Single-photon avalanche photodiode array chip has onboard signal processing

SPAD2

(Image: Fraunhofer IMS)

Duisburg, Germany--The Fraunhofer Institute for Microelectronic Circuits and Systems IMS is a member of a team that has introduced an ultrasensitive CMOS-compatible image sensor based on single-photon avalanche photodiodes (SPADs). The array's pixel structure can count individual photons within a few picoseconds (a thousand times faster than existing versions).

Because each individual photon is taken into consideration, extremely low-light camera images can be captured. The Fraunhofer group developed the device in collaboration with the pan-European (plus Israel) group called Microelectronic Single-Photon 3D Imaging Arrays for low-light high-speed Safety and Security Applications (MiSPIA).

Camera on chip
The new image sensor uses the internal avalanche breakdown effect (a photoelectric amplification effect). To count these events, each of the sensor's pixels includes very precise digital counters. In addition, each sensor chip has its own microlens. And the digital image signals are processed directly on the microchip, eliminating the need for additional analog signal processing.

The Fraunhofer group aims to create a process to produce the same sort of device but with backlit sensors (sensors that receive their light through the wafer).

The Fraunhofer Institute IMS will exhibit the new image sensor at Vision, a trade show for image processing, from November 6 to 8, 2012 in Stuttgart at stand H74 in Hall 1.

 

Most Popular Articles

Webcasts

Opportunities in the Mid-IR

The technology for exploiting the mid-IR is developing rapidly:  it includes quantum-cascade lasers and other sources, spectroscopic instruments of many...

Fiber Optic Sensors – Fundamentals, Principles and Applications

In this webcast, sponsored by Nufern, we focus on optical fiber sensing technology.  Fundamental concepts will be presented first, followed by the under...

Infinite Possibilities – Easily Combining Scanner and Servo Motion

High precision motion control applications such as laser micromachining, 2-photon polymerization, glass panel and film patterning, and additive manufacturing...

Solutions in Search of Problems: What Spectroscopy Can Do for You

Spectroscopy is so pervasive that most of us take it for granted. We use it for routine laboratory and test measurements without appreciating how those same ...

Technical Digests

HIGH-ENERGY LASER COATINGS: Eliminating laser damage proactively

High-power and high-energy thin-film antireflection coatings for laser optics require careful des...
Sponsored by

LIBS -- spectroscopy for remote identification of materials

Laser-induced-breakdown spectroscopy (LIBS) uses a pulsed laser to vaporize a small sample of a s...
Sponsored by

Laser Tools for Materials Processing

Laser materials processing requires not only the appropriate industrial laser system, but also a ...
Sponsored by

Click here to have your products listed in the Laser Focus World Buyers Guide.

RELATED PRODUCTS

Phantom v1610

Phantom v1610 high-speed digital camera can shoot 1 million FPS.

Phantom v711

Phantom v711 high-speed digital camera

Evolve 128 EMCCD Camera

Quantitative high performance with extreme sensitivity for low-light applications.

RELATED COMPANIES

Surface Optics Corp

Designs and manufactures hyperspectral and multispectral imagers operating from the ult...

Optics Balzers AG

Possesses comprehensive know-how in optical thin-film coatings and components, glass pr...

Cremat Inc

Manufactures and supplies charge-sensitive preamplifiers for use in nuclear and x-ray d...

Social Activity

  •  
  •  
  •  
  •  
  •  
Copyright © 2007-2014. PennWell Corporation, Tulsa, OK. All Rights Reserved.PRIVACY POLICY | TERMS AND CONDITIONS