Spectroscopic investigations of thulium doped YAG and YAP crystals between 77 K and 300 K for short-wavelength infrared lasers

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F18%3A00492728" target="_blank" >RIV/68378271:_____/18:00492728 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.jlumin.2018.05.070" target="_blank" >http://dx.doi.org/10.1016/j.jlumin.2018.05.070</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jlumin.2018.05.070" target="_blank" >10.1016/j.jlumin.2018.05.070</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Spectroscopic investigations of thulium doped YAG and YAP crystals between 77 K and 300 K for short-wavelength infrared lasers

Popis výsledku v původním jazyce

We present detailed measurements of laser relevant cross sections of thulium doped yttrium-aluminum-garnet (Tm:YAG) and yttrium-aluminum-perovskite (Tm: YAP), including the absorption cross sections for the H-3(6) to H-3(3) transition near 800 nm, and the absorption and emission cross sections for the transitions between the H-3(6) and F-3(4) manifolds in the short-wavelength infrared region. For Tm: YAP we present data for all polarization axes. The measurements were carried out at temperatures ranging from 80 K to 300 K. Furthermore, re-absorption free fluorescence lifetimes of the F-3(4) to H-3(6) transition at 77 K, 200 K and 295 K were obtained using the pinhole method. We observed a significant enhancement of the fluorescence lifetime when cooling from room temperature to 77 K. The lifetime was increased from 9.42 ms to 15.22 ms in Tm: YAG and from 3.81 ms to 4.93 ms in Tm: YAP. This indicates that lifetime quenching is present at room temperature, which can be overcome, at least partially, by cryogenic cooling.

Název v anglickém jazyce

Spectroscopic investigations of thulium doped YAG and YAP crystals between 77 K and 300 K for short-wavelength infrared lasers

Popis výsledku anglicky

We present detailed measurements of laser relevant cross sections of thulium doped yttrium-aluminum-garnet (Tm:YAG) and yttrium-aluminum-perovskite (Tm: YAP), including the absorption cross sections for the H-3(6) to H-3(3) transition near 800 nm, and the absorption and emission cross sections for the transitions between the H-3(6) and F-3(4) manifolds in the short-wavelength infrared region. For Tm: YAP we present data for all polarization axes. The measurements were carried out at temperatures ranging from 80 K to 300 K. Furthermore, re-absorption free fluorescence lifetimes of the F-3(4) to H-3(6) transition at 77 K, 200 K and 295 K were obtained using the pinhole method. We observed a significant enhancement of the fluorescence lifetime when cooling from room temperature to 77 K. The lifetime was increased from 9.42 ms to 15.22 ms in Tm: YAG and from 3.81 ms to 4.93 ms in Tm: YAP. This indicates that lifetime quenching is present at room temperature, which can be overcome, at least partially, by cryogenic cooling.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název periodika

Journal of Luminescence

ISSN

0022-2313

e-ISSN

—

Svazek periodika

202

Číslo periodika v rámci svazku

Oct

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

11

Strana od-do

427-437

Kód UT WoS článku

000437005000057

EID výsledku v databázi Scopus

2-s2.0-85048271778