Abstract

We expand upon previously published [Opt. Lett. 37, 3279 (2012) [CrossRef]  ] experimental results on third harmonic generation with a focused Gaussian beam in the semi-infinite limit, and compare these results with an analytical treatment of the phase-matching integral and simulations to investigate limits to the conversion efficiency. In the tight-focusing limit for a Gaussian beam, the phase-matching integral vanishes in the lowest-order nonlinear term, leading to poor conversion efficiency and mode quality. However, we utilize two techniques to break the phase-matching symmetry to dramatically improve the conversion efficiency and mode. Both methods inhibit third harmonic generation after the focus, preventing the cancellation of the harmonic radiation. We show that new limits on the conversion efficiency are set by induced nonlinear phase-mismatch and ionization.

© 2017 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Enhanced harmonic generation by breaking the phase-matching symmetry

G. N. Gibson, N. Majtenyi, and E. Sergan
Opt. Lett. 37(15) 3279-3281 (2012)

Generation of intense single-order harmonic pulse in the vacuum ultraviolet region using a deep ultraviolet driving laser

Shunsuke Adachi, Takuya Horio, and Toshinori Suzuki
Opt. Lett. 37(11) 2118-2120 (2012)

Blue-shifted third-harmonic generation and correlated self-guiding during ultrafast barrier suppression ionization of subatmospheric density noble gases

C. W. Siders, N. C. Turner, M. C. Downer, A. Babine, A. Stepanov, and A. M. Sergeev
J. Opt. Soc. Am. B 13(2) 330-335 (1996)

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 (9)

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

Tables (1)

You do not have subscription access to this journal. Article tables 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 (14)

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