使用数字示波器的光子计数统计
Photon counting statistics using a digital oscilloscope
摘要：
我们提出了一个光子计数实验设计的本科物理实验室。在两种极限情况下研究了赝热光源光子数的统计：比相干时间长得多和短得多，分别给出泊松分布和玻色-爱因斯坦分布。实验可以在合理的时间内完成，使用数字示波器，而无需计数板。使用示波器的优点是可以存储数据以供进一步处理。检测现象的随机性增加了额外的价值，因为学生被迫进行数据处理和分析。
英文摘要：
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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