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Photon-number-resolving Scientific Camera with Low Noise

The scientific qCMOS camera Orca-Quest of Hamamatsu Photonics has an incredibly low noise of 0.27 electrons rms and a pixel count of 9.4 megapixels.

Bild: Hamamatsu Photonics Deutschland GmbHBild: Hamamatsu Photonics Deutschland GmbH

Bild: Hamamatsu Photonics Deutschland GmbHBild: Hamamatsu Photonics Deutschland GmbH

In quantitative imaging, the photoelectric noise generated when light is converted into electrical signals is the all-important factor that determines the lower detection limit of the camera.

Bild: Hamamatsu Photonics Deutschland GmbHBild: Hamamatsu Photonics Deutschland GmbH
The Orca Quest camera delivers excellent performance with incredibly low noise (0.27 electrons rms). Image quality comparison at long exposure time (pseudo color), exposure time 15min (10s x 90 times integration): Orca Quest (l.) and Gen II sCMOS camera (

Bild: Hamamatsu Photonics Deutschland GmbHBild: Hamamatsu Photonics Deutschland GmbH

The Orca-Quest reduces this photoelectric noise to a level below the signals generated by photons, which are the minimum unit of light. This makes the camera the world's first camera to achieve 2D photon-number-resolving measurement, meaning that it accurately measures the number of photons to create an image.

The Orca-Quest's ability to identify the number of photons invites new possibilities for a wide range of fields. For example, the camera accurately observes the quantum state by quantitatively imaging the amount of light from ions and neutral atoms. This makes it a promising tool for speeding up research and development work on quantum computers and other quantum technology. In addition, due to its wide field of view capable of capturing ultra-low light level phenomena, the Orca-Quest is likely to find applications in the astronomical research and life science fields. At the heart of the camera is a new high-performance CMOS image sensor, designed and fabricated using the in-house design and manufacturing technologies of Hamamatsu Photonics. The CMOS sensor delivers excellent performance with incredibly low noise (0.27 electrons rms), high pixel count (4,096x2,304), and high resolution, yet attains high-speed readout. Its other features include a back-illuminated structure, 4.6x4.6µm pixel size, reduced crosstalk between pixels, and suppressed variations in the electrical characteristics of each pixel.

Hamamatsu Photonics Deutschland GmbH

Dieser Artikel erschien in inVISION 5 (Oktober) 2021 - 27.09.21.
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