scholarly journals Infrared-absorption coefficient for shallow donors in a quantum well

1991 ◽  
Vol 43 (11) ◽  
pp. 9265-9268 ◽  
Author(s):  
P. D. Emmel ◽  
J. R. Leite ◽  
I. C. da Cunha Lima
Keyword(s):  
Quantum Well ◽  
Absorption Coefficient ◽  
Infrared Absorption ◽  
Shallow Donors

Intersubband Infrared Absorption in a GaAs/Al0.3Ga0.7As Multiple Quantum Well

1992 ◽  
pp. 287-297
Author(s):  
M. O. Manasreh ◽  
F. Szmulowicz ◽  
T. Vaughan ◽  
K. R. Evans ◽  
C. E. Stutz ◽  
...  
Keyword(s):  
Quantum Well ◽  
Infrared Absorption ◽  
Multiple Quantum Well ◽  
Multiple Quantum

Light-induced absorption and optical damage in Sc-, Mg-, and Zn-doped near-stoichiometric LiNbO3

2018 ◽  
Vol 27 (03) ◽  
pp. 1850030 ◽  
Author(s):  
Junsheng Li ◽  
Youwen Liu ◽  
Huijie Zhang ◽  
Liangzun Tang ◽  
Chongjun He
Keyword(s):  
Steady State ◽  
Lithium Niobate ◽  
Absorption Coefficient ◽  
Ultraviolet Light ◽  
Infrared Absorption ◽  
Doping Level ◽  
Doping Concentration ◽  
Weak Absorption ◽  
Induced Absorption ◽  
Infrared Absorption Spectra

By measuring the ultraviolet-light-induced absorption in Sc-, Mg- and Zn-doped near-stoichiometric lithium niobate (LiNbO[Formula: see text], we find that the steady-state ultraviolet-light-induced absorption coefficient changes with respect to the doping concentration. There is a strong ultraviolet-light-induced absorption when doping concentration is below its photorefractive threshold and a really weak absorption when the crystal is highly doped. We also use OH[Formula: see text] infrared absorption spectra and the transmitted light spot distortion method to verify the result. Thus, we can determine if the doping level in these doped near-stoichiometric LiNbO3 crystals is above or below their photorefractive threshold by measuring the ultraviolet-light-induced absorption.

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