Measurements of threshold photoemission magnetic dichroism using ultraviolet lasers and a photoelastic modulator

Takeshi Nakagawa, Toshihiko Yokoyama, Masahito Hosaka, Masahiro Katoh

Research output: Contribution to journalArticlepeer-review

30 Citations (Scopus)

Abstract

A magneto-optical method based on valence band photoemission by laser excitation is described. Total photoexcited electron dichroism is detected using wave plates or a photoelastic modulator. Compared to the direct current method using wave plates, a modulation technique assisted by a photoelastic modulator has an advantage to improve the signal-to-noise ratio of magnetic dichroism by a factor of 10. The magnetic circular and linear dichroism can be investigated with this technique. An application to magnetic domain imaging using photoemission electron microscope is also demonstrated.

Original languageEnglish
Article number023907
JournalReview of Scientific Instruments
Volume78
Issue number2
DOIs
Publication statusPublished - 2007
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Instrumentation

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