Observing sub-Poissonian statistics of twisted single photons using oscilloscope.

  title={Observing sub-Poissonian statistics of twisted single photons using oscilloscope.},
  author={Nijil Lal and Biveen Shajilal and Ali Anwar and Chithrabhanu Perumangatt and R. P. Singh},
  journal={The Review of scientific instruments},
  volume={90 11},
Heralded single photon sources (HSPSs) from spontaneous parametric down-conversion are widely used as single photon sources. We study the photon number statistics of an HSPS carrying orbital angular momentum in our laboratory and observe the sub-Poissonian statistics using only photodetectors and an oscilloscope. 

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