Device and method for detecting changes in the refractive...

Details Device and method for detecting changes in the refractive... Device and method for detecting changes in the refractive...

2005-06-10

2009-11-17

Punnoose, Roy (Department: 2886)

Optics: measuring and testing

Refraction testing

C356S135000, C356S136000, C356S445000

Reexamination Certificate

active

07619724

ABSTRACT:
The device for detecting changes in the refractive index of a dielectric medium comprises: at least one metallic layer (300) ready to be placed in contact with the dielectric medium (200); at least one light source (20) configured to direct transversal magnetic (TM) polarized light towards such metallic layer, so that the light is reflected on such metallic layer; coupling means (10); and at least one detector (31) configured to receive light reflected by the metallic layer and to detect at least one feature of such light. According to the invention, the metallic layer contains a ferromagnetic material. The invention also relates to a method.

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Hermann, C., et al. “Surface-enhanced magneto-optics in metallic multilayer films.”Physical Review B(Condensed Matter and Materials Physics) APS through AIP USA (2001) vol. 64, No. 23, pp. 235422/1-11, 235422-4 and 235422-5.

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