Comment on "Spatial Coherence and Optical Beam Shifts"

TL;DR

This comment demonstrates that their simulation data aligns with experimental results on beam shifts and clarifies the influence of spatial coherence on Goos-Hänchen shifts, challenging previous claims.

Contribution

The authors show their simulation method agrees with experimental data and clarify the effect of spatial coherence on beam shifts, countering prior assertions.

Findings

Simulation data matches experimental measurements

Spatial coherence affects Goos-Hänchen shifts

Disagreement with previous claims on coherence effects

Abstract

This comment is to show that our simulation data, based on our theory and method in Ref. [J. Phys. B 41, 055401 (2008)], are also in agreement with the experimental data presented for $D_{p}-D_{s}$ in Ref. [Phys. Rev. Lett. \textbf{109}, 213901 (2012)]. We also demonstrate how to show the effect of spatial coherence on the GH shifts in this comment, therefore we disagree with the claims in Ref. [Phys. Rev. Lett. \textbf{109}, 213901 (2012)].