A multiplexed two-wave mixing interferometer for laser ultrasonic measurements of material anisotropy

2002 ◽  
Author(s):  
Yi Zhou
Keyword(s):  
Wave Mixing ◽  
Material Anisotropy ◽  
Laser Ultrasonic ◽  
Ultrasonic Measurements ◽  
Two Wave Mixing

Homodyne detection of ultrasonic surface displacements using two-wave mixing in photorefractive polymers

1999 ◽  
Author(s):  
Marvin B. Klein ◽  
Gerald D. Bacher ◽  
Anders Grunnet-Jepsen ◽  
Daniel Wright ◽  
William E. Moerner
Keyword(s):  
Wave Mixing ◽  
Homodyne Detection ◽  
Surface Displacements ◽  
Photorefractive Polymers ◽  
Two Wave Mixing

Impact of donor compensation ratio on photorefractive two–wave mixing dynamics in multiple quantum wells structures

2014 ◽  
Vol 23 (03) ◽  
pp. 1450029 ◽  
Author(s):  
Błażej Jabłoński
Keyword(s):  
Quantum Wells ◽  
Concentration Ratio ◽  
Multiple Quantum Wells ◽  
Multiple Quantum ◽  
Wave Mixing ◽  
Compensation Ratio ◽  
Mixing Dynamics ◽  
Two Wave Mixing ◽  
Charge Field ◽  
The Impact

The kind of defects and their concentration have a significant impact on photorefractive phenomena taking place within the structure of semi-insulating GaAs / AlGaAs multiple quantum wells. In this paper, the impact of donor-to-acceptor concentration ratio on the grating in photorefractive two-waves mixing was examined. The formation of the space charge field for different defect concentrations as well as different external electric field intensities are analyzed.

Nondegenerate two-wave mixing in GdAlO_3:Cr^3+

1991 ◽  
Vol 16 (7) ◽  
pp. 452 ◽  
Author(s):  
J. C. Penaforte ◽  
E. A. Gouveia ◽  
S. C. Zilio
Keyword(s):  
Wave Mixing ◽  
Two Wave Mixing
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