Abstract:
A waveguide spectrometer, comprising at least one planar waveguide chip (10) with at least one waveguide extending from an inlet face (F) to a reflective surface (105), in which an incident beam (11) is injectable, to achieve counter propagating optical signals inside the planar waveguide chip (10),wherein a multiplicity of sampling elements (1040) configured to out-couple light from the interfering guided optical signals and photo detectors is arranged in or on the planar waveguide chip (10), while sampling elements (1040) and photo detectors are electrically connected to an electronic read out system is created, showing enhanced throughput and spectral bandwidth. This is reached by beam expanding means located ahead the inlet face (F) of the planar waveguide chip (10), resulting in an expanded beam (110') and the single sampling elements (1040) are embedded in the planar waveguide chip (10) or located on a surface plane (1020) of the planar waveguide chip (10) forming a two dimensional grid (104), comprising a multiplicity of lines with sampling elements (1040) spaced apart from each other by an inline pitch (P) in each line, wherein directly neighbouring lines of sampling elements (1040) perpendicular to the propagation direction (z) have a well-defined offset along the propagation direction (z) to each other, defining a sampling interval (d) in propagation direction (z) of the waveguide chip (10).
Abstract:
The present invention discloses a flow cell optical detection system comprising a light source, a flow cell and a light detector, wherein the light detector is arranged in a separate detector unit that is arranged to be releasably attached to a detector interface, the detector interface being in optical communication with the light source and comprises optical connectors for optically connecting the flow cell and the detector unit in the light path from the light source, and wherein the flow cell is an interchangeable unit arranged to be held in position by the detector unit when attached to the detector interface.
Abstract:
An optical probe comprising a light source providing a light that is directed along a first axis; a diffusive element positioned proximate to the light source to receive the light and to diffuse the light as it exits the diffusive element; and a directional optical element directing the light exiting the diffusive element along at least one of the first axis and a second axis generally perpendicular to the first axis to project the light out of the optical probe and onto a subject.
Abstract:
A system includes a transmitter is configured to transmit an electromagnetic signal to a receiver, which is configured to receive the electromagnetic signal and another electromagnetic signal for mixing therewith. Propagation paths of the signals to the transmitter and receiver include a first propagation path of the electromagnetic signal to the transmitter, and a second propagation path of the other electromagnetic signal to the receiver. The arrangement, which is located along either or each of the propagation paths of signals to the transmitter and receiver, is configured to alter the length of a respective propagation path. And the processor configured to recover an amplitude and phase of the transmitted electromagnetic signal, including being configured to receive a sequence of samples of the received electromagnetic signal, and Discrete Fourier Transformation process the sequence of samples.
Abstract:
The present invention relates to a display device comprising at least one display unit and an illumination device for illuminating an edge region of the at least one display unit. The invention further relates to a method for operating such a display device and to an entertainment device comprising such a display device. The display device according to the invention comprises, in addition to the at least one display unit and the illumination device, at least one determination means for determining a color information from an image block of the at least one display unit, and further comprises a color control means for controlling the color and/or color spectrum of the light emitted by the illumination device as a function of the color information. The color information can be obtained from the light which is actually emitted by the display unit in said image block, for which a light detection device having an observation region that is limited to the image block can be provided.
Abstract:
Devices, systems, and methods for measuring tissue oxygen saturation are disclosed. An illustrative spectrometer for interfacing an optical sensor with a display unit includes a number of measurement radiation sources, a number of radiation source fibers each optically coupled to one of the measurement radiation sources, a reflected radiation fiber optically coupled to the optical sensor, a measurement radiation output fiber including an image fiber, and a radiation mixing bar intermediate the radiation source fibers and the measurement radiation output fiber.
Abstract:
An optical assembly is disclosed including two laterally variable bandpass optical filters stacked at a fixed distance from each other, so that the upstream filter functions as a spatial filter for the downstream filter. The lateral displacement may cause a suppression of the oblique beam when transmission passbands at impinging locations of the oblique beam onto the upstream and downstream filters do not overlap. A photodetector array may be disposed downstream of the downstream filter. The optical assembly may be coupled via a variety of optical conduits or optical fibers for spectroscopic measurements of a flowing sample.
Abstract:
The present invention relates to a spectroscopic sensor and a method for manufacturing the same. A spectroscopic sensor according to one embodiment of the present invention includes a fiber layer including a plurality of flexible fibers and a surface plasmon active layer formed on the surface of the fibers. The surface plasmon active layer is densely formed and enables highly reliable spectroscopy. The fiber layer is flexible and facilitates the collection of a target sample.
Abstract:
Systems and methods according to exemplary embodiments of the present disclosure can be provided that can efficiently detect the amplitude and phase of a spectral modulation. Such exemplary scheme can be combined with self-interference fluorescence to facilitate a highly sensitive depth localization of self-interfering radiation generated within a sample. The exemplary system and method can facilitate a scan-free depth sensitivity within the focal depth range for microscopy, endoscopy and nanoscopy.