A new polarimeter for dilute aqueous solutions: The improved null-method compensation for the optical rotatory power by the faraday effect of a sample

Takahisa Mitsui, Tohru Kinugawa, Katsumi Sakurai

Research output: Contribution to journalArticle


We propose a new polarimcter for the null-method measurement that utilizes the Faraday effect of a sample, i.e., dilute aqueous solutions in our case. With replacement of the Faraday glass that has been used in the conventional null-method polarimetcr with our sample, our improved method is completely free from the defects of Faraday glass such as the scattering center and the strain-induced birefringence. Furthermore, the optical rotatory power of a sample is determined, in principle, to be independent of the cell length. As a demonstrative experiment, the optical rotatory power of dilute glucose aqueous solutions was successfully measured.

Original languageEnglish
Pages (from-to)2150-2151
Number of pages2
JournalJapanese Journal of Applied Physics, Part 2: Letters
Issue number4 A
Publication statusPublished - 1999 Dec 1



  • Faraday rotator
  • Glucose
  • Null-method
  • Optical rotatory power
  • Polarimeter

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy (miscellaneous)
  • Physics and Astronomy(all)

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