Optics: measuring and testing – By dispersed light spectroscopy – With raman type light scattering
Reexamination Certificate
2008-07-08
2008-07-08
Evans, F. L (Department: 2877)
Optics: measuring and testing
By dispersed light spectroscopy
With raman type light scattering
Reexamination Certificate
active
07397559
ABSTRACT:
An apparatus and related methods for spectroscopic analysis of analyte molecules is described. The analyte molecules are disposed near a metallic film that is positioned between a first medium on a first side and a second medium on a second side, the second medium being of higher refractive index than the first medium. A radiation source provides excitation radiation that propagates through the second medium toward the metallic film. The second medium and the metallic film are positioned in evanescent communication with respect to the excitation radiation, and the metallic film comprises lithographically patterned features designed to intensify surface plasmon resonance along the metallic film to promote the emission of Raman radiation from the analyte molecules. A radiation detector detects the Raman radiation emitted from the analyte molecules.
REFERENCES:
patent: 5341215 (1994-08-01), Seher
patent: 7012687 (2006-03-01), Blumberg et al.
patent: 7057732 (2006-06-01), Jorgenson et al.
Barnes, W., et al., “Surface Plasmon Subwavelength Optics,” Nature, vol. 424, pp. 824-830, 2003.
Bouhelier, A. et. al., “Plasmon Optics of structured Silver Films,” 2001, American Physical Society, Phys. Rev. B., vol. 63, No. 155404, pp. 1-9.
Brolo, A., et. al., “Enhanced Fluorescence from Arrays of Nanoholes in Gold Film,” 2005, Jrnl. American Chem. Soc., vol. 127, No. 42, pp. 14936-14941.
Futamata, M., “Surface Plamon Polariton Enhanced Raman Scattering . . . Dielectric Prop. of Constituents,” 1995, Amer. Chem. Soc., Langmuir, vol. 11, pp. 3894-3901.
Futamata, M., “Highly-sensitive ATR Raman Spectroscopy using Surface-Plasmon-Polariton,” 2000, Int. J. Vibrational Spectrosc., vol. 4, pp. 9-23.
Hu, W., et. al., “Studying Protein Struct. Changes based on Surface Plasmon Res. and Surface-enhanced Raman Scattering,”2004, Proc. of SPIE, vol. 5327, pp. 88-94.
Kats, W., et al., “Resonance Optical Transmission through . . . Periodically Modul. Metal Films,” 2005, Telecomm. and Radio Eng., ISSN 0040-2508, vol. 63, No. 11, pp. 997-1021.
Rodrigues, K., et. al., “Enhanced Infrared Absorp. of Self-Assembled Alkanethiol Monolayers using . . . Subwavelength Apertures,” 2004, J. Chem. Phys., vol. 121, No. 18, pp. 8671-8675.
Yih, J., et. al., “A Compact Surface Plasmon Res. and Surface-Enhanc., Raman Scattering Sensing Device,” 2004, Proc. of SPIE, vol. 5327, pp. 5-9.
Serulla, D., et. al., “Sensing Molecular Prop. by ATR-SPP Raman Spect. on Electrochem. Struc. Sensor Chips,” 2003, Elsevier Ltd., Electrochimica Acta, vol. 48, pp. 2943-2947.
Evans F. L
Hewlett--Packard Development Company, L.P.
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