Method for optical recording in photo-dichroic glass surfaces

Details Method for optical recording in photo-dichroic glass surfaces Method for optical recording in photo-dichroic glass surfaces

1979-11-15

1981-10-20

Hecker, Stuart N.

Static information storage and retrieval

Radiant energy

Color centers

365121, G11C 1304

Patent

active

042964792

ABSTRACT:
The instant invention is directed to a method for writing and erasing images in the surface of a photosensitive glass which demonstrates photoanisotropic behavior at a mega Hz or higher rate. This is accomplished by utilizing an erasing beam of linearly-polarized red light having about a 45.degree. change in the direction of polarization from that of the writing beam. Also, this invention provides a method for preventing the alteration of an image written into said glass surface, the method involving exposing the area of the image to ultraviolet radiation.

REFERENCES:
patent: 3727194 (1973-04-01), Schneider
Schneider, "Simplified Technique for Storing Information in Photodichroic Alkali Halide Crystals", Applied Optics, vol. 11, No. 6, 6/72, pp. 1426-1427.
Haskal et al., "Subnanosecond Laser Recording on MnBi Thin Films", Applied Optics, vol. 13, No. 4, 4/74, pp. 866-868.

Affiliated with

Also associated with

Rating

Method for optical recording in photo-dichroic glass surfaces does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for optical recording in photo-dichroic glass surfaces, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for optical recording in photo-dichroic glass surfaces will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1494514