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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Anthony J. Campillo
  • Vol. 31, Iss. 14 — Jul. 15, 2006
  • pp: 2214–2216

Adaptive correction of a tightly focused, high-intensity laser beam by use of a third-harmonic signal generated at an interface

T. A. Planchon, W. Amir, J. J. Field, C. G. Durfee, J. A. Squier, P. Rousseau, O. Albert, and G. Mourou  »View Author Affiliations


Optics Letters, Vol. 31, Issue 14, pp. 2214-2216 (2006)
http://dx.doi.org/10.1364/OL.31.002214


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Abstract

By using the third-harmonic signal generated at an air–dielectric interface, we demonstrate a novel way of correcting wavefront aberrations induced by high-numerical-aperture optics. The third harmonic is used as the input physical parameter of a genetic algorithm working in closed loop with a 37-actuator deformable mirror. This method is simple and reliable and can be used to correct aberrations of tightly focused beams, a regime where other methods have limitations. Improvement of the third-harmonic signal generated with an f 1.2 parabolic mirror by 1 order of magnitude is demonstrated.

© 2006 Optical Society of America

OCIS Codes
(010.1080) Atmospheric and oceanic optics : Active or adaptive optics
(140.3590) Lasers and laser optics : Lasers, titanium
(320.7090) Ultrafast optics : Ultrafast lasers

ToC Category:
Ultrafast Optics

History
Original Manuscript: March 29, 2006
Manuscript Accepted: April 26, 2006

Virtual Issues
Vol. 1, Iss. 8 Virtual Journal for Biomedical Optics

Citation
T. A. Planchon, W. Amir, J. J. Field, C. G. Durfee, J. A. Squier, P. Rousseau, O. Albert, and G. Mourou, "Adaptive correction of a tightly focused, high-intensity laser beam by use of a third-harmonic signal generated at an interface," Opt. Lett. 31, 2214-2216 (2006)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-31-14-2214

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