Optical modulation of light transmission in GaAs doping superlattices

P. P. Ruden, J. A. Lehman, N. Khan, M. K. Hibbs-Brenner, E. Kalweit

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We report results of measurements of optically modulated optical transmittance of GaAs doping superlattices. The data extend over a spectral region of 1.39-1.58 eV. We find that the peak transmission modulation reaches 21% for a 2.6-μm-thick sample and an optical pump power density of <10 W/cm2 at room temperature. We interpret our data in the framework of a simple semiclassical model that includes the Franz-Keldysh effect both below and above the bulk GaAs band gap, as well as band filling and band shrinkage effects.

Original languageEnglish (US)
Pages (from-to)3293-3295
Number of pages3
JournalJournal of Applied Physics
Issue number8
StatePublished - Dec 1 1989

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    Ruden, P. P., Lehman, J. A., Khan, N., Hibbs-Brenner, M. K., & Kalweit, E. (1989). Optical modulation of light transmission in GaAs doping superlattices. Journal of Applied Physics, 65(8), 3293-3295. https://doi.org/10.1063/1.342665