OSA's Digital Library

Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 35, Iss. 22 — Nov. 15, 2010
  • pp: 3799–3801

High-performance fiber-laser-based terahertz spectrometer

Dominik Stehr, Christopher M. Morris, Christian Schmidt, and Mark S. Sherwin  »View Author Affiliations


Optics Letters, Vol. 35, Issue 22, pp. 3799-3801 (2010)
http://dx.doi.org/10.1364/OL.35.003799


View Full Text Article

Enhanced HTML    Acrobat PDF (335 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

We have developed a rapid scanning terahertz (THz) spectrometer based on a synchronized two-fiber-laser system. When the system is set to the asynchronous optical sampling mode, THz spectra extending to 3 THz can be acquired within 1 μ s at a signal-to-noise ratio of the electric field of better than 20. Signal averaging results in a dynamic range of more than 60 dB , and frequency components of more than 4 THz can be detected. When the lasers are set to the same repetition rate, electronically controlled optical sampling at a rate of 2.5 kHz is demonstrated, making the system versatile for different spectroscopic applications. Finally, we compare the THz emission spectra of a photoconductive switch that is pumped at 780 nm and a nonlinear DAST crystal excited at 1550 nm . We find that the spectral range of the spectrometer is significantly enhanced at higher frequencies, while the dynamic range remains constant.

© 2010 Optical Society of America

OCIS Codes
(120.6200) Instrumentation, measurement, and metrology : Spectrometers and spectroscopic instrumentation
(160.4890) Materials : Organic materials
(300.6495) Spectroscopy : Spectroscopy, teraherz

ToC Category:
Materials

History
Original Manuscript: August 19, 2010
Revised Manuscript: October 12, 2010
Manuscript Accepted: October 14, 2010
Published: November 9, 2010

Citation
Dominik Stehr, Christopher M. Morris, Christian Schmidt, and Mark S. Sherwin, "High-performance fiber-laser-based terahertz spectrometer," Opt. Lett. 35, 3799-3801 (2010)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-35-22-3799

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