Imaging SPR apparatus

Details Imaging SPR apparatus Imaging SPR apparatus

2005-03-01

2005-03-01

Toatley, Jr., Gregory J. (Department: 2877)

Optics: measuring and testing

Of light reflection

Reexamination Certificate

active

06862094

ABSTRACT:
A two-dimensional imaging surface plasmon resonance (SPR) apparatus for optical surface analysis of a sample area on a sensor surface is disclosed. The apparatus comprises a sensor surface layer of a conductive material that can support a surface plasmon, such as a free electron metal, e.g. gold, silver or aluminum, a source of electromagnetic beams of two or more wavelengths that illuminate a two-dimensional surface area from either the front or the backside of the sensor surface layer, and a detector for simultaneous, or pseudo simultaneous, detection of two or more wavelengths of reflected intensities from the two-dimensional surface area, providing two or more two-dimensional images of the surface area, the two-dimensional images being a function of the effective refractive index at each point on the surface area. The two-dimensional images put together result in a color image. The apparatus is suitable for use in biological, biochemical, chemical and physical testing.

REFERENCES:
patent: 6600563 (2003-07-01), Bahatt et al.
patent: WO 9834098 (1998-08-01), None
patent: WO 9930135 (1999-06-01), None

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