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NanoPhotonics Centre

 

Cambridge NanoPhotonics FPGA system
in partnership with Cambridge Consultants

This low-cost FPGA system can be implemented for any set of single-photon avalanche detectors (SPADs), currently up to 8 input channels. It provides a streamed output of time-stamped photon arrival times continuously with sub-100ps accuracy, using time-to-digital converters. By synchronising simultaneously to clocks from incident laser pulses on a sample, as well as any other repetitive clocks, dark counts can be removed and lock-in detection at the single-photon level achieved. We recently demonstrated this system for coherent antiStokes Raman scattering on plasmonic nanostructures which suffer damage when using sub-ps laser pulses for microwatt powers, using the single-photon lock-in capability.

see: Single photon multiclock lock-in detection by picosecond time stamping, Optica (2021); DOI: 10.1364/optica.441487

We are supporting early implementations of this system.

  • manual
  • FPGA open source code
  • build list

If you are interested, please add your name and email to the signup list: here