Award-winning innovators in single photon detection
Advanced single photon sensors and cameras.
Experience the difference!
Trusted by technology leaders
Transforming the image sensor industry
Established in 2018, Pi Imaging Technology is a leading innovator in the field of optical imaging, revolutionizing light detection through our SPAD technology. Our cutting-edge solutions offer unparalleled sensitivity and minimal noise, setting new industry standards.
With a focus on innovation and excellence, we continue to push the boundaries of what is possible in optical imaging, serving research and industrial communities worldwide.
Founded on over two decades of research at TU Delft (Netherlands) and EPFL (Switzerland), we empower partners to introduce innovative products, enabling advancements in life sciences, quantum information, and beyond.
Empowering innovation with industry leading SPAD technology
Low light
Our detectors are best suited for low light conditions with <100 photons signal. We offer pure photon counting Poissonian statistics with SNR = √N. No analog noise sources, no readout noise.
High speed
No trade-off between readout noise and frame rate like in conventional image sensors. Frame rates up to 100’000 fps with full field of view. Integration times shorter than 10 ns.
High dynamic range
Increase the maximum photon count rate to above GHz by using multiple pixels. Use SPADs nonlinear response to light to reach dynamic range beyond 100 dB.
Time resolved
detection
Couple your pulsed illumination with our detector to extract time resolved information with 100 ps precision and 10 ps quantization.
Explore our SPAD technology with guides, case studies,
success stories, and more to make confident decisions
27-05-2025
Comparison between SPAD and EMCCD cameras in low-light conditions
22-07-2024
Target and multiplex different species with high sensitivity and specificity, providing a fast and noninvasive readout.
25-09-2024
A Concise overview of SPAD technology and its applications in diverse fields
View our products
A high-performance single-photon detector array. SPAD 93 is a detector array with 93 hexagonally packed single-photon avalanche diodes (SPADs) with best-in-class performance. Direct photon-counting and photon-time tagging to enable a wide range of single-photon detection applications.
A linear detector with a 320×1 SPAD array. This detector features both fine time gating and individual photon arrival timestamping circuitry, ideal for time-resolved spectroscopy. This spectral detector features microlens-enhanced detection performance and low dark noise.
An award-winning high-performance single-photon camera. SPAD Alpha is a photon-counting camera for high-speed imaging. The core of the camera is a SPAD image sensor with 1024×1024 pixels. Photon counting with up to 73’000 frames per second and zero readout noise is achieved.
Custom SPADs
We offer the design and development of custom or customized detectors as a service. The Pi Imaging Technology team has an accumulated experience of over 20 years in the design of SPAD-based sensors.
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