Oscillatory mode coupling and electrically strobed gratings in photorefractive quantum-well diodes
Optics Letters, Vol. 23, Issue 1, pp. 49-51 (1998)
http://dx.doi.org/10.1364/OL.23.000049
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Abstract
Oscillatory mode coupling between two coherent laser beams is produced when an interference pattern moves against a quasi-static electrically strobed grating in a photorefractive AlGaAs/GaAs multiple-quantum-well diode operated in the quantum-confined Stark geometry. The oscillation frequency is equal to the frequency difference between the two laser beams and provides a method to measure high-frequency Doppler shifts or large surface displacements for laser-based ultrasound. Combined photorefractive gains (normally forbidden by symmetry in the Stark geometry) and absorptive gains approach 1200cm-1during two-wave mixing using moving gratings.
© 1998 Optical Society of America
[America ]
OCIS Codes
(050.2770) Diffraction and gratings : Gratings
(160.5320) Materials : Photorefractive materials
(190.7070) Nonlinear optics : Two-wave mixing
(270.0270) Quantum optics : Quantum optics
Citation
I. Lahiri, D. D. Nolte, M. R. Melloch, and M. B. Klein, "Oscillatory mode coupling and electrically strobed gratings in photorefractive quantum-well diodes," Opt. Lett. 23, 49-51 (1998)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-23-1-49
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