High sensitivity readout sensor for a fluidic channel using an exactly balanced heterodyne interferometer

A new, very well balanced heterodyne interferometer scheme which suffers very low common mode drift is described. Potential use of this novel interferometer for readout sensor of a biochemical reaction is discussed. Our preliminary measurement results show that an 8.7×10 -7 refractive index unit can...

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Bibliographic Details
Main Authors: Seunghyun Yoon, Youngkyu Park, Hee-Dok Choi, Kyuman Cho
Format: Conference Proceeding
Language:English
Subjects:
Biomedical optical imaging
Laser beams
Optical interferometry
Optical mixing
Optical polarization
Optical reflection
Optical sensors
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Summary:A new, very well balanced heterodyne interferometer scheme which suffers very low common mode drift is described. Potential use of this novel interferometer for readout sensor of a biochemical reaction is discussed. Our preliminary measurement results show that an 8.7×10 -7 refractive index unit can be measured.
DOI:10.1109/IQEC-CLEO.2011.6194142