OSA's Digital Library

Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Henry Van Driel
  • Vol. 26, Iss. 9 — Sep. 1, 2009
  • pp: A66–A73

Broadband terahertz detection with selected gases

Xiaofei Lu, Nicholas Karpowicz, and X.-C. Zhang  »View Author Affiliations


JOSA B, Vol. 26, Issue 9, pp. A66-A73 (2009)
http://dx.doi.org/10.1364/JOSAB.26.000A66


View Full Text Article

Enhanced HTML    Acrobat PDF (527 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

We present a combined theoretical and experimental investigation of the detection of pulsed terahertz waves via field-induced second-harmonic generation in gaseous media. The effects of the probe pulse energy, bias field strength, nonlinear susceptibility of the gases, phase matching, and focusing conditions of the terahertz and optical beams are discussed. The analytical calculation, which is based on a Gaussian-beam approximation, allows for the easy identification of the parameters important for the sensitivity of the terahertz gas sensor. A figure of merit is introduced to characterize the sensitivity of gases. The experimental results are found to be in good agreement with the calculation.

© 2009 Optical Society of America

OCIS Codes
(120.1880) Instrumentation, measurement, and metrology : Detection
(190.2620) Nonlinear optics : Harmonic generation and mixing
(190.4380) Nonlinear optics : Nonlinear optics, four-wave mixing
(190.4710) Nonlinear optics : Optical nonlinearities in organic materials
(040.2235) Detectors : Far infrared or terahertz

History
Original Manuscript: February 17, 2009
Revised Manuscript: April 21, 2009
Manuscript Accepted: May 26, 2009
Published: June 25, 2009

Citation
Xiaofei Lu, Nicholas Karpowicz, and X.-C. Zhang, "Broadband terahertz detection with selected gases," J. Opt. Soc. Am. B 26, A66-A73 (2009)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-26-9-A66

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited