Multiple Re ections{Cascaded Upshifting of Laser Pulses by Semiconductors
نویسنده
چکیده
By studying the detailed dynamics of an ultrashort pulse at the semiconductor{vacuum interfaces, we have shown that the interaction of these pulses with nonstationary semiconductor plasmas can, under appropriate conditions, lead to a variety of interesting phenomena: controlled upshifting of the laser frequency, a possible cascading of upshifting, a trapped pulse bouncing back and forth in the sample, and a \machine{gun" of increasingly blueshifted pulses. 42.65.Ky, 42.70.Nq Typeset using REVTEX
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