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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 3 — Feb. 1, 2014
  • pp: 478–481

Dynamic control of spatial wavelength dispersion in holographic femtosecond laser processing

Satoshi Hasegawa and Yoshio Hayasaki  »View Author Affiliations


Optics Letters, Vol. 39, Issue 3, pp. 478-481 (2014)
http://dx.doi.org/10.1364/OL.39.000478


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Abstract

Dynamic control of spatial wavelength dispersion is effective due to a potentially large spectral bandwidth of femtosecond pulses, in particular, when using sub-100-fs pulses. We demonstrate spatial wavelength dispersion control, which drastically reduces focal spot distortion in the reconstruction of a hologram, using a pair of spatial light modulators. The improved diffraction spots had nearly diffraction-limited spot sizes, agreeing well with theoretical predictions. The dynamic control of dispersion is also demonstrated in order to restrain unnecessary processing given by the zeroth-order pulse.

© 2014 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
(260.2030) Physical optics : Dispersion

ToC Category:
Holography

History
Original Manuscript: October 2, 2013
Revised Manuscript: December 10, 2013
Manuscript Accepted: December 14, 2013
Published: January 20, 2014

Citation
Satoshi Hasegawa and Yoshio Hayasaki, "Dynamic control of spatial wavelength dispersion in holographic femtosecond laser processing," Opt. Lett. 39, 478-481 (2014)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-39-3-478

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