Plasmonic spectroscopic sensor and cuvette therefor

摘要

A spectroscopic measurement system, which may utilize multiple plasmonic filters associated with a cuvette to monitor different wavelengths of light. The spectroscopic measurement system may measure absorbance and or fluorescence, and may have built-in low cost CMOS image sensor(s). Reagents and samples may be introduced to the cuvette from a fluidics manifold. Multiple sets of combined cuvettes, image sensors and plasmonic filters may utilize a single fluidics manifold for reagent and sample distribution.

主权项

1. A spectrometer system comprising:
a light source and a two dimensional sensor, the two dimensional sensor having a plurality of light-receiving pixels, a collimating element configured to collimate said light from said light source to provide collimated light, a cuvette having a first and second at least partially mirrored surfaces arranged to contain a fluid sample, wherein said collimated light from said light source is directed through said cuvette, and a plasmonic filter set including a plurality of plasmonic filter patches formed on a substrate, the plasmonic filter set positioned after said collimating element and before said two dimensional sensor, wherein each one of said plasmonic filter patches comprises dielectric and metallic regions configured to differentially transmit selected wavelengths of said collimated light received from said collimating element to corresponding one or more of pixels among the plurality of light-receiving pixels of said two dimensional detector that are designated to said one of the plasmonic filter patches, wherein said selected wavelengths of at least some of the plurality of plasmonic filter patches differ from each other so that intensities of light received at said one or more of the designated pixels through respective ones of said at least some of the plurality of plasmonic filters patches indicate spectroscopic information of the fluid sample.