Optically confined birefringent chalcopyrite heterostructure...

Details Optically confined birefringent chalcopyrite heterostructure... Optically confined birefringent chalcopyrite heterostructure...

2002-08-27

2004-12-21

Ullah, Akm Enayet (Department: 2874)

Optical waveguides

Having nonlinear property

C385S147000

Reexamination Certificate

active

06834149

ABSTRACT:

FIELD OF THE INVENTION
This invention relates generally to the optical detection of a target molecule and more particularly to nonlinear waveguides for quantitative determination of the target molecule.
BACKGROUND OF THE INVENTION
Monitoring the levels of various chemical compounds and agents is important for anti-terrorism, environmental monitoring, the diagnosis, treatment and control of diseases as well as in law enforcement. Applications for monitoring include compact self contained sensors, applicable to remote, real-time sensing of trace impurities, such as: greenhouse gases; smog; smoke stack emissions; toxic chemical agents; toxic biological agents; water pollutants; and similar molecules. Additionally there is a significant need in medical applications for the recognition of immobilized bio-molecules such as with frequency-agile lasers, and for infrared countermeasures in the defense industry.
SUMMARY OF THE INVENTION
In accordance with the present invention, there is provided an optical quantitative detection device comprising: a nonlinear/birefringent waveguide sensor with a top surface for interacting with a target molecule, wherein optical excitation of the sensor enables quantitative discrimination of the target molecule.


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