1.2 μm and 1.5 μm near-infrared photoluminescence and visible upconversion photoluminescence in GeGaS:Er3+/Ho3+ glasses under 980 nm excitation

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F18%3A39912635" target="_blank" >RIV/00216275:25310/18:39912635 - isvavai.cz</a>
Alternative codes found
RIV/68378271:_____/18:00500927 RIV/61389013:_____/18:00500927
Result on the web
<a href="https://doi.org/10.1007/s10854-018-9826-1" target="_blank" >https://doi.org/10.1007/s10854-018-9826-1</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s10854-018-9826-1" target="_blank" >10.1007/s10854-018-9826-1</a>

Result language
angličtina
Original language name
1.2 μm and 1.5 μm near-infrared photoluminescence and visible upconversion photoluminescence in GeGaS:Er3+/Ho3+ glasses under 980 nm excitation
Original language description
We report on the Er3+↔Ho3+ optical interaction on the 1.2 and 1.5 μm near-infrared and visible upconversion photoluminescence in Er3+/Ho3+-co-doped GeGaS glasses at pumping wavelength of 980 nm. Since the 980 nm pumping wavelength is off resonance for Ho3+ intra-4f electronic transitions, we have utilized the Er3+ sensitization with observed efficient Er3+→Ho3+ energy transfer. As a result, the Ho3+ 1.2 μm emission in Er3+/Ho3+-co-doped GeGaS glass has been notably improved while the intense Er3+ 1.5 μm emission has been maintained. The visible upconversion photoluminescence has been observed at 530, 550 and 660 nm and was assigned mainly to intra-4f electronic transitions within Er3+ ions. The overall upconversion photoluminescence intensity significantly increases by addition of Ho3+ ions into GeGaS:Er glass which may be explained by energy transfer processes between Er3+ and Ho3+ ions leading to population of the Er3+ upper energy levels. The Ho3+ 1.2 μm and Er3+ 1.5 μm emission has much potential in telecommunication while the intense visible upconversion photoluminescence in sensing.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10402 - Inorganic and nuclear chemistry

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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