Abstract
The probability of zero-count P0(T) (as a function of the counting interval T) is one of the most interesting functions characterizing a light field. Experimentally, P0(T) is usually obtained by measuring successively the zero-count probability for a set of different intervals. This procedure exposes the measurement of P0(T) to errors imputable to drift. We present a simple zero-counter which is essentially free from drift effects and displays P0(T) directly on the CRT of an oscilloscope for sixteen values of T. Another advantage of the instrument is a conspicuous reduction of the overall measuring time.
© 1982 Optical Society of America
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