Low temperature delayed recombination decay in scintillating garnets

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F15%3A00235786" target="_blank" >RIV/68407700:21340/15:00235786 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.optmat.2014.12.011" target="_blank" >http://dx.doi.org/10.1016/j.optmat.2014.12.011</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.optmat.2014.12.011" target="_blank" >10.1016/j.optmat.2014.12.011</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Low temperature delayed recombination decay in scintillating garnets

Popis výsledku v původním jazyce

We study the temperature dependence of delayed recombination decay intensity in a variety of scintillating crystals based on garnet hosts in a wide temperature range 8?500 K. Previous work on several scintillating materials based on silicate hosts showednonzero constant signal from very low temperatures up to about 120 K. This observation supported a previously suggested hypothesis on low temperature losses of fast scintillation light due to quantum tunneling between the activator and nearby traps. Ingarnets, the subject of the present article, we observe practically constant signal in the entire monitored temperature range. We thus further test and confirm the quantum tunneling hypothesis in a different class of scintillating materials. We also showthat there is no thermal ionization of the activator?s excited state in all materials studied, well above room temperature.

Název v anglickém jazyce

Low temperature delayed recombination decay in scintillating garnets

Popis výsledku anglicky

We study the temperature dependence of delayed recombination decay intensity in a variety of scintillating crystals based on garnet hosts in a wide temperature range 8?500 K. Previous work on several scintillating materials based on silicate hosts showednonzero constant signal from very low temperatures up to about 120 K. This observation supported a previously suggested hypothesis on low temperature losses of fast scintillation light due to quantum tunneling between the activator and nearby traps. Ingarnets, the subject of the present article, we observe practically constant signal in the entire monitored temperature range. We thus further test and confirm the quantum tunneling hypothesis in a different class of scintillating materials. We also showthat there is no thermal ionization of the activator?s excited state in all materials studied, well above room temperature.

Druh

O - Ostatní výsledky

CEP obor

BH - Optika, masery a lasery

OECD FORD obor

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Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2015

Kód důvěrnosti údajů

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