Abstract

It is shown by simulations that terahertz (THz) radiation can be produced more efficiently by a mid-infrared laser pulse from a gas target. The THz amplitude is enhanced by 35 times as the laser wavelength increases from 1 μm to 4 μm; a 4 μm laser at 1015 W cm−2 produces 5 MV/cm THz radiation. The THz amplitude changes oscillatingly with increasing laser intensity for a given laser wavelength. In addition, the laser intensity threshold for the THz emission is lower for a longer laser wavelength.

© 2011 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Strong terahertz pulse generation by chirped laser pulses in tenuous gases

W.-M. Wang, Z.-M. Sheng, H.-C. Wu, M. Chen, C. Li, J. Zhang, and K. Mima
Opt. Express 16(21) 16999-17006 (2008)

Terahertz emission from ultrafast ionizing air in symmetry-broken laser fields

K. Y. Kim, J. H. Glownia, A. J. Taylor, and G. Rodriguez
Opt. Express 15(8) 4577-4584 (2007)

Characteristics of extreme ultraviolet emission from mid-infrared laser-produced rare-earth Gd plasmas

Takeshi Higashiguchi, Bowen Li, Yuhei Suzuki, Masato Kawasaki, Hayato Ohashi, Shuichi Torii, Daisuke Nakamura, Akihiko Takahashi, Tatsuo Okada, Weihua Jiang, Taisuke Miura, Akira Endo, Padraig Dunne, Gerry O’Sullivan, and Tetsuya Makimura
Opt. Express 21(26) 31837-31845 (2013)

More Recommended Articles

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 (3)

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 (1)

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