ISSTT Proceedings

ISSTT Proceedings

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THZ field generation and manipulation by coherent control over phonon-polaritons

Authors:
T. Feurer, Joshua C. Vaughan, Nikolay S. Stoyanov, David W. Ward, Keith A. Nelson
Abstract:
Here we present experimental demonstrations of coherent control over phonon-polaritons and the associated THz fields by employing spatial-only, temporal-only, and spatiotemporal pulse shaping to steer, focus, and amplify the propagating THz fields. In addition, we show that spatial-only control allows for the generation of specific excitation profiles, including circular excitation geometries that lead to focusing and increased peak amplitude/intensity levels. The polariton host crystals may be uniform or may be patterned into waveguide, resonator, polaritonic bandgap, and other structures. The capabilities enable multiplexed solid-state THz signal generation, signal propagation among specified addresses, signal manipulation, and signal readout, all without loss of bandwidth.
Categories:
Mixers, Optics
Year:
2002
Session:
6
Full-text:
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Page Number(s):
215-218