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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Grover Swartzlander
  • Vol. 30, Iss. 7 — Jul. 1, 2013
  • pp: 1864–1871

Effective permittivity and third-order nonlinear susceptibility for a dilute composite consisting of partially aligned nanorods

Yedidya Lior and Dan M. Marom  »View Author Affiliations


JOSA B, Vol. 30, Issue 7, pp. 1864-1871 (2013)
http://dx.doi.org/10.1364/JOSAB.30.001864


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Abstract

The expected permittivity and third-order nonlinear susceptibility of a composite consisting of semiconductor nanorods (NRs) dispersed in a polymer host are derived using a generalized Maxwell Garnett model under various NR axis orientation statistics, achieved by an aligning electric field. The semiconductor NRs are analyzed as prolate spheroids and modeled as more realistic capsule shapes. From the angular distribution function of the NRs, the composite macroscopic characteristics are found for low filling fractions. As the alignment field strength increases, the composite optical properties asymptotically converge toward the nematic case. Aligning fields of order 107V/m are required for the optical properties to increase to half the value between random orientation and nematic array composites.

© 2013 Optical Society of America

OCIS Codes
(160.4330) Materials : Nonlinear optical materials
(160.4236) Materials : Nanomaterials

ToC Category:
Materials

History
Original Manuscript: February 20, 2013
Revised Manuscript: May 15, 2013
Manuscript Accepted: May 15, 2013
Published: June 13, 2013

Citation
Yedidya Lior and Dan M. Marom, "Effective permittivity and third-order nonlinear susceptibility for a dilute composite consisting of partially aligned nanorods," J. Opt. Soc. Am. B 30, 1864-1871 (2013)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-30-7-1864


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  28. The variance is the integration of the square of the relevant function (permittivity or susceptibility) minus its mean value. The STD is the square root of the variance.

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