Photonics/Optics

Silicon Solar Cells

Imec (Leuven, Belgium) has developed a 20.04% large-area industrial-level silicon solar cell. Imec’s PERC-cell is compatible with the requirements of industrial photovoltaic production. It is a large-area (125mm x 125mm) Cz p-type silicon cell with a simple homogeneous emitter and Ag-single screen-printed front side contacts (65μm finger width), two busbars, and an adapted Al back-side metallization. The transfer of this process to 156mm x 156mm wafers is ongoing.

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Infrared Image Sensor

ON Semiconductor (Phoenix, AZ) has collaborated with Teledyne Imaging Sensors (Camarillo, CA) to manufacture an Extremely Large Stitched Read Out Integrated Circuit (ELS ROIC) for astronomy. The H4RG-15 image sensor, designed by Teledyne, is the latest generation of a 20-year effort sponsored by the National Science Foundation, the National Aeronautics and Space Administration, and Teledyne internal funding to develop increasingly larger and more powerful infrared sensors for astronomical research.

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USB 3.0 CMOSIS-Sensor- Based Cameras

Lumenera Corporation (0ttawa. Ontario, Canada) has introduced a new line of cameras that pair CMOSIS sensors with a USB 3.0 interface. This new product line features six distinct color, monochrome and NIR enhanced cameras based on the CMOSIS CMV4000 (Lt425) and CMV2000 (Lt225) megapixel sensors. Product highlights include a robust, sleek enclosure, compact design for integration, as well as industrial and scientific models. Built-in FPGA-based image processing ensures the highest image quality without having to compromise on performance.

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Epoxy Based UV Curable System

With outstanding light transmission properties and optical clarity, Master Bond (Hackensack, NJ) UV15 is widely used for a variety of bonding, coating and sealing applications in the optical, electronic and optoelectronic industries. This epoxy based UV curable system is 100% reactive and does not contain any solvents or other volatiles.

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Galvo and Controller Combination

Aerotech’s (Pittsburgh, PA) Nmark AGV-HP advanced galvanometers use innovative optical feedback technology to increase resolution to greater than 24 bits. Both the standard AGV and higher performance AGV-HP series scanners may be directly driven by Aerotech’s Nmark CLS galvo controller, which offers a full suite of advanced application tools that include Position Synchronized Output (PSO) and Infinite Field of View (IFOV). The AGV is available with 10, 14, and 20mm apertures with standard F-Theta lens interfaces to provide maximum application flexibility. The AGV can be configured to accommodate 1064, 532, and 355nm wavelengths, with other wavelengths available upon request.

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Tunable Lenses

Edmund Optics (EO) (Barrington, NJ) has introduced new CMount Focus-Tunable Lenses. When a control current is applied to the lens, its focal range is adjusted from +80 to +200mm. This variable tuning range - the ability to adjust focal length - allows the user to replace multi-lens focus or zoom systems, saving space, time and cost. In order to shift the focal range, any 12mm diameter plano-convex (PCX) or plano-concave (PCV) lens with an edge thickness of less than 4.7mm may be used as an offset lens. For imaging applications in the visible (VIS) spectrum, a C-Mount Focus-Tunable Lens with a pre-mounted -150mm BK7 PCV lens is available. Near infrared (NIR) coating is also available. For planning and specification purposes, prescription data is also available for the user to model the effect an offset lens will have on the overall focal range.

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Determining Key Isotopic Ratios In The Field

On August 6th, 2012 the automatic Mars Science Laboratory rover named Curiosity landed on Mars. One of the scientific instruments on board is ChemCam, which has a pulsed laser capable of ablating a focused spot on a remote sample to create a glowing plasma plume of target material. Light from plasma is collected by rover’s telescope on a mast, and the optical spectra are then analyzed by an internal spectrometer. ChemCam can take thousands of spectra per day from a distance of about 7 meters, thus making chemical analyses on the surface of Mars with unprecedented speed. Operationally, the ChemCam data facilitates decisions of where the rover should be driven.

Posted in: Articles, Features, Photonics, Imaging and visualization, Remote sensing, Chemicals, Gases, Spacecraft

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