howto:t3r_antibunching_-_slow_decay
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| howto:t3r_antibunching_-_slow_decay [2022/02/01 10:52] – [Q.: How can we avoid decay at very long time delay (up to 5us)?] peter | howto:t3r_antibunching_-_slow_decay [2022/02/01 10:54] – [A.: The decay can be caused by blinking of the nanodiamonds.] peter | ||
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| - | ==== 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 | ||
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| - | - T3R Measurement with PicoHarp Software | ||
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| - | ===== A.: The decay can be caused by blinking of the nanodiamonds. ===== | ||
| ==== A decay caused by correlation statistics ==== | ==== A decay caused by correlation statistics ==== | ||
| This decay is 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. | This decay is 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. | ||
howto/t3r_antibunching_-_slow_decay.txt · Last modified: 2022/02/01 11:32 by peter