Improved method for measuring small optical rotation angle of chiral medium

Jiun You Lin, Kun Huang Chen, Der Chin Su

Research output: Contribution to journalArticlepeer-review

25 Citations (Scopus)


Based on the principle of Feng et al., an improved optical method for measuring small rotational angle in chiral medium is proposed. When a quarter-wave plate and two analyzers with proper azimuth angles are arranged in the two outputs of a Mach-Zehnder interferometer (with sample been inserted in one of the light passages), the final phase difference of the two interference signals used to determine the rotational angle is greatly enhanced, which is found to be a about 15× the result obtained with the Feng et al.'s method. The feasibility of the measuring method was demonstrated by our experimental results. This method should bear the merits of high accuracy, short sample medium length, and simpler operational endeavor.

Original languageEnglish
Pages (from-to)113-118
Number of pages6
JournalOptics Communications
Issue number1-3
Publication statusPublished - 2004 Aug 1

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

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