A new method for measuring the chiral parameter and the average refractive index of a chiral liquid

Jiun You Lin, Der Chin Su

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

We designed a method for measuring chiral parameter and average refractive index of an isotropic chiral medium using critical angle phenomena. Linearly polarized light is guided to project onto the interface of a semi-spherical glass and a chiral liquid. The reflected light passes through an analyzer to extract the interference signal of s- and p-polarization lights. Their phase difference is first optimized by a suitable optical arrangement and subsequently measured by a heterodyne interferometer. The result, then, is fed into equations to estimate the chiral parameter. We determine the average index of refraction from the critical angle occurred at the discontinuity of the phase difference of two polarized lights. Our method of measurement has the implicational merits of both common-path interferometry and heterodyne interferometry.

Original languageEnglish
Pages (from-to)317-323
Number of pages7
JournalOptics Communications
Volume218
Issue number4-6
DOIs
Publication statusPublished - 2003 Apr 1

Fingerprint

Light polarization
polarized light
Refractive index
interferometry
refractivity
Interferometry
Liquids
liquids
sands
luminaires
refraction
analyzers
discontinuity
interferometers
Signal interference
Refraction
interference
Interferometers
glass
polarization

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

Cite this

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A new method for measuring the chiral parameter and the average refractive index of a chiral liquid. / Lin, Jiun You; Su, Der Chin.

In: Optics Communications, Vol. 218, No. 4-6, 01.04.2003, p. 317-323.

Research output: Contribution to journalArticle

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AB - We designed a method for measuring chiral parameter and average refractive index of an isotropic chiral medium using critical angle phenomena. Linearly polarized light is guided to project onto the interface of a semi-spherical glass and a chiral liquid. The reflected light passes through an analyzer to extract the interference signal of s- and p-polarization lights. Their phase difference is first optimized by a suitable optical arrangement and subsequently measured by a heterodyne interferometer. The result, then, is fed into equations to estimate the chiral parameter. We determine the average index of refraction from the critical angle occurred at the discontinuity of the phase difference of two polarized lights. Our method of measurement has the implicational merits of both common-path interferometry and heterodyne interferometry.

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