ENGLISH

Azimuthal Walsh Filters: A Tool to Produce 2D and 3D Light Structures

By Indrani Bhattacharya , Lakshminarayan Hazra

Book information

Publisher
Springer Singapore;Springer
Year
2020
ISBN
9789811560989, 9789811560996
DOI
10.1007/978-981-15-6099-6
Language
english
Format
PDF
Filesize
12 MB (12425176 bytes)
Series
Progress in Optical Science and Photonics 10
Edition
1st ed.
Pages
XII, 114\123
Time added
2021-01-06 05:41:07
Image and Speech ProcessingLasersOptical Devices; MicrowavesPhotonicsPhysics; OpticsRF and Optical Engineering; Numerical and ComputatSimulation; Signal

Description

This book explores the possibility of using azimuthal Walsh filters as an effective tool for manipulating far-field diffraction characteristics near the focal plane of rotationally symmetric imaging systems. It discusses the generation and synthesis of azimuthal Walsh filters, and explores the inherent self-similarity presented in various orders of these filters, classifying them into self-similar groups and sub-groups. Further, it demonstrates that azimuthal Walsh filters possess a unique rotational self-similarity exhibited among adjacent orders. Serving as an atlas of diffraction phenomena with pupil functions represented by azimuthal Walsh filters of different orders, this book describes how orthogonality and self-similarity of these filters could be harnessed to sculpture 2D and 3D light distributions near the focus.

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