[7p-N106-1~14] 3.1 Basic optics and frontier of optics

4:00 PM - 4:15 PM JST(7:00 AM - 7:15 AM UTC)

[7p-N106-10] Control of Three-Dimensional Spin Angular Momentum Orientation in Space-time Surface Plasmon Wave-packets

〇Kotaro Kihara¹, Kei Motoi¹, Naoki Ichiji², Atsushi Kubo¹ (1.Univ. of Tsukuba, 2.The Univ. Tokyo)

Keywords:

Surface plasmon polariton,Spin Angular Momentum,structured light

The space-time surface plasmon polariton (ST-SPP), a structured form of SPP, exhibits a three-dimensional spin angular momentum (SAM) structure. In this study, we analyzed the SAM texture of ST-SPPs propagating along a gold-vacuum interface and demonstrated that the distribution of SAM components varies with the tilt of the spectral plane used to generate the ST-SPPs.