[18p-PA4-1~20] 3.8 Optical measurement, instrumentation, and sensor

[18p-PA4-9] Optical Polarization Measurement Using Magneto-optical Fabry-Pérot Cavity

〇Haruki Yamane¹, Shingo Takahashi¹, Kiyoshi Yamakawa¹, Koki Takahashi², Nobuya Seko², Ken Sumiyoshi², Koji Shigemura², Satoshi Miura² (1.Akita Ind. Tech., 2.Tianma Japan)

Keywords:polarimeter, magneto-optical, transverse Kerr effect

Optical interference phenomena on magnetic stacked films consisting of [surface half mirror/dielectric layer/magnetic mirror] multilayers provide a huge magneto-optical (MO) Kerr rotation angle. This MO enhancement is sensitive to the polarization angle because the interference effect depends on the rotation angle of the measurement light. In this presentation, a new type of polarimeter using the MO Fabry-Pérot cavity has been proposed under a transverse Kerr measurement condition.