High Verdet Constant Polymer-Magnetic Nanoparticle Materials for Magneto-Optic Devices

Case ID:
UA17-230
Invention:

Polymer-nanoparticle composite materials exhibit much higher Verdet constant performance than the currently-used inorganic metal oxide materials commonly referred to as "garnets," such as terbium gallium garnet (TGG). While TGG has a Verdet constant of around 2000-3000 degrees/Tesla meter, the inventive materials have achieved a Verdet constant of 2500-27,000 degrees/Tesla-meter, representing a 10x enhancement over state of the art TGG material. The inventive materials are also more easily and cheaply processed, than the crystal growth methods required for garnets.

 

Background:
Current high Verdet garnets are used for optical rotator-Faraday applications.

 

Applications:

  • Optical isolaters, esp. for lasers
  • Optical circulators, esp. for fiber optic communications or sensors
  • Biomedical imaging

 

Advantages:

  • High Verdet constant
  • Able to tune Verdet performance
  • Low cost and facile processability
Patent Information:
Contact For More Information:
Laura Silva
Sr. Licensing Manager, COS
The University of Arizona
lauras@tla.arizona.edu
Lead Inventor(s):
Dong-Chul Pyun
Robert Norwood
Keywords: