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Chinese Optics Letters

Chinese Optics Letters

| PUBLISHED MONTHLY BY CHINESE LASER PRESS AND DISTRIBUTED BY OSA

  • Vol. 8, Iss. 2 — Feb. 1, 2010
  • pp: 213–216

A quasi-crystal model of collagen microstructure based on SHG microscopy

Pu Xu, Eleanor Kable, Colin J. R. Sheppard, and Guy Cox  »View Author Affiliations


Chinese Optics Letters, Vol. 8, Issue 2, pp. 213-216 (2010)


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Abstract

Second harmonic generation (SHG) results from molecules which are polarized by an external electric field often provided by an intense laser beam. The polarizability depends on firstly the intrinsic structural properties of the substance and hence the second-order nonlinear susceptibility, and secondly the intensity and polarization direction of the incident light. The polarization characteristics of the beam are therefore of interest. In this letter, we discuss some considerations in SHG microscopy of collagen when the incoming beam is circularly polarized, and present some supporting results as well as a numerical analysis. We propose a quasi-crystal model of collagen microstructure in an effort to further our understanding on this protein.

© 2010 Chinese Optics Letters

OCIS Codes
(180.0180) Microscopy : Microscopy
(190.0190) Nonlinear optics : Nonlinear optics
(260.0260) Physical optics : Physical optics

Citation
Pu Xu, Eleanor Kable, Colin J. R. Sheppard, and Guy Cox, "A quasi-crystal model of collagen microstructure based on SHG microscopy," Chin. Opt. Lett. 8, 213-216 (2010)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-8-2-213

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