Abstract:
One embodiment of a photodetecting semiconductor apparatus is provided with a sensor chip, a resin-sealed package in which the sensor chip is resin-sealed with a transparent resin, and a color filter disposed on the surface of the sensor chip, with a sensor circuit unit and a light-sensitive element group being formed in the sensor chip. The light-sensitive element group is configured with a color light-sensitive element having a sensitivity peak for color and an infrared light-sensitive element having a sensitivity peak for infrared light. The color light-sensitive element includes a red light-sensitive element having a sensitivity peak for red, a green light-sensitive element having a sensitivity peak for green, and a blue light-sensitive element having a sensitivity peak for blue.
Abstract:
An imaging-type near-field optical microscope mainly comprises a light source and a photodetector array. The array functions as imaging array where each cell or photodetector has subwavelength dimensions. A sample under test is disposed in optical near field of the photodetectors, e.g., on surface of the array. As a result of subwavelength dimensions and near-field effect, resolution can break the diffraction limit and even reach nanoscale. The microscope has a fast speed, works with soft sample and sample in solution, and is capable of dynamic observations. In addition, the array surface doubles as a platform for molecule manipulation.
Abstract:
A photodetector and method for making the same are disclosed. The photodetector includes a photodetector die mounted on a substrate, an infrared filter, and an encapsulating layer. The infrared filter is positioned over the photodetector, the infrared filter blocking light in an infrared region of the optical spectrum while allowing light in a visible region of the optical spectrum to reach the photodetector die. The encapsulating layer surrounds the photodetector and the substrate, the infrared filter being embedded in the encapsulating layer, which is transparent to light in the visible region.
Abstract:
A photodetector of the invention is characterized by having a plurality of detector elements that are arranged over a light-transparent substrate and are connected in parallel. A foldable portable communication tool having two display portions of the invention is characterized by including one photodetector which includes a plurality of detector elements connected in parallel.
Abstract:
A microlens structure that includes a wedge formed to support and tilt the microlens is disclosed. The wedge results from heating a layer of patterned flowable material. The degree and direction of incline given to the wedge can be controlled in part by the type of patterning that is performed.
Abstract:
An imaging-type near-field optical microscope mainly comprises a light source and a photodetector array. The array functions as imaging array where each cell or photodetector has subwavelength dimensions. A sample under test is disposed in optical near field of the photodetectors, e.g., on surface of the array. As a result of subwavelength dimensions and near-field effect, resolution can break the diffraction limit and even reach nanoscale. The microscope has a fast speed, works with soft sample and sample in solution, and is capable of dynamic observations. In addition, the array surface doubles as a platform for molecule manipulation.
Abstract:
A method and system for detecting and monitoring a temporal and spatial distribution of a light beam are provided. A semiconductor substrate (120) having a given doping concentration range is partially exposed to an incident laser beam (150). Each part of the semiconductor structure (120) which is exposed to the laser beam is provided with an electrical contact (145), which outputs a voltage which is directly related to the optical power or energy incident on the exposed area. The thermo-voltage is produced by the laser induced thermal gradients. The sensitivity and inter-pixel cross-talk is determined by pixel pitch, doping concentration and window opening (110). Depending of the design, each pixel might be sensitive to the temporal variation of the laser beam.
Abstract:
The invention relates to a Fourier spectrometer (1), for determining spectral information of an incident optical input signal (2) and a method for producing such a Fourier spectrometer. The aim of said invention is to allow the accurate production of a small-sized and compact Fourier spectrometer, by means of which, in particular, both 1D and 2D spectrometer arrays may be produced. Said aim is achieved, whereby a Fourier spectrometer is provided, said spectrometer comprising a support layer (4) which is transparent to the optical input signal, a sensor (2), for producing an electrical output signal, which is placed on the support layer and is at least partially transparent to the optical input signal, a reflective layer (3), placed on the sensor side opposite to the support layer, for reflecting the incident optical input signal (2) and producing an optically standing wave from the incident input signal and reflected input signal as well as a cavity (7), located between the sensor and reflective layer, for allowing a modulation of the distance between the sensor and reflective layer, whereby said sensor is embodied for scanning the intensity of the standing wave and for producing an output signal, containing the spectral information of the input signal. The support layer, the sensor and the reflective layer are together integrated into a semiconductor component (1) and oriented substantially parallel to each other and perpendicular to the incident optical input signal, for the production of the optically standing wave.
Abstract:
A detector array that eliminates the channel spectrum effect. In one embodiment the detector consists of a charge couple device (CCD) detector having a photoactive layer supported on a wedge-shaped substrate. Incident radiation impinging any of the pixels and passing through the substrate to the wedge-shaped surface thereof is reflected back at an angle away from the pixel from which it passed through. An infrared array and a single element detector each including a wedge-shaped substrate are also disclosed. The detectors do not require costly signal processing equipment and further can be constructed in accordance with well known manufacturing techniques and with little or no additional cost beyond that normally associated with producing such devices.
Abstract:
In a photo-detector, a window pane member for covering a photosensitive semiconductor is selected from among plural samples having light transmittances different from each other in compliance with an intensity of output of the photosensitive semiconductor detected under a constant quantity of light incident on the photosensitive semiconductor, thereby compressing dispersion of outputs in the plural photo-detectors into a small range as a whole.