Method and apparatus for pixel display and SERS analysis
AssigneeHewlett-Packard Development Company, L.P.
InventorsShih-Yuan Wang, M. Saif Islam
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Abstract
Irradiation devices and methods of amplification and irradiation are disclosed for displaying pixels and Surface Enhanced Raman Spectroscopy (SERS) analysis. The devices include an optical modulator, which may be configured for operation in a variably transmissive state. An active region may be formed in an optical waveguide with the optical modulator configured substantially adjacent at least one surface of the active region.
Claims46
An irradiation device, comprising:
- an optical waveguide comprising an active region disposed therein, wherein the optical waveguide is configured for generating an amplified radiation;
- an optical modulator disposed adjacent to at least one surface of the active region and configured for operation in a variably transmissive state;
- an exposure region disposed adjacent to the optical modulator and configured to be illuminated with a variable intensity of the amplified radiation transmitted through the optical modulator when the optical modulator is configured in the variably transmissive state;
- and
- an area configured to receive a medium of interest within the exposure region and configured to receive an excitation radiation of the amplified radiation.
An irradiation array, comprising a plurality of irradiation devices formed on a substrate, wherein each irradiation device of the plurality of irradiation devices comprises:
- an optical modulator configured for operation in a variably transmissive state;
- an active region formed in an optical waveguide, wherein the optical modulator is adjacent to at least one surface of the active region and is configured for generating an amplified radiation derived from an incident pump radiation impinging on the optical waveguide when the variably transmissive state of the optical modulator is configured as substantially non-transmissive;
- an exposure region adjacent to the optical modulator and configured to be illuminated by the amplified radiation when the optical modulator is configured in the variably transmissive state;
- and
- an area configured to receive a medium of interest within the exposure region and configured to receive an excitation radiation of the amplified radiation.
An amplification and irradiation method, comprising:
- generating an amplified radiation in an active region of an optical waveguide;
- transmitting a variable intensity of the amplified radiation through an optical modulator disposed adjacent to at least one surface of the active region by configuring the optical modulator in a variably transmissive state;
- illuminating an exposure region disposed adjacent to the optical modulator with the variable intensity of the amplified radiation;
- and
- exposing a photo-luminescent compound to the amplified radiation to emit a selected light wavelength.
Dependencies are inferred from the claim text.