PRECISE DETECTION AND MEASUREMENT OF KERR MAGNETOOPTIC ROTATIONS.

Abstract

A new photoelectric apparatus for sensitive detection and precise measurement of magneto-optical rotations is described. The device, utilizing two photomultiplier tubes in a balanced d.c. bridge circuit, operates at a higher light level than those previously employed and provides a larger magnetization signal and an improved signal-to-noise ratio. The reported data show that rotations as small as 5 sec of angle are readily detected and those of a few minutes of angle (characteristic of the longitudinal Kerr effect) can be measured with a precision of a few seconds. (Author)

Document Details

Document Type
Technical Report
Publication Date
Aug 25, 1966
Accession Number
AD0638211

Entities

People

  • Charles A. Fowler Jr

Organizations

  • Pomona College

Tags

DTIC Thesaurus Topics

  • Detection
  • Kerr Effects
  • Magnetization
  • Measurement
  • Photomultiplier Tubes
  • Precision
  • Rotation

Fields of Study

  • Physics

Readers

  • Geodesy
  • Image Processing and Computer Vision.
  • Materials Science and Engineering.