Optical lattice induced by angular momentum and polygonal plasmonic mode

Area of Science:

• Optics and Photonics
• Plasmonics
• Nanotechnology

Background:

• Optical lattices are crucial for manipulating light.
• Controlling the generation and properties of optical lattices remains a challenge.
• Plasmonic devices offer unique light-matter interaction capabilities.

Purpose of the Study:

• To propose and investigate novel plasmonic devices for generating multipatterned and two-dimensional optical lattices.
• To explore the role of spin-orbit coupling in optical lattice formation.
• To analyze the influence of incident beam properties on lattice patterns.

Main Methods:

• Design and simulation of plasmonic devices.
• Theoretical analysis of spin-orbit coupling effects.
• Investigation of polygonal plasmonic modes.
• Study of incident beam mode properties.

Main Results:

• Demonstrated generation of optical lattices with or without helicity.
• Confirmed the contribution of spin angular momentum, orbital angular momentum, and plasmonic modes to lattice formation.
• Showcased the tunability of lattice patterns by altering incident beam properties.

Conclusions:

• The proposed plasmonic devices offer a compact and tunable platform for generating complex optical lattices.
• This work facilitates the integration of optical lattices into various on-chip applications.
• The findings provide insights into controlling light patterns using spin-orbit coupling in plasmonic systems.