Samarium-doping concentration influence on spectroscopic parameters of Sm:YAG crystal

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F20%3A00343988" target="_blank" >RIV/68407700:21340/20:00343988 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1117/12.2544604" target="_blank" >https://doi.org/10.1117/12.2544604</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1117/12.2544604" target="_blank" >10.1117/12.2544604</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Samarium-doping concentration influence on spectroscopic parameters of Sm:YAG crystal

Popis výsledku v původním jazyce

The main goal of this work was to characterize the spectroscopic properties (absorption, fluorescence, and lifetime) of the samarium ion in the yttrium-aluminum-garnet matrix. The Sm:YAG crystals with various samarium concentrations (1, 3, 6.4, 10, and 20 at.% Sm/Y in the melt) were produced by the edge-defined, film-fed growth technique. Absorption characteristics were investigated in the spectral range of 185 - 3100 nm with detailed measurements in the near-infrared range of 1058 to 1125 nm, corresponding the energy level transition H-6(5/2) -> F-6(9/2). The results indicate that the specific absorption properties of the Sm:YAG crystal could be advantageously used to an absorption of parasitic fluorescence around 1064 nm, generated by Nd:YAG laser. Concerning emission characteristics in a visible spectral region from 520 to 850 nm, a dominant peak was observed at 618 mn In the infra-red spectral range from 850 to 1450 nm the dominant peak was found at the wavelength of 1231 nm. From the (4)G(5/2) level lifetime measurements, the dependence of lifetime on the samarium ions concentration in the YAG matrix was derived. Lifetime values ranged from 0.2 (20 at.% Sm/Y) to 2.0 ms (1.0 at.% Sm/Y). From the spectroscopic results it follows that the Sm:YAG crystal is a suitable candidate for attenuation of an unwanted spontaneous radiation at 1064 nm wavelength of the Nd:YAG laser or for light-conversion from UV to yellow-red visible region.

Název v anglickém jazyce

Samarium-doping concentration influence on spectroscopic parameters of Sm:YAG crystal

Popis výsledku anglicky

The main goal of this work was to characterize the spectroscopic properties (absorption, fluorescence, and lifetime) of the samarium ion in the yttrium-aluminum-garnet matrix. The Sm:YAG crystals with various samarium concentrations (1, 3, 6.4, 10, and 20 at.% Sm/Y in the melt) were produced by the edge-defined, film-fed growth technique. Absorption characteristics were investigated in the spectral range of 185 - 3100 nm with detailed measurements in the near-infrared range of 1058 to 1125 nm, corresponding the energy level transition H-6(5/2) -> F-6(9/2). The results indicate that the specific absorption properties of the Sm:YAG crystal could be advantageously used to an absorption of parasitic fluorescence around 1064 nm, generated by Nd:YAG laser. Concerning emission characteristics in a visible spectral region from 520 to 850 nm, a dominant peak was observed at 618 mn In the infra-red spectral range from 850 to 1450 nm the dominant peak was found at the wavelength of 1231 nm. From the (4)G(5/2) level lifetime measurements, the dependence of lifetime on the samarium ions concentration in the YAG matrix was derived. Lifetime values ranged from 0.2 (20 at.% Sm/Y) to 2.0 ms (1.0 at.% Sm/Y). From the spectroscopic results it follows that the Sm:YAG crystal is a suitable candidate for attenuation of an unwanted spontaneous radiation at 1064 nm wavelength of the Nd:YAG laser or for light-conversion from UV to yellow-red visible region.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20201 - Electrical and electronic engineering

Projekt

<a href="/cs/project/FV10124" target="_blank" >FV10124: Nové laserové tyče a disky pro moderní diodově čerpané lasery</a><br>

Návaznosti

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

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proc. SPIE 11259 Solid State Lasers XXIX: Technology and Devices

ISBN

978-1-5106-3281-3

ISSN

0277-786X

e-ISSN

—

Počet stran výsledku

6

Strana od-do

—

Název nakladatele

SPIE

Místo vydání

Bellingham

Místo konání akce

San Francisco, CA

Datum konání akce

1. 2. 2020

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000568169600048