Observation of photon antibunching with a single conventional detector
- URL: http://arxiv.org/abs/2008.12669v1
- Date: Fri, 28 Aug 2020 14:12:33 GMT
- Title: Observation of photon antibunching with a single conventional detector
- Authors: Shaojie Liu, Xing Lin, Feng Liu, Hairui Lei, Wei Fang and Chaoyuan Jin
- Abstract summary: We show a new method to measure and extract the second-order correlation function with a standard single-photon avalanche photodiode.
This is realized by shifting the informative coincidence counts near the zero-time delay to a time window which is not obliterated by the dead-time and after-pulse of detection system.
The new scheme is verified by measuring the second-order correlation from a single colloidal nanocrystal.
- Score: 7.315229390615172
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: The second-order photon correlation function is of great importance in
quantum optics which is typically measured with the Hanbury Brown and Twiss
interferometer which employs a pair of single-photon detectors and a
dual-channel time acquisition module. Here we demonstrate a new method to
measure and extract the second-order correlation function with a standard
single-photon avalanche photodiode (dead-time = 22 ns) and a single-channel
time acquisition module. This is realized by shifting the informative
coincidence counts near the zero-time delay to a time window which is not
obliterated by the dead-time and after-pulse of detection system. The new
scheme is verified by measuring the second-order correlation from a single
colloidal nanocrystal. Photon antibunching is unambiguously observed and agrees
well with the result measured using the standard HBT setup. Our scheme
simplifies the higher-order correlation technique and might be favored in
cost-sensitive circumstances.
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