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Inne
Highly sensitive luminescent pressure sensor for vacuum measurement based on Pr3+:TeO2-ZnO-Na2O-La2O3 glasses.
Autorzy
Rok wydania
2021
Czasopismo
Numer woluminu
290
Strony
129492/1-129492/3
DOI
10.1016/j.matlet.2021.129492
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
In this paper, the initial testing of a novel non-contact optical sensor is presented for vacuum measurement. Under the excitation of 445 nm diode laser, intense green and red emission of Pr3+ ion is observed. A drastic pressure dependence of the absolute luminescence intensity and the luminescence intensity ratio of the 3P0→3H4 and 3P0→3F2 transitions are achieved between 1.47 and 997 mbar pressure at room temperature. In the studied pressure range the absolute luminescence intensity depends linearly on pressure. The strong dependence of luminescence on pressure suggests that the title materials are potentially applicable as an optical sensor for vacuum measurement.
Słowa kluczowe
Luminescence, Sensors, Vacuum measurements, Tellurite glasses, Pr3+
Adres publiczny
http://dx.doi.org/10.1016/j.matlet.2021.129492
Strona internetowa wydawcy
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