Integrated optical luminescence sensor
AssigneeNovartis AG
InventorsBurkhard Danielzik, Dieter Neuschäfer, Michael Pawlak, Gert Ludwig Duveneck
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Abstract
An integrated-optical luminescence sensor having an excitation light beam with a first optical axis (kein), a planar waveguide (1), a sample interacting with the evanescent field thereof, and a detection beam path, with a second optical axis, that comes from the waveguide, and/or a coupling-out grating (7) for coupling out the portion of luminescence light guided in the waveguide, wherein the luminescence light to be detected is physically separate from the excitation light.
Claims17
An integrated-optical luminescence sensor for a sample, said integrated-optical luminescence sensor comprising:
- a light source operable to output an excitation light beam having a first optical axes;
- a planar waveguide operable to receive the excitation light beam and to form a guided wave from the excitation light beam and further operable to create an evanescent field which interacts with the sample to create luminescence light;
- a detector operable to detect at least a portion of the luminescence light;
- and
- at least one of (a) a detection beam path along which travels at least a portion of the luminescence light, said detection beam path having a second optical axis projecting from said planar waveguide, and (b) a coupling-out grating operable to couple out at least a portion of the luminescence light in said waveguide,
- wherein the luminescence light is physically separated from the excitation light beam by at least one of the following:
- a skew geometric arrangement of the first and second optical axis;
- at least one polarization-selective component being located in the detection beam path;
- at least one polarization-selective component being located in a path of the luminescence light coupled out from said coupled-out grating;
- and
- at least one polarization-selective component being located in the portion of the luminescence light coupled out from said coupled-out grating, wherein a coupled-in grating operable to couple in the excitation light beam into said planar waveguide is further operable to act as said couple-out grating.
Dependencies are inferred from the claim text.