Proposed novel design of silica PCF to minimizing the dispersion using OptiFDTD

Sharma, Venimadhav; Chauhan, Sachin; Sharma, Sunil

doi:10.1109/icraie.2016.7939593

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Monochromatic Strehl Ratio Simulation1

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2023

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“…FDTD wave simulation is performed using OptiFDTD software [21]. Starting from a plane wave, a complex electric field is propagated numerically through the MLDOE.…”

Section: Monochromatic Strehl Ratio Simulationmentioning

confidence: 99%

Thickness optimization algorithm to improve multilayer diffractive optical elements performance

Laborde¹,

Loicq

HASTANIN³

et al. 2023

Appl. Opt.

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The diffractive zone thicknesses of conventional diffractive optical elements (DOEs) are generally obtained using the thin element approximation (TEA). However, the TEA yields inaccurate results in the case of thick multilayer DOEs (MLDOEs). The extended scalar theory (EST) is an alternative thickness optimization method that depends on the diffractive order and the optimization wavelength. We developed an algorithm to research suitable EST input parameters. It combines ray-tracing and Fourier optics to provide a performance estimate for each EST parameter pair. The resulting “best” MLDOE designs for three different material combinations are analyzed using rigorous finite-difference time-domain. Compared to the TEA, the proposed algorithm can provide performing zone thicknesses.

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“…FDTD wave simulation is performed using OptiFDTD software [21]. Starting from a plane wave, a complex electric field is propagated numerically through the MLDOE.…”

Section: Monochromatic Strehl Ratio Simulationmentioning

confidence: 99%