Abstract

We present a low cost terahertz (THz) spectrometer with coherent detection based on two simple and robust dipole antennas driven by two laser diodes. The spectrometer covers frequencies up to 1THz, with a peak signal-to-noise ratio exceeding 40dB for a lock-in integration time of 30ms. We demonstrate that the thickness profile of a sample can be reconstructed from an acquired THz image.

© 2008 Optical Society of America

Full Article  |  PDF Article
Related Articles
Imaging with terahertz waves

B. B. Hu and M. C. Nuss
Opt. Lett. 20(16) 1716-1718 (1995)

Optimum excitation conditions for the generation of high-electric-field terahertz radiation from an oscillator-driven photoconductive device

André Dreyhaupt, Stephan Winnerl, Manfred Helm, and Thomas Dekorsy
Opt. Lett. 31(10) 1546-1548 (2006)

Terahertz generation from SI-GaAs stripline antenna with different structural parameters

Wei Shi, Lei Hou, Zheng Liu, and Thomas Tongue
J. Opt. Soc. Am. B 26(9) A107-A112 (2009)

References

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
Login to access OSA Member Subscription

Cited By

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
Login to access OSA Member Subscription

Figures (4)

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
Login to access OSA Member Subscription

Equations (4)

You do not have subscription access to this journal. Equations 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
Login to access OSA Member Subscription

Metrics

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
Login to access OSA Member Subscription