Photon Counting Cameras
“Photon Counting” applications require an image sensor in which the arrival of a photon at a pixel can be sensed with a read noise of < 0.3e- . Gigajot’s Quanta Image Sensors (QIS) achieve an industry-leading 0.19e- and 0.27erms read noise, while operating at full resolution and high frame rate without the use of electron-multiplication.
Gigajot’s proprietary low-noise cluster-parallel readout technology achieves reliable photon-counting sensitivity at room temperature. Gigajot’s patented pixel design and architecture also results in an unprecedently low dark current at room temperature. The sensor utilizes in-pixel dual-gain readout to achieve a single-exposure dynamic range of 100dB and has an 12-bit ADC resolution.
Gigajot’s QIS cameras interface to a user’s PC via a USB 3.0 SuperSpeed interface. The user-friendly GUI software that is provided with these cameras enables control of the sensor, image/video capture, real-time processing, and analysis.
| Camera Series | #MPix |
Number of pixels (H x V) |
Spectral Options | Pixel size (µm) | * Peak QE (%) | FWC [e-] | Read noise [e-] RMS | Dark current [e-/p/s] | TE cooled | Sensor Diagonal (mm) | Shutter type | * Max frame rate at full resolution (fps) | Interface | Maximum dynamic range |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| QIS-GJ00422 | 4.2 | 2048 x 2048 | Monochrome/Color | 2.2 x 2.2 | 86% | 30000 | 0.27 | 0.4 @ +20°C | Yes | 6.4 | RS | 25 | USB 3.0 SuperSpeed | 100dB |
| QIS-GJ01611 | 16.7 | 4096 x 4096 | Monochrome/Color | 1.1 x 1.1 | 80~85% | 4000 | 0.19 | 0.09 @ +20°C | Yes | 6.4 | RS | 14 | USB 3.0 SuperSpeed | 86dB |
* Peak QE is shown for monochrome versions of each camera series.
** The Max Frame Rate shown in the above table for each camera is the maximum frame rate achievable at full-frame readout.