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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 2 — Jan. 18, 2010
  • pp: 656–661

Adaptive optics for direct laser writing with plasma emission aberration sensing

Alexander Jesacher, Graham D. Marshall, Tony Wilson, and Martin J. Booth  »View Author Affiliations

Optics Express, Vol. 18, Issue 2, pp. 656-661 (2010)

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Aberrations affect the focal spot quality in direct laser write applications when focusing through a refractive index mismatch. Closed loop adaptive optics can correct these aberrations if a suitable feedback signal can be found. Focusing an ultrafast laser beam into transparent dielectric material can lead to plasma formation in the focal region. We report using the supercontinuum emitted by such a plasma to measure the optical aberrations, the subsequent aberration correction using a spatial light modulator and the fabrication of nanostructures using the corrected optical system.

© 2010 Optical Society of America

OCIS Codes
(090.1000) Holography : Aberration compensation
(140.3390) Lasers and laser optics : Laser materials processing
(250.5300) Optoelectronics : Photonic integrated circuits
(130.2755) Integrated optics : Glass waveguides

ToC Category:
Laser Microfabrication

Original Manuscript: November 17, 2009
Revised Manuscript: December 19, 2009
Manuscript Accepted: December 20, 2009
Published: January 4, 2010

Alexander Jesacher, Graham D. Marshall, Tony Wilson, and Martin J. Booth, "Adaptive optics for direct laser writing with plasma emission aberration sensing," Opt. Express 18, 656-661 (2010)

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