Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE

Two-wave mixing in stark geometry photorefractive quantum wells under a magnetic field

Yanfeng Zhang, Jiaming Sun, Manhong Zhang, Zhiguo Zhang, Qi Zhong Huang, Junming Zhou

Published Nov 9, 1999• 0 citations
Publisher

Abstract

Using a new method for measuring photorefractive two-wave mixing gain, we present the first experimental demonstration of nonreciprocal energy transfer during two-wave mixing under an external magnetic field. The nonreciprocal energy transfer is observed with mixing gains approaching 164 cm-1 exhibiting the characters of nonlinearity and saturation. A simple model of negative differential mobility and ultra fast carriers lifetime was proposed to explain these results.

DOI
10.1117/12.369425

Related papers

Two-wave mixing in Stark geometry photorefractive quantum wells under a magnetic field

Y. F. Zhang, J. M. Sun, M. H. Zhang +3 more

Using a modified method for measuring photorefractive two-wave mixing gain, we presented the experimental demonstration of nonreciprocal energy transfer during two-wave mixing under an external magnetic field. The nonreciprocal energy transfer is observed with mixing gain approaching 164 cm−1 and showed the characteristics of nonlinearity and saturation. A simple model of resonant tunneling and ultrafast carrier lifetime was proposed to explain these results.

Applied Physics Letters•Apr 17, 2000•2 citations

Two-wave mixing in Stark geometry photorefractive quantum wells using moving gratings

I. Lahiri, Robert M. Brubaker, David D. Nolte +1 more

Nonreciprocal energy transfer between two coherent laser beams during two-wave mixing requires a photorefractive phase shift between the interference pattern and the resulting space charge. The symmetry of the Stark geometry photorefractive quantum wells forbids a phase shift using either dc or ac fields. We present the first experimental demonstration of nonreciprocal energy transfer during two-wave mixing using moving gratings. Optical energy exchange is observed in photorefractive p-i-n quantum well diodes with photorefractive gains approaching 1000 cm−1 and exhibiting complex spatio-temporal dynamics.

Applied Physics Letters•Nov 25, 1996•8 citations

Transient dynamics during two-wave mixing in photorefractive quantum well diodes using moving gratings

I. Lahiri, L. J. Pyrak‐Nolte, David D. Nolte +1 more

The temporal dynamics of photorefractive and absorptive gains during two-wave mixing in Stark geometry photorefractive quantum wells are investigated using moving gratings to break the symmetry of the photorefractive diodes to achieve nonreciprocal energy transfer between two coherent laser beams.

Optics Express•May 25, 1998•2 citations

Two-Wave Mixing in Resonant Photorefractive GaAs/AlGaAs Semi-insulating Multiple Quantum Wells

Hu Cheng-Yong, Zhang Zhiguo, Kang Jing +4 more

We have observed the two-wave mixing of the photorefractive GaAs/AlGaAs semi-insulating multiple quantum wells fabricated by film lift-off approach and protonimplanting technique. Under the non-optimized condition, we have obtained the two-wave mixing gain larger than 180 cm -1 at wavelength near 784 nm for a field of 10 kV/cm. Energy transfer is also observed when the applied field is perpendicular to the grating vector.

Chinese Physics Letters•Jun 1, 1995•0 citations

Two-wave mixing in photorefractive AlGaAs/GaAs quantum wells

Q. N. Wang, David D. Nolte, M. R. Melloch

We have observed two-wave mixing in semi-insulating AlGaAs/GaAs multiple quantum well structures at wavelengths near the exciton absorption. The photorefractive index changes are caused by the Franz–Keldysh effect on quantum-confined excitons. Photorefractive gains larger than 200 cm−1 are obtained for the first time at wavelengths near 836 nm using stationary fringes and dc applied fields up to 5 kV/cm. The direction of energy transfer between the two beams is determined by the direction of applied electric field.

Applied Physics Letters•Jul 15, 1991•54 citations

Optical gain oscillation by photorefractive two-wave mixing

宁继平 Ning Jiping, Zhongkang Wu

Two-wave coupling in photorefractive media leads to intensity-dependent phase shift as well as energy transfer between the two waves without phase interdisturbance with this mechanism, the theoretical and experimental study on the optical gain oscillation has been done by using an optical ring cavity containing photorefractive media. The experimental results agree with the theoretical analysis.

Chinese Journal of Lasers•Jan 1, 1993•0 citations
Using a new method for measuring photorefractive two-wave mixing gain, we present the first experimental demonstration of nonreciprocal energy transfer during two-wave mixing under an external magnetic field. The nonreciprocal energy transfer is observed with mixing gains approaching 164 cm-1 exhibiting the characters of nonlinearity and saturation. A simple model of negative differential mobility and ultra fast carriers lifetime was proposed to explain these results.
Nonreciprocal energy transfer between two coherent laser beams during two-wave mixing requires a photorefractive phase shift between the interference pattern and the resulting space charge. The symmetry of the Stark geometry photorefractive quantum wells forbids a phase shift using either dc or ac fields. We present the first experimental demonstration of nonreciprocal energy transfer during two-wave mixing using moving gratings. Optical energy exchange is observed in photorefractive p-i-n quantum well diodes with photorefractive gains approaching 1000 cm−1 and exhibiting complex spatio-temporal dynamics.
We have observed two-wave mixing in semi-insulating AlGaAs/GaAs multiple quantum well structures at wavelengths near the exciton absorption. The photorefractive index changes are caused by the Franz–Keldysh effect on quantum-confined excitons. Photorefractive gains larger than 200 cm−1 are obtained for the first time at wavelengths near 836 nm using stationary fringes and dc applied fields up to 5 kV/cm. The direction of energy transfer between the two beams is determined by the direction of applied electric field.