Using dichromated gelatin as a diffractive optical storage medium and illustration of multiple applications

Harry K. Ramenah; Paul Bertrand; Patrick Meyrueis

doi:10.1117/1.600698

1 May 1996 Using dichromated gelatin as a diffractive optical storage medium and illustration of multiple applications

Harry K. Ramenah, Paul Bertrand, Patrick Meyrueis

Author Affiliations +

Optical Engineering, Vol. 35, Issue 5, (May 1996). https://doi.org/10.1117/1.600698

We describe the storage of 2000 images of resolution 512 3512 pixels as a regular matrix pattern of 10310 elements, where each element is angularly multiplexed 20 times in a 25-?m thickness of dichromated gelatin emulsion without crosstalk effect. The surface area of the matrix is 1 cm2. We show good concordance of the angular selectivity between the experimental result and theory. The diffraction efficiency of each of the 20 multiplexed images has been measured and has nearly the same value. Examples of reconstructed images for multiple applications are given, for example, storage of 160,000 images on a 3/2-in. floppy-disk format, that is, about 100 minutes of black-and-white films. Applications to automobile cartography and for storing x-ray and weather forecast images are possible. Colored diffractive images are also possible and are illustrated.

Citation Download Citation

Harry K. Ramenah, Paul Bertrand, and Patrick Meyrueis "Using dichromated gelatin as a diffractive optical storage medium and illustration of multiple applications," Optical Engineering 35(5), (1 May 1996). https://doi.org/10.1117/1.600698

Published: 1 May 1996

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