期刊
OPTICS EXPRESS
卷 13, 期 24, 页码 9909-9915出版社
OPTICAL SOC AMER
DOI: 10.1364/OPEX.13.009909
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We report room temperature demonstration of slow light propagation via coherent population oscillation (CPO) in a GaAs quantum well waveguide. Measurements of the group delay of an amplitude modulated signal resonant with the heavy-hole exciton transition reveal delays as long as 830 ps. The measured bandwidth, which approaches 100 MHz, is related to the lifetime of the photoexcited electron-hole (e-h) plasma as expected for a CPO process. (c) 2005 Optical Society of America
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