Room temperature excitonic nonlinear absorption and refraction in GaAs/A1GaAs multiple quantum well structures

Journal Article · Thu Mar 01 04:00:00 EST 1984 · IEEE J. Quant. Electron.; (United States)

DOI:https://doi.org/10.1109/JQE.1984.1072393· OSTI ID:6194694

Chemla, D S; Miller, D A.B.

The authors present detailed experimental studies and modeling of the nonlinear absorption and refraction of GaAs/A1GaAs multiple quantum well structures (MQWS) in the small signal regime. Nonlinear absorption and degenerate four-wave mixing in the vicinity of the room temperature exciton resonances are observed and analyzed. Spectra of the real and imaginary parts of the nonlinear cross section as a function of wavelength are obtained, and these are in excellent agreement with experimental data. A simple model for excitonic absorption saturation is proposed; it accounts qualitatively for the very low saturation intensities of room temperature excitons in MQWS.

• Research Organization: Bell Laboratories, Holmdel, NJ
• OSTI ID: 6194694
• Journal Information: IEEE J. Quant. Electron.; (United States), Journal Name: IEEE J. Quant. Electron.; (United States) Vol. QE-20:3; ISSN IEJQA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
ABSORPTION
ALUMINIUM ARSENIDES
ALUMINIUM COMPOUNDS
AMBIENT TEMPERATURE
ARSENIC COMPOUNDS
ARSENIDES
CRYSTALS
EXCITONS
GALLIUM ARSENIDES
GALLIUM COMPOUNDS
LASERS
NONLINEAR PROBLEMS
PNICTIDES
QUANTUM CRYSTALS
QUASI PARTICLES
REFRACTION
RESONANCE
SEMICONDUCTOR DEVICES
SEMICONDUCTOR LASERS
SPECTRA
WAVELENGTHS