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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 34, Iss. 1 — Jan. 1, 2009
  • pp: 22–24

Adaptive optimization of a hologram in holographic femtosecond laser processing system

Satoshi Hasegawa and Yoshio Hayasaki  »View Author Affiliations

Optics Letters, Vol. 34, Issue 1, pp. 22-24 (2009)

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In holographic parallel laser processing, precise control of diffraction peaks is important for fabricating enormous numbers of nanometer-scale structures. Although an optimized hologram has high uniformity of the peaks in a computer reconstruction, in practice, the uniformity is decreased owing to the spatial properties of the optical system. A novel optimization method based on peak intensity measurement is proposed to improve the uniformity. The method automatically incorporates the properties of the optical system into the hologram. Improved holographic femtosecond laser processing with this adaptive optimization is demonstrated.

© 2008 Optical Society of America

OCIS Codes
(090.1760) Holography : Computer holography
(090.2890) Holography : Holographic optical elements
(140.7090) Lasers and laser optics : Ultrafast lasers
(220.4000) Optical design and fabrication : Microstructure fabrication
(230.6120) Optical devices : Spatial light modulators

ToC Category:

Original Manuscript: August 22, 2008
Revised Manuscript: October 16, 2008
Manuscript Accepted: October 30, 2008
Published: December 22, 2008

Satoshi Hasegawa and Yoshio Hayasaki, "Adaptive optimization of a hologram in holographic femtosecond laser processing system," Opt. Lett. 34, 22-24 (2009)

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