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A Cherenkov source for freely-propagating terahertz beams

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2 Author(s)
Fattinger, C. ; IBM Thomas J. Watson Res. Center, Yorktown Heights, NY, USA ; Grischkowsky, D.

Using a unique cylindrical optical arrangement, the authors have coupled out a Cherenkov electromagnetic shock wave from the confining dielectric substrate and have used this shock wave as a source to produce freely propagating terahertz pulses. The shock wave is initially generated by a surface-dipole distribution propagating faster than the phase velocity in the underlying dielectric substrate

Published in:

Quantum Electronics, IEEE Journal of  (Volume:25 ,  Issue: 12 )