Optical resonance analysis system
View Patent ↗An optical resonance analysis system comprising a sensor means ( 60 ) and an illumination means ( 400 ) for generating non-monochromatic illumination. The illumination means ( 400 ) further comprises a means for generating illumination at a plurality of angles, a lens system for projecting said illumination at said plurality of angles ( 390 ) and a dispersive device ( 380 ) for dispersing said illumination at each of said plurality of angles so that there is a correlation between said plurality of angles and the wavelengths of said illumination such that a resonance condition is generated on said sensor mean ( 60 ) for all wavelengths generated by said non-monochromatic source simultaneously. The analysis system also comprises a detection means ( 90 ) for detecting the reflected or transmitted illumination. Another embodiment comprises an anamorphic imaging means ( 120 ).
1. A method for analysis of a sensor surface comprising an array of sites, the method comprising:
illuminating the sensor surface with a collimated beam of light so that the light is reflected at the surface;
imaging the reflected light on a detector such that each site on the sensor corresponds to a zone of the detector;
scanning the illumination angle to impinge on the sensor at different angles; measuring the illumination angle;
measuring a peak of light intensity on the zone of the detector; and determining for each site on the sensor surface a shift in the peak of light intensity for the illumination angle.
2. The method of claim 1 , wherein the image forming is based on surface plasmon resonance at the sensor surface.