energy transfer-based mechanism by ~1.73 μm radiation was demonstrated.

Czech name

—

Czech description

—

Type

D - Article in proceedings

CEP classification

—

OECD FORD branch

20201 - Electrical and electronic engineering

Project

<a href="/en/project/EF16_019%2F0000778" target="_blank" >EF16_019/0000778: Center for advanced applied science</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Publication year

2021

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

Proc. SPIE 11777, High Power Lasers and Applications

ISBN

978-1-5106-4388-8

ISSN

0277-786X

e-ISSN

1996-756X

Number of pages

10

Pages from-to

—

Publisher name

SPIE

Place of publication

Bellingham (stát Washington)

Event location

Praha

Event date

Apr 19, 2021

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

000697703200013