The SPC-150NX single photon counting card from Becker & Hickl is the highest resolution TCSPC card available, offering unsurpassed electrical timing resolution down to 3.3ps FWHM / 1.6ps RMS.

With time channel width down to 407fs, the high timing resolution makes the SPC-150NX ideally suited for use with ultra-fast detectors, such as B&Hs new HPM-100-06/07 ultra-fast hybrid detector or superconducting single photon detectors. B&H recently demonstrated use of their SPC-150NX in combination with SCONTEL's NbN Detector to deliver an instrument response function (IRF) with a full width at half maximum of 17.8 ps and in combination with the ultra-fast HPM-100-06 and HPM-100-07 hybrid detectors and IRF of <20ps. 

The SPC-150NX card features a dual memory architecture for unlimited sequential recording of decay curves in memory and is supplied with the 64 bit SPCM Windows control software which takes full advantage of the capabilities of 64-bit Windows enabling a large amount of memory to be addressed.

The SPC-150NX features the high-speed interface for laser scanning microscopes. It is the module supplied with all b&h's Fluorescence Lifetime Imaging (FLIM) systems where it utilises the 64 bit processing environment of current Windows systems so FLIM data can be recorded with unprecedented numbers of pixels and time channels as large as 2048 x 2048 pixels and 256 time channels, or 1024 x 1024 pixels and 1024 time channels 

Becker & Hickl offer a complementary range of short pulsed diode lasers that are ideal excitation sources for TCSPC measurements.


  • b&h's multi-dimensional TCSPC technique
  • Time channel width down to 407fs
  • Electrical time resolution down to 3.3ps FWHM / 1.6ps rms
  • High-speed interface for laser scanning microscopes
  • Multi-detector / multi-wavelength capability
  • Unlimited sequential recording of curves or images
  • Measurement time down to 0.1 µs
  • Reversed start/stop: laser repetition rates up to 150 MHz
  • Recorded count rate up to 5 MHz, dead time 100 ns, saturated count rate 10 MHz.
  • Works at any scan rate of CLSMs or MPLSMs
  • Photon distribution modes and time-tag mode



This product could be used for the following applications:

  • Fluorescence correlation spectroscopy
  • Fluorescence lifetime imaging (FLIM)
  • Fluorescence lifetimes
  • Laser scanning microscopy
  • Single Molecule Spectroscopy
  • Fluorescence


This product is manufactured by Becker and Hickl GmbH.

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