Simultaneous weak value amplification of angular Goos-H\"anchen and Imbert-Fedorov shifts in partial reflection

TL;DR

This paper demonstrates the simultaneous weak value amplification of angular Goos-H"anchen and Imbert-Fedorov shifts in partial reflection using polarization pre- and post-selection, supported by experimental results and quantum mechanical analysis.

Contribution

It introduces a method for amplifying both GH and IF shifts simultaneously in optical beams through weak measurement techniques.

Findings

Successful experimental amplification of both shifts

Dependence of shifts on angle of incidence analyzed

Quantum mechanical interpretation provided

Abstract

The optical analogue of quantum weak measurements have shown considerable promise for the amplification and observation of tiny optical beam shifts, namely, the Goos-H\"anchen (GH) and the Imbert-Fedorov (IF) shifts. Here, we demonstrate simultaneous weak value amplification of both the angular GH and the IF shifts in partial reflection of fundamental Gaussian beam at planar dielectric interfaces. We employ pre- and post selection schemes with appropriate linear polarization basis states for simultaneous weak measurements and amplification of both these shifts. The experimentally observed enhancement of the beam shifts and their dependence on the angle of incidence are analyzed / interpreted via quantum mechanical treatment of weak measurements.