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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 22, Iss. 3 — Feb. 10, 2014
  • pp: 2603–2608

Parallel femtosecond laser ablation with individually controlled intensity

Martti Silvennoinen, Jarno Kaakkunen, Kimmo Paivasaari, and Pasi Vahimaa  »View Author Affiliations


Optics Express, Vol. 22, Issue 3, pp. 2603-2608 (2014)
http://dx.doi.org/10.1364/OE.22.002603


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Abstract

The use of computer generated holograms together with spatial light modulator (SLM) enable highly parallel laser micromachining. Usually SLM is used for splitting the original laser beam to desired number of beams with equal intensity. However, this technique also enables that the intensity of every beam can be controlled individually. Example of the hologram designing procedure for separation of the original beam to 400 beams with individually controlled intensity is presented. The proposed technique is demonstrated by femtosecond laser ablation of grayscale pictures so that grey scale of the pixel is addressed with corresponding beam intensity in the ablated picture.

© 2014 Optical Society of America

OCIS Codes
(140.3390) Lasers and laser optics : Laser materials processing
(140.7090) Lasers and laser optics : Ultrafast lasers
(220.4000) Optical design and fabrication : Microstructure fabrication
(070.6120) Fourier optics and signal processing : Spatial light modulators

ToC Category:
Laser Microfabrication

History
Original Manuscript: September 25, 2013
Revised Manuscript: December 12, 2013
Manuscript Accepted: December 16, 2013
Published: January 30, 2014

Citation
Martti Silvennoinen, Jarno Kaakkunen, Kimmo Paivasaari, and Pasi Vahimaa, "Parallel femtosecond laser ablation with individually controlled intensity," Opt. Express 22, 2603-2608 (2014)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-22-3-2603


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