READOUT SENSOR FOR A BIOCHEMICAL FLUIDIC CHANNEL BIO-SENSOR USING A DUAL HETERODYNE INTERFEROMETER

摘要

The present invention relates to a biochemical fluidic channel read-out sensor which can obtain stability for a long time using a dual heterodyne interferometer. The biochemical fluidic channel read-out sensor comprises: a sample input device having fluid channels; and a dual beam generator for dividing light generated from a light source into first and second beams in parallel. A first interferometer is formed by the first beam, and a second interferometer is formed by the second beam. The first and second interferometers are formed of the same light route in a state of being separated from each other at the distance between the first and second beams. The dual heterodyne interferometer of the biochemical fluidic channel read-out sensor implements the two interferometers actually having the same route in the optical structure of one interferometer using dual beams. Thus, the biochemical fluidic channel read-out sensor obtains the stability for a long time. [Reference numerals] (AA) Metal nanoparticle; (BB) Adhesive strength; (CC,FF) Support; (DD) Measure the adhesive strength; (EE) Metal-coated probe of an AFM