Comparison of temperature dependence of Fe:ZnSe laser output properties under semi-longitudinal excitation by 2.94 and ~4.04 μm radiation

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F25%3A00386320" target="_blank" >RIV/68407700:21340/25:00386320 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1007/s00340-025-08383-5" target="_blank" >https://doi.org/10.1007/s00340-025-08383-5</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s00340-025-08383-5" target="_blank" >10.1007/s00340-025-08383-5</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Comparison of temperature dependence of Fe:ZnSe laser output properties under semi-longitudinal excitation by 2.94 and ~4.04 μm radiation

Popis výsledku v původním jazyce

The temperature dependence of the laser output properties of the Fe:ZnSe single crystal was compared under its excitation by 2.94 mu m Q-switched Er:YAG laser radiation and by similar to 4.04 mu m gain-switched second Fe:ZnSe laser radiation within the same semi-longitudinal configuration. A non-selective laser cavity consisted of a flat highly reflective mirror at similar to 4-5 mu m and a concave (r = 200 mm) output coupler with a reflectivity of 88% at similar to 3.9-5.3 mu m. To keep the energy at both excitation wavelengths the same of similar to 9.4 mJ, a special filters were used for attenuation of 2.94 mu m radiation. The output energy almost doubled since the angle between pumping and generated laser radiation was reduced from similar to 20 degrees to similar to 12 degrees. The generated laser oscillation wavelength was shifted by similar to 100 nm in the case of similar to 4.04 mu m compared to excitation by 2.94 mu m radiation. The maximum laser output energy of similar to 1.7 mJ under 2.94 mu m excitation was obtained at 78 K. However, at similar to 4.04 mu m pumping, the maximum of similar to 0.5 mJ was obtained at 260 K. The efficiency at 2.94 mu m excitation decreased from similar to 33% at 78 K to similar to 12% at 340 K. At similar to 4.04 mu m radiation excitation, the efficiency increased from the laser threshold at 120 K to its maximum of similar to 9% at 260 K.

Název v anglickém jazyce

Comparison of temperature dependence of Fe:ZnSe laser output properties under semi-longitudinal excitation by 2.94 and ~4.04 μm radiation

Popis výsledku anglicky

The temperature dependence of the laser output properties of the Fe:ZnSe single crystal was compared under its excitation by 2.94 mu m Q-switched Er:YAG laser radiation and by similar to 4.04 mu m gain-switched second Fe:ZnSe laser radiation within the same semi-longitudinal configuration. A non-selective laser cavity consisted of a flat highly reflective mirror at similar to 4-5 mu m and a concave (r = 200 mm) output coupler with a reflectivity of 88% at similar to 3.9-5.3 mu m. To keep the energy at both excitation wavelengths the same of similar to 9.4 mJ, a special filters were used for attenuation of 2.94 mu m radiation. The output energy almost doubled since the angle between pumping and generated laser radiation was reduced from similar to 20 degrees to similar to 12 degrees. The generated laser oscillation wavelength was shifted by similar to 100 nm in the case of similar to 4.04 mu m compared to excitation by 2.94 mu m radiation. The maximum laser output energy of similar to 1.7 mJ under 2.94 mu m excitation was obtained at 78 K. However, at similar to 4.04 mu m pumping, the maximum of similar to 0.5 mJ was obtained at 260 K. The efficiency at 2.94 mu m excitation decreased from similar to 33% at 78 K to similar to 12% at 340 K. At similar to 4.04 mu m radiation excitation, the efficiency increased from the laser threshold at 120 K to its maximum of similar to 9% at 260 K.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10306 - Optics (including laser optics and quantum optics)

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>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

Applied Physics B: Lasers and Optics

ISSN

0946-2171

e-ISSN

1432-0649

Svazek periodika

131

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

8

Strana od-do

—

Kód UT WoS článku

001425887600001

EID výsledku v databázi Scopus

2-s2.0-85218419940