Study on angular and polarization dependence of optical force in multilayered dielectric coatings for optical devices
Year: 2026
Type: article
Abstract: Recent optical force research has extended from microscopic manipulation to the actuation of macroscopic optical devices, for which multilayered dielectric-coated reflectors provide important platforms for studying optical-force-induced displacement. Such responses are commonly interpreted primarily in terms of incident optical power under near-normal incidence. However, under oblique incidence, the distinct boundary conditions and intralayer electromagnetic-field distributions of TE/TM polarizations cause the optical force distribution to depend on both incidence angle and polarization state. In this study, we investigate a SiO 2 /ZrO 2 multilayered dielectric mirror excited by a 527 nm pulsed laser at incidence angles of 15 ∘ and 45 ∘ under five calibrated polarization states. CWT/ICWT analysis identifies a reproducible high-frequency displacement band at 245-295 kHz. Its interpretation as a characteristic spectral signature of the optical-force-driven mechanical-mode response is supported by the 247.7 kHz reference mechanical frequency and a strongly coupled three-dimensional mode near 246.21 kHz. Across the paired excitation conditions, the peak displacement in this band increases with the corresponding single-pulse energy and is larger at 15 ∘ than at 45 ∘ . The normalized response also exhibits polarization-dependent modulation, with the polarization sensitivity increasing from 5.742% at 15 ∘ to 11.727% at 45 ∘ and a bootstrap-estimated difference of 5.985% (95% CI: 2.935-8.826%). These results provide experimental evidence for angle- and polarization-dependent optical-force responses in multilayered dielectric mirrors and highlight the importance of controlling incidence angle and polarization in macroscopic optical-force measurements.
Source: Optics Express
DOI: 10.1364/oe.611442
Authors: Siyu Huang, Chunyang Gu, XI Qiao, Fengzhou Fang
Institution: Tianjin University
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,270
OpenAlex ID: W7220964026