Resonances in dissipative optomechanics with nanoparticles: Sorting, speed rectification and transverse cooling

TL;DR

This paper explores how dissipative optomechanical interactions in a two-mode cavity setup can be used to sort, speed-rectify, and cool nanoparticles, advancing control over nanoparticle dynamics.

Contribution

It introduces an analytical and numerical study of a two-mode dissipative optomechanical system for nanoparticle manipulation, focusing on size sorting, velocity rectification, and transverse cooling.

Findings

Dissipative dynamics enable particle sorting based on size.

The setup can rectify particle velocities effectively.

Transverse cooling is significantly enhanced in the proposed system.

Abstract

The interaction between dielectric particles and a laser-driven optical cavity gives rise to both conservative and dissipative dynamics, which can be used to levitate, trap and cool nanoparticles. We analytically and numerically study a two-mode setup in which the optical potentials along the cavity axis cancel, so that the resulting dynamics is almost purely dissipative. For appropriate detunings of the laser-drives, this dissipative optomechanical dynamics can be used to sort particles according to their size, to rectify their velocities and to enhance transverse cooling.