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Researchers at the University of California, Irvine used the nonlinear optical properties of the silicon (Si) chip in a Si-based camera to enable a mid-infrared (MIR)-specific response in the camera. Their method for detecting MIR images with a Si-based camera does not rely on phase matching, is alignment free, and does not require complex post-processing of the images.
Unlike MIR cameras, Si-based cameras exhibit low noise characteristics and have high pixel densities, making them more attractive candidates for high-performance imaging applications. Currently, the most direct way for achieving the MIR-to-visible conversion required by an Si-based camera is through the use of a nonlinear optical crystal. When the MIR light and an…READ MORE