Abstract

Terahertz field-induced second-harmonic generation (TFISH) is a technique for optical detection of broadband THz fields. We show that by placing an iris at the interaction volume of the THz and optical fields, the TFISH signal increases by several tenfold in atmospheric air. The iris-assisted TFISH amplification is characterized at varying air pressures and probe intensities and provides an elegant platform for studying nonlinear phase matching in the gas phase.

© 2019 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Phase characterization in broadband THz wave detection through field-induced second harmonic generation

Liangliang Zhang, Hua Zhong, Kaijun Mu, Cunlin Zhang, and Yuejin Zhao
Opt. Express 20(1) 75-80 (2012)

Terahertz-field-induced second harmonic generation through Pockels effect in zinc telluride crystal

Marion Cornet, Jérôme Degert, Emmanuel Abraham, and Eric Freysz
Opt. Lett. 39(20) 5921-5924 (2014)

Broadband field-resolved terahertz detection via laser induced air plasma with controlled optical bias

Chia-Yeh Li, Denis V. Seletskiy, Zhou Yang, and Mansoor Sheik-Bahae
Opt. Express 23(9) 11436-11443 (2015)

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 (6)

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