Accession Number:

ADA021673

Title:

High Density Optical Memory.

Descriptive Note:

Final technical rept.,

Corporate Author:

ILLINOIS UNIV AT URBANA-CHAMPAIGN COORDINATED SCIENCE LAB

Personal Author(s):

• Knoebel,H. W.
• Krone,H. V.
• Kirkwood,B. D.
• Burt,J. V.
• Harris,D. G.

Report Date:

1975-11-01

Pagination or Media Count:

105.0

Abstract:

The purpose of this research is to study the problems associated with an experimental read-write, random access optical memory and to demonstrate its feasibility. The memory element employed is the M sub A color center in KClNaCl. The fact that it is extremely well studied and that the writing wavelength is in the visible range determined its choice for this study. Topics discussed in the report include the following Color center physics Diffraction limited focusing and heating effects Crystal preparation Thermo electric cooling Polarization control Deflection systems Memory controller Computer interface Experimental results.

Descriptors:

• *MEMORY DEVICES
• ELECTROOPTICS
• RANDOM ACCESS COMPUTER STORAGE
• COMPUTER APPLICATIONS
• POTASSIUM CHLORIDE
• SODIUM CHLORIDE
• COLOR CENTERS

Subject Categories:

• Computer Hardware

Distribution Statement:

APPROVED FOR PUBLIC RELEASE