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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 38, Iss. 14 — Jul. 15, 2013
  • pp: 2560–2562

Seventh-harmonic generation from tightly focused 2 μm ultrashort pulses in air

Arpita Nath, Jayashree A. Dharmadhikari, Aditya K. Dharmadhikari, and Deepak Mathur  »View Author Affiliations


Optics Letters, Vol. 38, Issue 14, pp. 2560-2562 (2013)
http://dx.doi.org/10.1364/OL.38.002560


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Abstract

We report generation of third, fifth and seventh harmonics from air by using tightly focused, ultrashort pulses of short-wave infrared (2 μm) radiation. We have measured the third- and fifth-harmonic efficiencies to be 5×105 and 1.4×105, respectively, with the ratio of fifth-to-third-harmonic efficiency being close to 0.28. Our experimental results provide confirmation of expectations of the higher-order Kerr effect model.

© 2013 Optical Society of America

OCIS Codes
(190.2620) Nonlinear optics : Harmonic generation and mixing
(190.3270) Nonlinear optics : Kerr effect
(190.7110) Nonlinear optics : Ultrafast nonlinear optics
(320.7120) Ultrafast optics : Ultrafast phenomena

ToC Category:
Ultrafast Optics

History
Original Manuscript: May 27, 2013
Revised Manuscript: June 17, 2013
Manuscript Accepted: June 17, 2013
Published: July 12, 2013

Citation
Arpita Nath, Jayashree A. Dharmadhikari, Aditya K. Dharmadhikari, and Deepak Mathur, "Seventh-harmonic generation from tightly focused 2 μm ultrashort pulses in air," Opt. Lett. 38, 2560-2562 (2013)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-38-14-2560

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