Ro-Translational Cavity Cooling of Dielectric Rods and Disks

TL;DR

This paper investigates the interaction of dielectric rods and disks with high finesse cavity fields, demonstrating enhanced capture and cooling capabilities for anisotropic nanoparticles, enabling deep quantum regime cooling.

Contribution

It introduces a quantum master equation for anisotropic particles in cavities and shows improved trapping and cooling of rods and disks compared to spherical particles.

Findings

Anisotropic nanoparticles can be captured at higher velocities.

Efficient cavity cooling into the deep quantum regime is achievable.

The derived model includes Rayleigh scattering effects.

Abstract

We study the interaction of dielectric rods and disks with the laser field of a high finesse cavity. The quantum master equation for the coupled particle-cavity dynamics, including Rayleigh scattering, is derived for particle sizes comparable to the laser wavelength. We demonstrate that such anisotropic nanoparticles can be captured from free flight at velocities higher than those required to capture dielectric spheres of the same volume, and that efficient ro-translational cavity cooling into the deep quantum regime is achievable.