SPAD 23 Red
Advanced detector for red fluorescence imaging
Ideal point detector
Wide detection spectra and low noise
High timing resolution
Plug and play
SPAD 23 Red, advanced single-photon detector array
SPAD 23 Red is a detector array with 25 square packed single-photon avalanche diodes (SPADs) with increase
sensitivity in the red wavelengths. It features both the capability of direct photon counting and photon time tagging to
enable a wide range of single-photon detection applications
*Other product names: SPAD23RED, SPAD23R.
For consistency and clarity, note that these names refer to the same product.
Ideal point detector
SPAD 23 Red is the ideal solution for a confocal scanning setup. Each pixel can act as a virtual pinhole, increasing resolution and contrast.
Wide detection spectra and low noise
Our single-photon detectors are fabricated in a state-of-the-art CMOS process and offer an ultra-low dark count rate of less than 50 cps. Microlenses enhance the detection with a peak detection efficiency of over 60%.
High timing resolution
Real-time processing of photon events occurs in a field-programmable gate array. The detector can process up to 300 Mcps over the whole array. Time-to-digital converters per pixel enable a fine timing resolution down to 20 ps with at a maximum photon flux of 70 Mcps.
Plug and play
The system requires just a 5V power adapter and USB3 cable to run. For full flexibility, 4 additional control lines can be connected to the SMA connectors. The SM1 optical port, the M2.5 and the M4 screw mounting positions offer a flexible integration into an existing optical setup.
The detector is bundled with an intuitive software interface. The software gives easy access to all functionalities offered by our detectors, allows for fast prototyping and makes acquiring single-photon data easier than ever.
For the advanced users, we offer full remote control through a standard TCP/IP interface. This enables the user to take full control of the system from any TCP/IP capable software package, such as Matlab, Octave, Labview and Python.
The SPAD 23 Red boosts light collection of popular red dyes like Atto 647 and Alexa Fluor 647, driving innovation in confocal scanning microscopy. This advancement delivers sharper, brighter images while providing precise insights into molecular functions, interactions, and red fluorescence environments.
To showcase real life examples of our detector in various applications, we refer to our applications page.
| Properties | SPAD 23 Red |
|---|---|
| Array size | 25 pixels |
| Peak detection efficiency | 62% @ 620 nm |
| Wavelength window | 520-820 nm |
| Fill factor (collimated light) | >80% |
| Median dark count rate | <50 cps |
| Maximum pixel count rate | 12.5 Mcps |
| Maximum system bandwidth (USB-3) | 3 Gbps |
| Maximum photon throughput (counting mode) | 300 Mcps |
| Maximum photon throughput (timing mode) | 70 Mcps |
| Timing resolution | 20 ps |
| Timing synchronous to | laser clock |
| Power consumption | <2 W |
| External SMA triggers | dwell clock line clock frame clock laser clock |
| Peltier cooling | ✔ |
| Protective glass window | ✔ |
| Robust metal enclosure | ✔ |
