Time-dependent optical force theory for optomechanics of dispersive 3D photonic materials and devices

TL;DR

This paper develops a comprehensive, position- and time-dependent optical force theory for dispersive 3D photonic materials, enabling detailed analysis of optomechanical interactions in complex structures.

Contribution

It introduces a novel theoretical framework applicable to various photonic structures, allowing dynamic analysis of optical forces and their interactions with material excitations.

Findings

Simulation of energy and momentum flow in silicon with structured interfaces

The theory can be applied using existing simulation tools

Enables analysis of optical forces in complex photonic devices

Abstract

We present a position- and time-dependent optical force theory for optomechanics of dispersive 3D photonic materials and devices. The theory applies to media including material interfaces, waveguides, and general photonic crystal structures. The theory enables calculation of the dynamical state of the coupled field-material system and the interference of this state with other excitations of the material, such as surface acoustic waves or phonons. As an example, we present computer simulations of energy and momentum flows through a silicon crystal with anti-reflective structured interfaces. Using commercially available simulation tools, the theory can be applied to analyze optical forces in complex photonic materials and devices.