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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics


  • Editor: Gregory W. Faris
  • Vol. 2, Iss. 11 — Nov. 26, 2007

Theory of light emission from a dipole source embedded in a chiral sculptured thin film

Tom G. Mackay and Akhlesh Lakhtakia  »View Author Affiliations

Optics Express, Vol. 15, Issue 22, pp. 14689-14703 (2007)

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Developing a theory based on a spectral Green function for light emission from a point–dipole source embedded in a chiral sculptured thin film (CSTF), we found that the intensity and polarization of the emitted light are strongly influenced by the structural handedness of the CSTF as well as the placement and orientation of the source dipole. The emission patterns across both pupils of the dipole–containing CSTF can be explained in terms of the circular Bragg phenomenon exhibited by CSTFs when illuminated by normally as well as obliquely incident plane waves. The emission characteristics augur well for the future of CSTFs as optical biosensors as well as light emitters with controlled circular polarization and bandwidth.

© 2007 Optical Society of America

OCIS Codes
(260.1440) Physical optics : Birefringence
(260.3800) Physical optics : Luminescence
(310.6860) Thin films : Thin films, optical properties
(310.6845) Thin films : Thin film devices and applications

ToC Category:
Physical Optics

Original Manuscript: September 5, 2007
Revised Manuscript: October 1, 2007
Manuscript Accepted: October 1, 2007
Published: October 24, 2007

Virtual Issues
Vol. 2, Iss. 11 Virtual Journal for Biomedical Optics

Tom G. Mackay and Akhlesh Lakhtakia, "Theory of light emission from a dipole source embedded in a chiral sculptured thin film," Opt. Express 15, 14689-14703 (2007)

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