Microdegree azimuth polarimeter using optical heterodyne detection

Takahisa Mitsui, Katsumi Sakurai

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


We have developed a highly accurate azimuth polarimeter using an optical heterodyne technique with a single-mode laser diode as a light source. Its minimum detectable rotation angle is 0.198 μdeg √W/Hz; i.e., it is inversely proportional to the square root of the laser power. Using a glass cell of 1-mm optical path length, we have also successfully observed the optical rotatory power of an aqueous glucose solution whose density is close to that of glucose in human blood.

Original languageEnglish
Pages (from-to)4844-4847
Number of pages4
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Issue number9 A
Publication statusPublished - 1996
Externally publishedYes


  • Blood glucose level
  • Heterodyne detection
  • Laser diode
  • Optical rotation
  • Polarimeter

ASJC Scopus subject areas

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


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