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Two-dimensional optical multiple-order differentiations based on spatial spectrum modulation

delete2024-06-21
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OA
AI
Y
Yizhe Chen
D
Ding Yan
X
Xiangwei Wang
T
Tong Qi
高
高玮 (Wei Gao) *
DOI：10.1364/OE.528982delete
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Abstract

Abstract

En 中文
Optical differential operations have recently attracted considerable attention owing to the capabilities of ultrafast speed and low power consumption. The transfer function, which embodies the frequency-domain characteristics of differential systems, plays an important role in differentiator design. Here, we report a super-Gaussian aperture differential filter, and we reveal unique characteristics of odd- and even-order transfer functions and corresponding differential effects via spatial spectrum modulation. We show that the feature of the transfer function is well maintained, and more precise differentiation can be achieved using the designed filter. Twodimensional first- to fifth-order full and partial differentiations are implemented both theoretically and experimentally. Our work provides an approach for engineering customized multiple-order differentiators and promotes the advancements of related areas such as optical analog computing and image processing. (c) 2024 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement
Keywords:
RADIAL HILBERT TRANSFORM
AMPLITUDE

Journal

Optics Express cover
Optics Express
IF:
3.3
Papers:
6.1W
Citations:
14.3W

Organization

No organization information available