Spin-controlled photonics via temporal anisotropy

TL;DR

This paper investigates how anisotropic temporal slabs in temporal metamaterials can manipulate wave-spin properties, enabling spin-controlled photonic operations with potential applications in communications and quantum technologies.

Contribution

It introduces the concept of anisotropic temporal slabs for spin manipulation, demonstrating novel spin-dependent effects and applications in photonics.

Findings

Effective manipulation of wave-spin dimension demonstrated

Spin-dependent analog computing capabilities shown

Spin-orbit interaction effects for vortex generation achieved

Abstract

Temporal metamaterials, based on time-varying constitutive properties, offer new exciting possibilities for advanced field manipulations. In this study, we explore the capabilities of anisotropic temporal slabs, which rely on abrupt changes in time from isotropic to anisotropic response (and vice versa). Our findings show that these platforms can effectively manipulate the wave-spin dimension, allowing for a range of intriguing spin-controlled photonic operations. We demonstrate these capabilities through examples of spin-dependent analog computing and spin-orbit interaction effects for vortex generation. These results provide new insights into the field of temporal metamaterials, and suggest potential applications in communications, optical processing and quantum technologies.