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Photonic toroidal vortex
Chenhao Wan, Qian Cao, Jian Chen +2
Toroidal vortices are whirling disturbances rotating about a ring-shaped core while advancing in the direction normal to the ring orifice. Toroidal vortices are commonly found in n…
Spin-orbit coupling within tightly focused circularly polarized spatiotemporal vortex wavepacket
Jian Chen, Lihua Yu, Chenhao Wan +1
Spin-orbital coupling and interaction as intrinsic light fields characteristics have been extensively studied. Previous studies involve the spin angular momentum (SAM) carried by c…
Experimental demonstration of cylindrical vector spatiotemporal optical vortex
Jian Chen, Chenhao Wan, Andy Chong +1
We experimentally generate cylindrically polarized wavepackets with transverse orbital angular momentum, demonstrating the coexistence of spatiotemporal optical vortex with spatial…
Photonic orbital angular momentum with controllable orientation
Chenhao Wan, Jian Chen, Andy Chong +1
Vortices are whirling disturbances commonly found in nature ranging from tremendously small scales in Bose-Einstein condensates to cosmologically colossal scales in spiral galaxies…