Photonic Charge-Pump Device Measures Distance

by Nicola Massari & Massimo Gottardi SPIE Newsroom, accessed 3 Aug 2006 A variety of imaging applications could benefit from the ability to discern how far an object is from the sensor. Although CMOS image sensors have gained popularity due to their low cost of fabrication and ease of integration with other electronics, 3D optical measurement remains a challenge for these devices. We are developing a compact CMOS-compatible device that uses the phenomenon of charge pumping to extract distance information from sensors. Read more