Time-resolved high frequency near-magnetic field imaging system using magneto-optical effect and femto-second laser

被引：0

作者：

Hashi, Shuichiro ^{[1
]}

Saito, Yuichi ^{[2
]}

Ishiyama, Kazushi ^{[3
]}

机构：

[1] Tohoku Gakuin Univ, Dept Elect & Elect Engn, Sendai, Miyagi, Japan

[2] Lancuster Univ, Dept Phys, Lancuster, England

[3] Tohoku Univ, Elect Commun Res Inst, Sendai, Miyagi, Japan

来源：

PROCEEDINGS OF THE 2024 IEEE JOINT INTERNATIONAL SYMPOSIUM ON ELECTROMAGNETIC COMPATIBILITY, SIGNAL & POWER INTEGRITY: EMC JAPAN/ASIAPACIFIC INTERNATIONAL SYMPOSIUM ON ELECTROMAGNETIC COMPATIBILITY, EMC JAPAN/APEMC OKINAWA 2024 | 2024年

关键词：

femto-second laser; magneto-optical effect; high frequency near magnetic field; PROBE;

D O I：

10.23919/EMCJapan/APEMCOkinaw58965.2024.10585193

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

We constructed high frequency near-magnetic field measurement system composed of time-resolved magneto-optical effect measurements with femtosecond lasers and magnetic garnet thin films. The system can measure the magnetic field in an arbitrary phase of MSL because the laser pulses are synchronized with the signal generator. As a high frequency response of Faraday rotation of magnetic garnet thin film with in-plane isotropic easy axes was evaluated using microstrip line (MSL), the Faraday rotation angle of approximately 0.6 mdeg. even at 40 GHz was confirmed. In addition, we visualized the clear distribution in 300 x 100 mu m area near the center of the line for high-frequency near-magnetic field including phase information when signal at 40 GHz are applied to MSL.

引用

页码：617 / 620

页数：4

共 20 条

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