LiNbO3–Yb3+ crystal as a material for optical temperature sensor
- Авторлар: Demirkhanyan H.1, Demirkhanyan G.1,2, Kokanyan E.1,2
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Мекемелер:
- Armenian State Abovyan Pedagogical University
- Institute for Physical Research, NAS of Armenia
- Шығарылым: Том 52, № 4 (2017)
- Беттер: 381-386
- Бөлім: Article
- URL: https://journals.rcsi.science/1068-3372/article/view/228527
- DOI: https://doi.org/10.3103/S1068337217040119
- ID: 228527
Дәйексөз келтіру
Аннотация
The method of optical determination of temperature based on cooperative luminescence in the LiNbO3 crystals doped with rare earth ions is proposed. As a temperature-dependent measurable characteristic, the quantum yield of luminescence is considered taking into account the processes of nonradiative redistribution of the electron excitation energy in the impurity subsystem. It is shown that the LiNbO3–Yb3+ crystals can be used as a material for optical temperature sensors in the temperature range of 200–500 K with the average sensitivity of 0.12%K–1.
Негізгі сөздер
Авторлар туралы
H. Demirkhanyan
Armenian State Abovyan Pedagogical University
Хат алмасуға жауапты Автор.
Email: demirkhanyan.hasmik@aspu.am
Армения, Yerevan
G. Demirkhanyan
Armenian State Abovyan Pedagogical University; Institute for Physical Research, NAS of Armenia
Email: demirkhanyan.hasmik@aspu.am
Армения, Yerevan; Ashtarak
E. Kokanyan
Armenian State Abovyan Pedagogical University; Institute for Physical Research, NAS of Armenia
Email: demirkhanyan.hasmik@aspu.am
Армения, Yerevan; Ashtarak