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T3R Antibunching - Slow Decay
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HowTo (Experimental); SymPhoTime; How to perform Hanbury Brown Twiss Antibunching experiments; Diamond NV centers ; MicroTime 200; Microtime Specials; Antibunching Measurements; Polarisation resolved measurements with the MT200 (for internal use only); total correlation
Q.: How can we avoid decay at very long time delay (up to 5us)?
In this show-case the external preconditions are:
- detectors: perkin elmer SPCMAQR14
- 700 nm SP filter in front of one of the apds
- sample: diamond nanocrystals (100 nm), we are measuring the antibunching of the NV centers emission
- laser wavelength: 532 nm, cw
- T3R Measurement with PicoHarp Software
A.: The decay can be caused by blinking of the nanodiamonds.
A decay caused by correlation statistics
On top of an eventual blinking you will have a decay caused by correlation statistics.
This happens because you correlate the first arriving photon against a photon at the longer time,
which will be an increasingly unlikely event because the earliest stop photons always win and the experiment restarts.
I attached a simulation.
