Quanta Image Sensors
Wed, Jan 28, 2015 1:00P EST
Join us for a FREE webinar - Wednesday, January 28, 2015, 1 p.m. EST
Demand for high sensitivity and high dynamic range motivates new approaches for image sensors.
The quanta image sensor (QIS) concept involves counting individual photons on sensors made of 1 billion or more specialized sub-diffraction-limit photodetectors (called jots). A series of bit planes is generated through high-speed readout, and a kernel or "cubicle" of bits (X,Y, t) is used to create a single output image pixel. The size of the cubicle can be adjusted post-acquisition to optimize image quality. Jots are read out at 1000 fps, for a data rate exceeding 1Tb/s.
Basically, we are trying to count photons as they arrive at the sensor. Recent progress toward realizing the QIS for commercial and scientific purposes will be discussed. This includes investigation of a pump-gate jot device implemented in a 65-nm process, power-efficient readout electronics (currently less than 20 pJ/b in 0.18 um...