Chip level waveguide sensor

Details Chip level waveguide sensor Chip level waveguide sensor

1996-01-16

1998-04-07

Ullah, Akm E.

Optical waveguides

Optical waveguide sensor

25022718, G02B 600

Patent

active

057374570

ABSTRACT:
Waveguide sensors are formed on a chip package which contains at least one source and at least one detector. Simple waveguide elements are mounted on the chip. Waveguide defining elements can also be formed integrally with the chip package so that simple waveguide bodies can be inserted or removed. Various geometries of source, reference detector, and sensing detector can be produced. A liquid waveguide sensor is formed by filling a waveguide channel with a liquid reagent or reagents homogeneously dispersed in sol-gels. Sensing waveguides are made of or contain chemistries or biochemistries or are uncoated. Reference waveguides are made of or contain chemistries, biochemistries or materials which are inert to the analyte (sample) of interest. The chip geometries are such that absorption, fluorescence, and refractive index measurements can be made.

REFERENCES:
patent: 5307146 (1994-04-01), Porter et al.
patent: 5340715 (1994-08-01), Slovacek et al.

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