Terahertz transition radiation

We report on the observation of transition radiation generated by short optical pulses crossing the boundary between linear and non-linear materials. Unlike transition radiation observed with moving charges, we observe terahertz generation at the boundary between two media traversed by a femtosecond...

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Bibliographic Details
Main Authors: Nikoghosyan, A.S., Laziev, E.M., Martirosyan, R.M., Hakhoumian, A.A.
Format: Conference Proceeding
Language:English
Subjects:
Frequency
Laboratories
Optical attenuators
Optical polarization
Optical pulse generation
Optical pulses
Optical reflection
Optical surface waves
Optical waveguides
Virtual colonoscopy
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Summary:We report on the observation of transition radiation generated by short optical pulses crossing the boundary between linear and non-linear materials. Unlike transition radiation observed with moving charges, we observe terahertz generation at the boundary between two media traversed by a femtosecond optical pulses. Contribution from bulk nonlinear difference frequency generation is also observed, but for the first time these effects can be separated.
DOI:10.1109/ICIMW.2004.1422002