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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 7 — Mar. 29, 2010
  • pp: 7038–7046

Tunable narrow band THz wave generation from laser induced gas plasma

Jayashis Das and Masashi Yamaguchi  »View Author Affiliations


Optics Express, Vol. 18, Issue 7, pp. 7038-7046 (2010)
http://dx.doi.org/10.1364/OE.18.007038


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Abstract

Tunable narrowband THz waveforms were generated from laser induced gas plasma using shaped optical pulses. Square wave phase patterns were fed to a spatial light modulator. The frequency and amplitude of the square wave phase were used as parameters to tailor the terahertz waveforms. The dependence of THz waveforms on these parameters has been studied in detail. The presence of the ionization thresholds for pulse shaping is also discussed. We have demonstrated the wide and continuous tunability of the central frequency of the narrowband THz waveform from 2.5 to 7.5THz.

© 2010 OSA

OCIS Codes
(190.7110) Nonlinear optics : Ultrafast nonlinear optics
(320.5540) Ultrafast optics : Pulse shaping

ToC Category:
Ultrafast Optics

History
Original Manuscript: January 7, 2010
Revised Manuscript: March 12, 2010
Manuscript Accepted: March 15, 2010
Published: March 22, 2010

Citation
Jayashis Das and Masashi Yamaguchi, "Tunable narrow band THz wave generation from laser induced gas plasma," Opt. Express 18, 7038-7046 (2010)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-18-7-7038


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