Goos-Hänchen Shifts at 458 nm from DUV Dichroic Laser Mirrors
Abstract
We report polarization- and angle-dependent lateral beam shifts observed at 458~nm upon reflection from a deep-ultraviolet (DUV) dichroic multilayer mirror. These Goos--Hänchen (GH) shifts originate from the phase of the complex Fresnel reflection coefficient and are quantitatively reproduced using a transfer-matrix model. Simultaneous reflectance (R), transmittance (T), and GH shift measurements provide complementary constraints on the coating's amplitude and phase response. The analysis is extended to transmission, predicting analogous phase-induced lateral shifts. In frequency-doubling cavities using dichroic mirrors, these phase effects can accumulate over multiple reflections, leading to deviations from ray-optics predictions that may affect cavity mode structure and resonance conditions. Our results show a GH shift of as much as 2~\textmu m (\bm{≈ 4.4λ}), which, combined with RT data, enables improved characterization of the phase response of the multilayer coating. The p-polarized reflectance is minimized at a pseudo-Brewster angle of \bm{θB ≈ 46∘} at 458~nm, providing a natural reference point around which the GH shift is enhanced.
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BibTeX
@misc{manzoor2026gooshänchen,
title = {{Goos-Hänchen Shifts at 458 nm from DUV Dichroic Laser Mirrors}},
author = {Shamaila Manzoor and Mauro Chiarotti and Paul J. Robert and Nicola Poli},
howpublished = {arXiv},
year = {2026},
month = nov,
doi = {10.48550/arxiv.2611.08120},
eprint = {2611.08120},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2611.08120},
}
RIS
TY - UNPB
TI - Goos-Hänchen Shifts at 458 nm from DUV Dichroic Laser Mirrors
AU - Shamaila Manzoor
AU - Mauro Chiarotti
AU - Paul J. Robert
AU - Nicola Poli
PY - 2026
DA - 2026/11/05
PB - arXiv
DO - 10.48550/arxiv.2611.08120
UR - https://arxiv.org/abs/2611.08120
AB - We report polarization- and angle-dependent lateral beam shifts observed at 458~nm upon reflection from a deep-ultraviolet (DUV) dichroic multilayer mirror. These Goos--Hänchen (GH) shifts originate from the phase of the complex Fresnel reflection coefficient and are quantitatively reproduced using a transfer-matrix model. Simultaneous reflectance (R), transmittance (T), and GH shift measurements provide complementary constraints on the coating's amplitude and phase response. The analysis is extended to transmission, predicting analogous phase-induced lateral shifts. In frequency-doubling cavities using dichroic mirrors, these phase effects can accumulate over multiple reflections, leading to deviations from ray-optics predictions that may affect cavity mode structure and resonance conditions. Our results show a GH shift of as much as 2~\textmu m (\bm{≈ 4.4λ}), which, combined with RT data, enables improved characterization of the phase response of the multilayer coating. The p-polarized reflectance is minimized at a pseudo-Brewster angle of \bm{θ_B ≈ 46^∘} at 458~nm, providing a natural reference point around which the GH shift is enhanced.
ER -