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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 37, Iss. 17 — Sep. 1, 2012
  • pp: 3639–3641

Light absorption engineering of hydrogenated nanocrystalline silicon by femtosecond laser

D. Q. Zheng, Y. J. Ma, L. Xu, W. A. Su, Q. H. Ye, J. I. Oh, and W. Z. Shen  »View Author Affiliations


Optics Letters, Vol. 37, Issue 17, pp. 3639-3641 (2012)
http://dx.doi.org/10.1364/OL.37.003639


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Abstract

The light absorption coefficient of hydrogenated nanocrystalline silicon has been engineered to have a Gaussian distribution by means of absorption modification using a femtosecond laser. The absorption-modified sample exhibits a significant absorption enhancement of up to 700%, and the strong absorption does not depend on the incident light. We propose a model responsible for this interesting behavior. In addition, we present an optical limiter constructed through this absorption engineering method.

© 2012 Optical Society of America

OCIS Codes
(140.3390) Lasers and laser optics : Laser materials processing
(190.4400) Nonlinear optics : Nonlinear optics, materials
(230.4320) Optical devices : Nonlinear optical devices
(160.1245) Materials : Artificially engineered materials

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: May 23, 2012
Revised Manuscript: June 29, 2012
Manuscript Accepted: July 11, 2012
Published: August 28, 2012

Citation
D. Q. Zheng, Y. J. Ma, L. Xu, W. A. Su, Q. H. Ye, J. I. Oh, and W. Z. Shen, "Light absorption engineering of hydrogenated nanocrystalline silicon by femtosecond laser," Opt. Lett. 37, 3639-3641 (2012)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-37-17-3639

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