Presentation Information
[16a-P01-4]Group velocity dependence of spin-angular momentum texture in space-time surface plasmon polariton wavepackets
〇Kotaro Kihara1, Kei Motoi1, Naoki Ichiji2, Atsushi Kubo1 (1.Univ. of Tsukuba, 2.The Univ. Tokyo)
Keywords:
Surface Plasmon Polariton,Structured light,Oprical Spin
Numerical simulations of space-time (ST) surface plasmons, the surface-wave counterparts of ST wave packets—a class of structured light—were conducted to investigate the electromagnetic field distribution and the dependence of spin angular momentum (SAM) on group velocity, within the framework of a Minkowski model.
The SAM in each dimensional component exhibits characteristics such as positive/negative inversion and spatial structural variations, which are influenced by the propagating medium and the group velocity.
The SAM in each dimensional component exhibits characteristics such as positive/negative inversion and spatial structural variations, which are influenced by the propagating medium and the group velocity.
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