Accession Number:

AD0912785

Title:

Magneto-Optic Interactions.

Descriptive Note:

Final rept. 6 Mar 72-Mar 73,

Corporate Author:

RCA LABS PRINCETON NJ

Report Date:

1973-08-01

Pagination or Media Count:

91.0

Abstract:

The most promising approaches for bubble domain sensing are 1 magneto-resistive detectors MRD, and 2 magneto-optical detectors MOD. These two types of detectors are the subject of the report. For MOD a garnet film with high Faraday Rotation FR is desirable. Data are presented showing the effect of Bi-doping on the FR of YIG. Data are also presented on the FR of a large number of other rare earth iron garnets. The data indicate that a lens-less all-solid-state MOD is feasible using an edge-emitting light-emitting diode of GaAsAl and a bubble film of Bi3-2xCa2xVxFe5-x012 x approximately 1.1 grown on a nonmagnetic garnet substrate such as Sm3Ga5012In, or a Bi-containing LPE film on a Gd3Ga5012 substrate. For a MRD, the advantageous design is one that utilizes a chevron expander with the detector formed by interconnecting the chevrons in a column to form a staggered continuous circuit. The permalloy thickness for the detector should be the same as that for the propagation elements. Author

Subject Categories:

  • Electrooptical and Optoelectronic Devices
  • Optics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE