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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Anthony J. Campillo
  • Vol. 31, Iss. 12 — Jun. 15, 2006
  • pp: 1836–1838

Computer-generated volume holograms fabricated by femtosecond laser micromachining

Wenjian Cai, Theodore J. Reber, and Rafael Piestun  »View Author Affiliations


Optics Letters, Vol. 31, Issue 12, pp. 1836-1838 (2006)
http://dx.doi.org/10.1364/OL.31.001836


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Abstract

We define computer-generated volume holograms (CGVHs) as arbitrary 3D refractive index modulations designed to perform optical functions based on diffraction, scattering, and interference phenomena. CGVHs can differ dramatically from classical volume holograms in terms of coding possibilities, and from thin computer-generated holograms in terms of efficiency and selectivity. We propose an encoding technique for designing such holograms and demonstrate the concept by scanning focused femtosecond laser pulses to produce localized refractive index modifications in glass. These CGVHs show a significant increase in efficiency with thickness. Consequently, they are attractive for photonic integration with free-space and guided-wave devices, as well as for encoding spatial and temporal information.

© 2006 Optical Society of America

OCIS Codes
(050.7330) Diffraction and gratings : Volume gratings
(130.3120) Integrated optics : Integrated optics devices
(320.7110) Ultrafast optics : Ultrafast nonlinear optics

ToC Category:
Holography

History
Original Manuscript: January 17, 2006
Revised Manuscript: March 8, 2006
Manuscript Accepted: March 9, 2006

Citation
Wenjian Cai, Theodore J. Reber, and Rafael Piestun, "Computer-generated volume holograms fabricated by femtosecond laser micromachining," Opt. Lett. 31, 1836-1838 (2006)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-31-12-1836

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