APPLICATIONS OF TECHNOLOGY:
- Scientific imaging (e.g., biological, medical, astronomical)
- Increased spectral information with lower light intensity or lower exposure time relative to current devices
- Operation in a practical temperature range for use in biological/medical equipment and most telescopes
- Current state of the art imagers that can color-resolve single photons are of bolometric or filter type. However, bolometric devices must operate at temperatures below 1 Kelvin and are limited in pixel count. Devices that use filters are inefficient, as all the photons rejected by a filter are wasted. Single photon imagers that operate at non-cryogenic temperature (e.g., Silicon Photomultipliers) have large dark counts typically measured in MHz/sq.cm.
Researchers at Berkeley Lab are developing a pixelated electronic sensor for imaging across the range from infra-red to ultraviolet wavelengths. Each pixel can have color-resolved single photon sensitivity without dark counts and without inefficiency.
Such a high sensitivity spectral imager holds applications in telescopes for astronomical, exoplanet, and distant galaxy imaging as well as in microscopes and medical devices for hyperspectral imaging. Operation in a practical temperature range (i.e. above 70 Kelvin) would allow use within this array of equipment.
DEVELOPMENT STAGE: Proof of principle prototype development
FOR MORE INFORMATION:
- François Léonard
- Maurice Garcia-Sciveres
- Mi-Young Im
- Yuan Mei
- Andrew Nonaka
- Aikaterini Papadopoulou
- Archana Raja
- Grigory Tikhomirov
STATUS: Patent pending.
OPPORTUNITIES: Available for licensing or collaborative research.
SEE THESE OTHER BERKELEY LAB TECHNOLOGIES IN THIS FIELD:
Compact Hyperspectral Imager IB-3163