Mid-infrared laser generation at 4.7-5.1 μm of the Cr,Fe:Zn1-xMgxSe (x ~ 0.4) single crystal under various excitation wavelengths

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F22%3A00361795" target="_blank" >RIV/68407700:21340/22:00361795 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1117/12.2624405" target="_blank" >https://doi.org/10.1117/12.2624405</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1117/12.2624405" target="_blank" >10.1117/12.2624405</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Mid-infrared laser generation at 4.7-5.1 μm of the Cr,Fe:Zn1-xMgxSe (x ~ 0.4) single crystal under various excitation wavelengths

Popis výsledku v původním jazyce

The cryogenically cooled Cr2+,Fe2+:Zn1-xMgxSe (x approximate to 0.4) single crystal with the thickness of similar to 3.6 mm was investigated under two different excitation wavelengths of the Q-switched Er:YAG laser (lambda approximate to 2.94 mu m, Eout approximate to 50 mJ) and by the gain-switched Fe:ZnSe laser (lambda approximate to 4.05 mu m, E-out approximate to 9 mJ). Because of relatively low Fe2+ ions concentration, the absorption coefficients at 78 K and 300 K ranged between 3 cm(-1) and 2 cm(-1) for both excitation wavelengths used. Absorption and fluorescence spectra, fluorescence lifetime as well as laser output characteristics were measured at low temperatures (78-180 K). The Cr,Fe:Zn1-xMgxSe (x approximate to 0.4) laser system was able to generate laser radiation at similar to 5 mu m at liquid nitrogen (LN2) temperature of 78 K under both similar to 2.94 mu m and similar to 4.05 mu m laser excitation. The laser oscillation wavelength was shifted up to similar to 5 mu m compared with a typical Fe:ZnSe output (similar to 4.0-4.1 mu m at LN2 temperature) due to the high amount of magnesium in the host material. Moreover, the oscillation wavelength was shifted even farther by increasing temperature of the active medium. The laser output energy was similar to 1.34 mJ and similar to 0.14 mJ for the similar to 2.94 mu m and similar to 4.05 mu m laser excitation, respectively. The beam profile structure was approximately fundamental for both excitation wavelengths used. The results present a novel mid-infrared 4.7-5.1 mu m coherent laser source based on cubic A(II)B(VI) matrix using direct excitation at wavelengths of similar to 2.94 mu m or similar to 4.05 mu m.

Název v anglickém jazyce

Mid-infrared laser generation at 4.7-5.1 μm of the Cr,Fe:Zn1-xMgxSe (x ~ 0.4) single crystal under various excitation wavelengths

Popis výsledku anglicky

The cryogenically cooled Cr2+,Fe2+:Zn1-xMgxSe (x approximate to 0.4) single crystal with the thickness of similar to 3.6 mm was investigated under two different excitation wavelengths of the Q-switched Er:YAG laser (lambda approximate to 2.94 mu m, Eout approximate to 50 mJ) and by the gain-switched Fe:ZnSe laser (lambda approximate to 4.05 mu m, E-out approximate to 9 mJ). Because of relatively low Fe2+ ions concentration, the absorption coefficients at 78 K and 300 K ranged between 3 cm(-1) and 2 cm(-1) for both excitation wavelengths used. Absorption and fluorescence spectra, fluorescence lifetime as well as laser output characteristics were measured at low temperatures (78-180 K). The Cr,Fe:Zn1-xMgxSe (x approximate to 0.4) laser system was able to generate laser radiation at similar to 5 mu m at liquid nitrogen (LN2) temperature of 78 K under both similar to 2.94 mu m and similar to 4.05 mu m laser excitation. The laser oscillation wavelength was shifted up to similar to 5 mu m compared with a typical Fe:ZnSe output (similar to 4.0-4.1 mu m at LN2 temperature) due to the high amount of magnesium in the host material. Moreover, the oscillation wavelength was shifted even farther by increasing temperature of the active medium. The laser output energy was similar to 1.34 mJ and similar to 0.14 mJ for the similar to 2.94 mu m and similar to 4.05 mu m laser excitation, respectively. The beam profile structure was approximately fundamental for both excitation wavelengths used. The results present a novel mid-infrared 4.7-5.1 mu m coherent laser source based on cubic A(II)B(VI) matrix using direct excitation at wavelengths of similar to 2.94 mu m or similar to 4.05 mu m.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20201 - Electrical and electronic engineering

Projekt

<a href="/cs/project/EF16_019%2F0000778" target="_blank" >EF16_019/0000778: Centrum pokročilých aplikovaných přírodních věd</a><br>

Návaznosti

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

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proc. SPIE 11980, Solid State Lasers XXXI: Technology and Devices

ISBN

978-1-5106-4831-9

ISSN

0277-786X

e-ISSN

1996-756X

Počet stran výsledku

6

Strana od-do

—

Název nakladatele

SPIE

Místo vydání

Bellingham (stát Washington)

Místo konání akce

San Francisco, CA

Datum konání akce

22. 1. 2022

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000842964800024