Generation Of A Binary Phase Only Filter Using A Laser Scanner

Q. Tang; E. Jager; T. Tschudi

doi:10.1117/12.961619

25 October 1989 Generation Of A Binary Phase Only Filter Using A Laser Scanner

Q. Tang, E. Jager, T. Tschudi

Proceedings Volume 1134, Optical Pattern Recognition II; (1989) https://doi.org/10.1117/12.961619
Event: 1989 International Congress on Optical Science and Engineering, 1989, Paris, France

Abstract

A simple method for generating phase-only filters is proposed. The interference of the Fourier phase value with a tilted plane reference wave is done by computer calculation. This amplitude modulated transmittance function encodes the pure Fourier phase information of the object wave. It acts like an off-axis phase only filter. After the binarization step the filter function is recorded directly into the recording medium in final size using a laser scanner. This results in a binary point-orinted hologram. Compared with the conventional matched filter our binary filter can save the spatial bandwidth product. It further reduces the dynamic range of the Fourier spectrum, thus increasing the diffraction efficiency. We discuss the performces of these filters, present computer simulations and demonstrate experimental results.

Citation Download Citation

Q. Tang, E. Jager, and T. Tschudi "Generation Of A Binary Phase Only Filter Using A Laser Scanner", Proc. SPIE 1134, Optical Pattern Recognition II, (25 October 1989); https://doi.org/10.1117/12.961619

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
6 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Phase only filters

Optical filters

Holograms

Electronic filtering

Diffraction

Laser scanners

Binary data

Show All Keywords

Keywords/Phrases

Search In:

Publication Years