Sub wavelength aperture

Details Sub wavelength aperture Sub wavelength aperture

2007-12-18

2011-10-18

Porta, David (Department: 2884)

Radiant energy

Luminophor irradiation

Methods

C250S458100, C250S461100, C250S461200

Reexamination Certificate

active

08039818

ABSTRACT:
There is provided a method of detecting a presence of a luminophore in a detection volume comprising providing excitation radiation in said detection volume. A luminophore is provided in said detection volume being excitable by said excitation radiation. The luminescent radiation is detected to identify the presence of said luminophore in said detection volume. In one aspect of the invention, said luminophore is selected to emit luminescent radiation having a wavelength in said medium that is larger than twice said smallest dimension; and wherein said luminophore is selected to be excitable by excitation radiation having a wavelength in said medium that is smaller than twice said smallest dimension. Accordingly, luminescent radiation is blocked from entering the detector but for the portion present on an interface of the aperture.

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Butkus, B.: “Quantum Dots Lend Simplicity”; Biophotonics International, vol. 11, No. 5, pp. 34-40.

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