Photonics Research, Volume. 7, Issue 7, 754(2019)
Reconfigurable generation of optical vortices based on forward stimulated intermodal Brillouin scattering in subwavelength-hole photonic waveguides
Fig. 1. (a) Schematic diagram of optical vortex (OV) generation based on forward stimulated intermodal Brillouin scattering. A circularly polarized fundamental mode (
Fig. 2. (a) Silica-glass subwavelength-hole waveguide (SWHW) suspended in the air, together with the Cartesian coordinates. (b) Intensity profiles of the circularly polarized fundamental mode and the three lowest-order optical vortex modes (OVMs), together with the corresponding compositions of the conventional even/odd hybrid modes for
Fig. 3. (a) Dispersion curves for the acoustic modes with the lowest radial mode number (
Fig. 4. Real and imaginary parts of the typical optical force distributions for the three types of angular momentum (AM) transfer processes, PROC1, PROC2, and PROC3, which involve different higher-order hybrid optical modes:
Fig. 5. Color maps displaying the 3 dB coupling length
Fig. 6. Spatial evolution of the optical and acoustic powers in PROC1 in silica-glass SWHW with
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Dae Seok Han, Myeong Soo Kang. Reconfigurable generation of optical vortices based on forward stimulated intermodal Brillouin scattering in subwavelength-hole photonic waveguides[J]. Photonics Research, 2019, 7(7): 754
Category: Physical Optics
Received: Mar. 15, 2019
Accepted: May. 10, 2019
Published Online: Jun. 21, 2019
The Author Email: Myeong Soo Kang (mskang@kaist.ac.kr)