Nonlocal study of optical second harmonic generation from a GaAs/AlGaAs quantum well subjected to a DC electric field

Ansheng Liu; Ole Keller

doi:10.1117/12.175711

Translator Disclaimer

11 May 1994 Nonlocal study of optical second harmonic generation from a GaAs/AlGaAs quantum well subjected to a DC electric field

Ansheng Liu, Ole Keller

Author Affiliations +

Proceedings Volume 2139, Quantum Well and Superlattice Physics V; (1994) https://doi.org/10.1117/12.175711
Event: OE/LASE '94, 1994, Los Angeles, CA, United States

Abstract

A microscopic local-field calculation of the infrared second-harmonic generation associated with intersubband transitions in a single GaAs/AlGaAs quantum-well structure subjected to an applied electric field is presented. Taking as a starting point a fundamental selfconsistent integral equation for the local field, the p-polarized first-harmonic fields inside the quantum well are calculated exactly. The result for the local-field calculation at the first-harmonic frequency is used to calculate the p-polarized second-harmonic local field. The conversion efficiency of the second-harmonic generation from the quantum well is determined. Numerical calculations of the frequency spectra of the second-harmonic powers are presented for different applied fields. The numerical results show that strong second-harmonic generation occurs in the vicinity of the resonance frequencies for the first- and second-harmonic local field inside the quantum well. The influence of the applied field on the optical second- harmonic generation is investigated. It is demonstrated that the presence of the dc bias leads to a blue-shift of the resonance frequencies in the SH energy reflection spectra stemming from the quantum-confined Stark effect, and that the maximum value of the SH power decreases when the applied field is increased.

Citation Download Citation

Ansheng Liu and Ole Keller "Nonlocal study of optical second harmonic generation from a GaAs/AlGaAs quantum well subjected to a DC electric field", Proc. SPIE 2139, Quantum Well and Superlattice Physics V, (11 May 1994); https://doi.org/10.1117/12.175711

ACCESS THE FULL ARTICLE