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Optical Materials Express

Optical Materials Express

  • Editor: David J. Hagan
  • Vol. 1, Iss. 4 — Aug. 1, 2011
  • pp: 658–669

Optimization of nonlinear optical properties of ZnO micro and nanocrystals for biophotonics

Ben E. Urban, Jie Lin, Os Kumar, Kasilingam Senthilkumar, Yasuhisa Fujita, and Arup Neogi  »View Author Affiliations

Optical Materials Express, Vol. 1, Issue 4, pp. 658-669 (2011)

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The defect and impurity states in ZnO nanocrystals synthesized using the plasma arc technique can be modified to optimize the nonlinear optical properties for optoelectronic and biophotonic applications. Highly efficient second harmonic signals over a wide range of near-infrared wavelengths, spanning from 735 nm-980 nm, has been observed and can be used in biological imaging. The use of further high energy excitation ranging from 700 nm-755 nm leads to two-photon absorption and yields broadband two photon emission extending from the 370 nm-450 nm wavelength regime which can be useful for therapeutic applications.

© 2011 OSA

OCIS Codes
(160.4330) Materials : Nonlinear optical materials
(180.4315) Microscopy : Nonlinear microscopy

ToC Category:
Nonlinear Optical Materials

Original Manuscript: June 24, 2011
Revised Manuscript: July 12, 2011
Manuscript Accepted: July 12, 2011
Published: July 21, 2011

Ben E. Urban, Jie Lin, Os Kumar, Kasilingam Senthilkumar, Yasuhisa Fujita, and Arup Neogi, "Optimization of nonlinear optical properties of ZnO micro and nanocrystals for biophotonics," Opt. Mater. Express 1, 658-669 (2011)

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