Photon counting statistics using a digital oscilloscope

Details Photon counting statistics using a digital oscilloscope Photon counting statistics using a digital oscilloscope

2006-11-06

arxiv.org/abs/physics/0611062v2

Am. J. Phys. 75(8), pp. 707-712, 2007

Physics

Optics

13 pages, 9 Figures, 1 Table, Original File Type: MS-Word, Submitted File type: pdf - Last Version: Whole paper improvement, r

Scientific paper

10.1119/1.2742400

We present a photon counting experiment designed for an undergraduate physics laboratory. The statistics of the number of photons of a pseudo-thermal light source is studied in two limiting cases: much longer and much shorter than the coherence time, giving Poisson and Bose-Einstein distributions, respectively. The experiment can be done in a reasonable time using a digital oscilloscope without the need of counting boards. The use of the oscilloscope has the advantage of allowing the storage of the data for further processing. The stochastic nature of the detection phenomena adds additional value because students are forced to do data processing and analysis.

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