Monoclinic zinc monotungstate Yb3+,Li+:ZnWO4: Part II. Polarized spectroscopy and laser operation

2021 ◽  
Vol 231 ◽  
pp. 117811
Author(s):  
Anna Volokitina ◽  
Samuel Paul David ◽  
Pavel Loiko ◽  
Kirill Subbotin ◽  
Anatoly Titov ◽  
...  
2021 ◽  
Vol 2086 (1) ◽  
pp. 012175
Author(s):  
A Volokitina ◽  
P Loiko ◽  
E Dunina ◽  
A Kornienko ◽  
J M Serres ◽  
...  

Abstract Polarization anisotropy of luminescent properties of europium (III) ions in low-symmetry C2 sites is studied using monoclinic (sp. gr. C2/c) tungstate crystal KY(WO4)2. The 5D0 → 7FJ (where J = 0…6) transitions are characterized for the principal light polarizations. Polarization selection rules for the magnetic dipole 5D0 → 7F1 transition are presented. The stimulated-emission cross-sections for Eu3+ ions relevant for laser operation are determined.


Author(s):  
Lauren Guillemot ◽  
Pavel Loiko ◽  
Esrom Kifle ◽  
Alain Braud ◽  
Jean-Louis Doualan ◽  
...  

1994 ◽  
Vol 04 (C4) ◽  
pp. C4-573-C4-577 ◽  
Author(s):  
Y. KALISKY ◽  
S. R. ROTMAN ◽  
G. BOULON ◽  
C. PEDRINI ◽  
A. BRENIER

Author(s):  
A.C.T. Quah ◽  
J.C.H. Phang ◽  
L.S. Koh ◽  
S.H. Tan ◽  
C.M. Chua

Abstract This paper describes a pulsed laser induced digital signal integration algorithm for pulsed laser operation that is compatible with existing ac-coupled and dc-coupled detection systems for fault localization. This algorithm enhances laser induced detection sensitivity without a lock-in amplifier. The best detection sensitivity is achieved at a pulsing frequency range between 500 Hz to 1.5 kHz. Within this frequency range, the algorithm is capable of achieving more than 9 times enhancement in detection sensitivity.


Author(s):  
Hiroaki Nakao ◽  
Akira Shirakawa ◽  
Ken-ichi Ueda ◽  
Hideki Yagi ◽  
Takagimi Yanagitani

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