TY - GEN
T1 - Doppler-shifted self-reflected wave from a semiconductor
AU - Schuelzgen, Alex
AU - Hughes, S.
AU - Peyghambarian, Nasser
PY - 1997
Y1 - 1997
N2 - We report the first experimental observation of a self- reflected wave inside a very dense saturable absorber. An intense femtosecond pulse saturates the absorption and causes a density front moving into the semiconductor sample. Due to the motion of the boundary between saturated and unsaturated areas of the sample the light reflected at this boundary is red-shifted by the Doppler effect. The spectrally shifted reflection makes it possible to distinguish between surface reflection and self-reflection and is used to proof the concept of the dynamic nonlinear skin effect experimentally. Quite well agreement with model calculations is found.
AB - We report the first experimental observation of a self- reflected wave inside a very dense saturable absorber. An intense femtosecond pulse saturates the absorption and causes a density front moving into the semiconductor sample. Due to the motion of the boundary between saturated and unsaturated areas of the sample the light reflected at this boundary is red-shifted by the Doppler effect. The spectrally shifted reflection makes it possible to distinguish between surface reflection and self-reflection and is used to proof the concept of the dynamic nonlinear skin effect experimentally. Quite well agreement with model calculations is found.
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M3 - Conference contribution
AN - SCOPUS:0031338610
SN - 0819424056
T3 - Proceedings of SPIE - The International Society for Optical Engineering
SP - 393
EP - 399
BT - Proceedings of SPIE - The International Society for Optical Engineering
PB - Society of Photo-Optical Instrumentation Engineers
T2 - Physics and Simulation of Optoelectronic Devices V
Y2 - 10 February 1997 through 14 February 1997
ER -