Optical chemical sensor and method using same employing a multip

Details Optical chemical sensor and method using same employing a multip Optical chemical sensor and method using same employing a multip

1995-02-22

1996-11-19

Healy, Brian

Optical waveguides

Optical waveguide sensor

385 14, 385 37, 385130, 385131, 422 681, 25022711, 25022714, 250576, G02B 600, G01N 1506

Patent

active

055771378

ABSTRACT:
A fluorescent sensor for chemical analysis has a light source, an optical waveguide, and a detector. Fluorophores are associated with the optical waveguide. When an impervious waveguide is used, a fluorophore-containing layer is applied to a surface of the waveguide. The fluorophores are excited by a laser, a light emitting diode, an electroluminescent source or a lamp source emitting light propagating at angles to the waveguide. The light source is modulated. A mirror can be used to direct the light beam. The angle of light incidence on the waveguide can be altered by moving the waveguide itself. The waveguide traps the laser-induced fluorescence and projects fluorescence signals through a suitable filter to a photodetector or otherwise wavelength-specific photodetector positioned near the waveguide structure. Remote operation of the sensor is achieved using optical fibers. Patterned waveguides allow multiple excitation sources to illuminate multiple fluorescent probe materials. The change in fluorescence from each fluorophore is sensed as a vector response which is evaluated using digital signal processing. The sensor uses steady state fluorescence and fluorescence decay information to determine identity and concentration of analytes of interest. The invention is used for chemical analysis of gases or of liquid materials.

REFERENCES:
patent: Re31879 (1985-05-01), Lubbers et al.
patent: 4050895 (1977-09-01), Hardy et al.
patent: 4548907 (1985-10-01), Seitz et al.
patent: 4582809 (1986-04-01), Block et al.
patent: 4654532 (1987-03-01), Hirschfeld
patent: 4803049 (1989-02-01), Hirschfeld et al.
patent: 4815843 (1989-03-01), Tiefenthaler et al.
patent: 4818710 (1989-04-01), Sutherland et al.
patent: 4844613 (1989-07-01), Batchelder et al.
patent: 4877747 (1989-10-01), Stewart
patent: 4880752 (1989-11-01), Keck et al.
patent: 4889690 (1989-12-01), Opitz et al.
patent: 4929561 (1990-05-01), Hirschfeld
patent: 4980278 (1990-12-01), Yamada et al.
patent: 5019350 (1991-05-01), Rhum et al.
patent: 5045282 (1991-09-01), Kritzman et al.
patent: 5093266 (1992-03-01), Leader et al.
patent: 5094517 (1992-03-01), Franke
patent: 5094959 (1992-03-01), Allen et al.
patent: 5096671 (1992-03-01), Kane et al.
patent: 5114676 (1992-05-01), Leiner et al.
patent: 5120131 (1992-06-01), Lukosz
patent: 5127405 (1992-07-01), Alcala et al.
patent: 5154890 (1992-10-01), Mauze et al.
patent: 5156972 (1992-10-01), Issachar
patent: 5194393 (1993-03-01), Hugl et al.
patent: 5196709 (1993-03-01), Berndt et al.
patent: 5212099 (1993-05-01), Marcus
patent: 5227134 (1993-07-01), Janata
patent: 5237631 (1993-08-01), Gavish et al.
patent: 5302349 (1994-04-01), Dandliker et al.
patent: 5308581 (1994-05-01), Lippitsch et al.
patent: 5315672 (1994-05-01), Padovani
patent: 5324635 (1994-06-01), Kawase et al.
patent: 5344784 (1994-09-01), Attridge
patent: 5447845 (1995-09-01), Chu et al.
Levy, D., Journal Of Non-Crystalline Solids, vol. 147-148, pp. 508-517 (1992).
Reisfeld and Jorgensen, Structure And Bonding, pp. 208-256 (1992).
Zusman et al., Journal Of Non-Crystalline Solids, vol. 122, pp. 107-109 (1990).
Janans et al., "Integrated Planar Optical Imaging System . . . ", Optics Letters, vol. 18, No. 19, pp. 1594-1596 (1993).
Tanguay, "Integrated Optical Information Processing", AFOSR-85-0312, AD-A201 016, Air Force Office Of Scientific Research (1988).
Feddersen et al., "Digital Parallel Acquisition . . . ", Review Of Scientific Instruments, vol. 60, No. 9, pp. 2929-2936 (1989).
Haruvy et al., "Sol-Gel Preparation of Optically-Clear Supported Thin Film Glasses . . . ", Supramolecular Architecture, pp. 405-424 (1992).
Haruvy et al., "Supported Sol-Gel Thin-Film Glasses . . . ", Submolecular Glass Chemistry & Physics, SPIE vol. 1590, pp. 59-70 (1991).

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