[16a-WL1_201-1~11] 3.1 Basic optics and frontier of optics

9:00 AM - 9:15 AM JST(12:00 AM - 12:15 AM UTC)

[16a-WL1_201-1] Observation of femtosecond laser–induced magnetization reversal using
magneto-optical Kerr microscopy

〇Kotaro Kihara¹, Ryota Kida¹, Haruki Yamane², Atsushi Kubo¹ (1.Univ. of Tsukuba, 2.Akita Ind. Tech. Center)

Keywords:

Kerr microscopy,Ultrashort Pulse Laser,Magneto-optical Kerr effect

We have previously investigated the spin angular momentum (SAM) textures associated with surface plasmon polaritons (SPPs). In this presentation, to observe the magnetization induced by this SAM, we developed a magneto-optical Kerr effect (MOKE) microscopy system capable of femtosecond laser excitation. As a demonstration of the system's operation, we observed magnetization reversal induced by femtosecond laser irradiation on a sample.