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Circular polarization interferometry: circularly polarized modes of cholesteric liquid crystals

2014

Article

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We describe a novel polarization interferometer which permits the determination of the refractive indices for circularly-polarized light. It is based on a Jamin-Lebedeff interferometer, modified with waveplates, and permits us to experimentally determine the refractive indices n(L) and n(R) of the respectively left- and right-circularly polarized modes in a cholesteric liquid crystal. Whereas optical rotation measurements only determine the circular birefringence, i.e. the difference (n(L) - n(R)), the interferometer also permits the determination of their absolute values. We report refractive indices of a cholesteric liquid crystal in the region of selective (Bragg) reflection as a function of temperature. (C) 2014 Optical Society of America

Author(s): Sanchez-Castillo, A. and Eslami, Sahand and Giesselmann, F. and Fischer, Peer.
Journal: OPTICS EXPRESS
Volume: 22
Number (issue): 25
Pages: 31227-31236
Year: 2014

Department(s): Micro, Nano, and Molecular Systems
Bibtex Type: Article (article)

DOI: 10.1364/OE.22.031227

BibTex

@article{ISI:000346368800115,
  title = {Circular polarization interferometry: circularly polarized modes of cholesteric liquid crystals},
  author = {Sanchez-Castillo, A. and Eslami, Sahand and Giesselmann, F. and Fischer, Peer.},
  journal = {OPTICS EXPRESS},
  volume = {22},
  number = {25},
  pages = {31227-31236},
  year = {2014}
}