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
OSA Recommended Articles
Continuous-wave terahertz system based on a dual-mode laser for real-time non-contact measurement of thickness and conductivity

Kiwon Moon, Namje Kim, Jun-Hwan Shin, Young-Jong Yoon, Sang-Pil Han, and Kyung Hyun Park
Opt. Express 22(3) 2259-2266 (2014)

Terahertz quasi time-domain spectroscopy based on telecom technology for 1550 nm

Robert B. Kohlhaas, Arno Rehn, Simon Nellen, Martin Koch, Martin Schell, Roman J. B. Dietz, and Jan C. Balzer
Opt. Express 25(11) 12851-12859 (2017)

Continuous-wave 1550 nm operated terahertz system using ErAs:In(Al)GaAs photo-conductors with 52 dB dynamic range at 1 THz

A.D.J. Fernandez Olvera, H. Lu, A. C. Gossard, and S. Preu
Opt. Express 25(23) 29492-29500 (2017)

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