Imaging of spinor gases

TL;DR

This paper investigates the optical properties of spinor condensates, demonstrating how their birefringence and optical activity can be used to image and distinguish different spin textures and orders in spin-1 bosonic gases.

Contribution

It introduces a method to utilize optical birefringence and activity for imaging and differentiating spin textures in spinor gases, highlighting tunable effects based on light frequency.

Findings

Spinor gases exhibit optical activity and birefringence depending on their spin order.

Tuning light frequency isolates different optical effects.

These optical features enable imaging of spin textures.

Abstract

We explore the dielectric properties of spinor condensates. Gases with vector (nematic) order, such as spin-1 condensates with ferromagnetic (antiferromagnetic) interactions, display optical activity (birefringence). This optical activity/birefringence is respectively seen for light detuned from resonance by a frequency which is not too large compared with the fine/hyperfine structure. Careful tuning of the light frequency can isolate either of these two effects. These features can be used to image spin textures in clouds of spin 1 bosons, and to discern states showing different types of spin order.