Abstract
When confined to a dimension much smaller than their characteristic wavelength, coupled longitudinal modes of polar semiconductors can radiate.1 We impulsively excite coherent, collective modes of bulk InAs and InSb using 30 fs near-infrared laser pulses and detect the emitted THz frequency radiation by using a bolometer and the broadband interferometric technique of Ref. [2].
© 2001 Optical Society of America
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