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Conferences > CLEO_Europe > 1994 > CTuJ > CTuJ1

Ultrafast trapping and slow recombination in Auston switches observed via THz spectroscopy

S. D. Brorson, J. Zhang, and S. R. Keiding

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Abstract

We have performed two different types of femtosecond pump and probe measurements on THz transmitting antennas.1 The devices were "10-30-10" antennas fabricated on ion-bombarded silicon-on-sapphire (SOS) chips and pumped with a mode-locked Ti:Al2O3 laser. The experimental setup is similar to the usual configuration for THz spectroscopy1 except that the transmitting antenna is excited by two laser pulses, a "pump" and a "probe."2 The emitted THz pulse is monitored at the receiving antenna by activating the receiver with a "gate" pulse from the laser.

© 1994 IEEE

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