Title:
MAGNETO-OPTICAL MEASUREMENT METHOD AND MAGNETO-OPTICAL MEASUREMENT DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/119237
Kind Code:
A1
Abstract:
[Problem] To provide a magneto-optical measurement method and magneto-optical measurement device capable of acquiring spatial spin wave information. [Solution] A pump light irradiation means 11 irradiates pump light comprising pulse light onto a magnetic object to be measured 1. A probe light irradiation means 12 irradiates probe light onto the object to be measured 1 such that the probe light is delayed from the pump light by a prescribed delay time. A first polarization means 14 linearly polarizes the probe light at a prescribed angle before the probe light is irradiated onto the object to be measured 1. A second polarization means 15 linearly polarizes the transmitted light resulting from the passing of the probe light through the object to be measured 1 while changing the polarization angle within a range including a prescribed angle. An intensity acquisition means 16 acquires the intensity distributions of the transmitted light for each linear polarization angle of the second polarization means 15. An analysis means 17 acquires information about the response of the object to be measured 1 to the pump light on the basis of the linear polarization angles of the second polarization means 15 and the intensity distributions of the transmitted light for each linear polarization angle.
Inventors:
HASHIMOTO YUSUKE (JP)
SAITOH EIJI (JP)
SAITOH EIJI (JP)
Application Number:
PCT/JP2016/086855
Publication Date:
July 13, 2017
Filing Date:
December 12, 2016
Export Citation:
Assignee:
UNIV TOHOKU (JP)
International Classes:
G01R15/24; G01R33/032; H01L29/82
Foreign References:
| JP2014060229A | 2014-04-03 | |||
| JP2010175266A | 2010-08-12 | |||
| JP2008224907A | 2008-09-25 | |||
| JPH03185339A | 1991-08-13 | |||
| JP2012007962A | 2012-01-12 |
Other References:
TAKUYA SATO: "Spin Wave Generation and Detection Using Light", JOURNAL OF THE MAGNETICS SOCIETY OF JAPAN MAGNETICS JAPAN, vol. 10, no. 6, 1 December 2015 (2015-12-01), pages 307 - 313, ISSN: 18807208
Attorney, Agent or Firm:
SUDA Atsushi et al. (JP)
Download PDF: