What question did this study set out to answer?

To develop and validate a hybrid optical modeling framework combining ray optics and Gaussian beamlets to simulate light propagation across inhomogeneous refractive media efficiently.

September 3, 2025Optics and Lasers in EngineeringOpen Access

A ray–Gaussian beamlet hybrid model for simulating light propagation in inhomogeneous refractive media

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Authors

ZLZhiming LinXi'an Jiaotong University YLYan LiUniversité Claude Bernard Lyon 1 KLKaihui LiuPeking University

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Implication

Simulation study demonstrates accurate wavefront reconstruction in inhomogeneous refractive media, indicating high computational fidelity for optical diagnostics and imaging.

Key Points

To develop and validate a hybrid optical modeling framework combining ray optics and Gaussian beamlets to simulate light propagation across inhomogeneous refractive media efficiently.
Discretized incident optical fields into ray bundles traced through non-uniform media to capture refractive deflection.
Modeled individual ray contributions via off-axis Gaussian beamlets and superimposed them to reconstruct the complete complex wavefront on the imaging plane.
Tested and validated the algorithm using synthetic cylindrical geometries and computational fluid dynamics (CFD) flow fields across varying beamlet overlap factors (P = W/D).
Optimal reconstruction occurred at overlap factors of P ≥ 1, whereas smaller values produced artificial high-frequency artifacts.
Amplitude and phase deviations remained within 10⁻³ of the reference solutions across all test cases, with robust capture of steep refractive index gradients.

Cite This Study

Lin et al. (2025) studied this question.

synapsesocial.com/papers/6a0f591696ccf432805fa16c https://doi.org/10.1016/j.optlaseng.2025.109300

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Implication

Simulation study demonstrates accurate wavefront reconstruction in inhomogeneous refractive media, indicating high computational fidelity for optical diagnostics and imaging.

A ray–Gaussian beamlet hybrid model for simulating light propagation in inhomogeneous refractive media

Discussion

Member takes

Implication

Key Points

Cite This Study

A ray–Gaussian beamlet hybrid model for simulating light propagation in inhomogeneous refractive media

Discussion

Member takes

Implication

Key Points

Cite This Study

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