Optical sensor including a Bragg grating structure for enhanced

Details Optical sensor including a Bragg grating structure for enhanced Optical sensor including a Bragg grating structure for enhanced

1992-05-19

1993-05-11

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

356128, 359572, 385 37, H01J 314

Patent

active

052104044

ABSTRACT:
This invention describes a technique for improving the sensitivity of a resonant mirror sensor which has particular applications in areas involving sensing at an interface such as immunosensing using immobilized antibodies. By the introduction of a Bragg grating structure in the sensor, there is produced enhanced dispersion and hence enhanced sensitivity in the region close to the band edge. This improves the detection limit of the sensor without changing the composition or involving the sensor size and allows more sensitive operation at reduced incident angles.

REFERENCES:
patent: 4815843 (1989-03-01), Tiefenthaler et al.
patent: 4857273 (1989-08-01), Stewart
patent: 5082629 (1992-01-01), Burgess, Jr. et al.
C. Dahne, et al, "Detection of Antibody-Antigen reactions at a glass liquid interface: A novel fibre-optic concept", Proc. SPIE, vol. 514 (1984), p. 75.
P. B. Daniels, et al, "Surface plasmon resonance applied to immunosensing", Sensors and Actuators, 15 pp. 11-18, (Feb. 8, 1988).
B. Liedberg, et al., "Surface plasmon resonance for gas detection and biosensing", 4, pp. 299-304 (May-Jun. 1983).
P. M. Nellen, et al, "Integrated optical input grating couplers as biochemical sensors", Sensors and Actuators, 15 (Mar. 1988) pp. 285-295.
E. E. Hardy, et al, "Coated optical guides for spectrophotometry of chemical reactions", Nature, vol. 257, Oct. 1975, pp. 666-667.
M. T. Flanagan, et al, "Surface plasmon resonance and immunosensors", Electron. Letts., Nov. 8, 1984, vol. 20, No. 23, pp. 968-970.
N. J. Harrick, "Internal Reflection Spectroscopy", 1967, John Wiley & Sons.

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