Quanta Image Sensor

Every Photon Counts

Being developed at Gigajot, QIS is the next generation of image sensors where high-speed single-photon detection is used to unlock new image capture capabilities for consumers and professionals not possible with today’s devices.



Photon-Counting Jots

"Jot" is the specialized pixel that is sensitive enough to detect a single photon of light. Revolutionary detection technologies are developed to enable accurate photon-counting at room temperature without the use of electron avalanche multiplication. 

High-Speed Readout

A QIS may contain hundreds of millions to billions of jots. Innovative circuit design technologies are used to scan the jots at an ultra-high frame rate to capture every single photon.

Innovative Image Processing

Photon bits fields are binned over temporal and spatial dimensions during the image processing to create image pixels. One can access the location and arrival time of every single photon. It enables a variety of options for the image processing and unlocks new image capture capabilities for consumers and professionals.


Scientific Imaging
Security and Defense
Medical Imaging
Low-Light Photography
and Videography
Space Imaging
Automotive Sensing
3D Sensing


Saleh Masoodian, PhD
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Dr. Saleh Masoodian received his Ph.D. from Dartmouth College in 2017. During his Ph.D. at Thayer School of Engineering at Dartmouth College, he was one of the key members of the research group working to realize the Quanta Image Sensor technology. He is the inventor of the BSI Stacked QIS. He has more than eight years of experience in IC design, CMOS Image sensor design, and more than six years of experience in characterization and testing. He has published more than 15 technical papers in CMOS image sensor field.
Jiaju Ma, PhD
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Dr. Jiaju Ma received his Ph.D. from Dartmouth College in 2017. He has a strong background in semiconductor device physics, CMOS image sensor pixel design and image sensor characterization. He is the primary inventor of multiple key innovations to enable the QIS jot devices. He has more than six years of experience in CMOS image sensor pixel design, CIS fabrication process integration, and CMOS image sensor characterization. He holds one U.S. issued patent, multiple patent applications, and over 20 technical publications.
Eric R. Fossum, PhD
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Dr. Eric Fossum is one of the world’s top image sensor experts. He is the primary inventor of the CMOS image sensor camera-on-a-chip that enables about 4 billion per year new cameras. He has founded several companies, including Photobit Corporation, spun out from NASA/JPL (Caltech) in 1995. He has published over 290 papers and holds over 160 issued US patents. He is a member of the National Academy of Engineering and was inducted into the National Inventors Hall of Fame. Dr. Fossum has received many prestigious awards, including the 2017 Queen Elizabeth Prize, regarded as the Nobel Prize of engineering, for his contribution in developing of digital imaging sensors. Currently, he is a Professor at Dartmouth College.


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Pasadena, CA 91107