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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 43, Iss. 19 — Jul. 1, 2004
  • pp: 3848–3853

Time-frequency signal processing of terahertz pulses

Daniela Dragoman and Mircea Dragoman  »View Author Affiliations


Applied Optics, Vol. 43, Issue 19, pp. 3848-3853 (2004)
http://dx.doi.org/10.1364/AO.43.003848


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Abstract

We demonstrate that some signal-processing techniques, such as the fractional Fourier transform and the spectrogram, which are known to be effective for optical signals, can be implemented at terahertz frequencies and with available terahertz devices. These techniques, contrary to the frequency-resolved optical-gating method for pulse characterization, do not require nonlinear media, which do not exist at terahertz frequencies. Thus the fractional Fourier transform or the spectrogram offers the only possibility of characterizing terahertz pulses simultaneously in time and frequency.

© 2004 Optical Society of America

OCIS Codes
(070.0070) Fourier optics and signal processing : Fourier optics and signal processing
(070.6020) Fourier optics and signal processing : Continuous optical signal processing
(320.0320) Ultrafast optics : Ultrafast optics
(320.5390) Ultrafast optics : Picosecond phenomena

History
Original Manuscript: January 12, 2004
Revised Manuscript: March 30, 2004
Published: July 1, 2004

Citation
Daniela Dragoman and Mircea Dragoman, "Time-frequency signal processing of terahertz pulses," Appl. Opt. 43, 3848-3853 (2004)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-43-19-3848

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