Abstract
The dynamics of photoexcited electrons in proton-bombarded InP1 are observed by ultrafast optical-pump-THz-probe spectroscopy. The transmission of 150-fs THz pulses is measured after excitation with 120-fs-visible laser pulses. The THz pulses are generated by optical rectification of 100-6 laser pulses in the highly nonlinear organic crystal DAST (4-di-methylamino-N-methylstilbazolium-tosylate).2 The emitted THz pulses have a peak intensity at 7 THz with a spectral width of 6 THz and an average power of 100 nW.3
© 1998 Optical Society of America
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