Intensity fluctuations produced by multimode lasers in combination with dielectric beam splitters

Breton, Michael E.; Teich, Malvin C.; Matin, Leonard

doi:10.3758/bf03202248

Cited by 2 publications

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References 4 publications

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“…For example, Teich et al (1982) and Breton et al (1977) consider a light modulation for which the quantum emission forms no longer a Poisson process. With respect to b) it is well known (e.g.…”

Section: Introductionmentioning

confidence: 99%

The generalized Bouman-van der Velden quantum coincidence detector

Schwarz

1989

Biol. Cybern.

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Abstract. The (two-) quantum coincidence detector originally proposed by van der Velden (1944) is generalized to an arbitrary renewal process input and an arbitrary distribution of the duration of the integration periods. The Laplace transform of the distribution of the waiting time to a quantum coincidence is derived and several applications and further general results are presented. It is shown that the performance of the Bouman-van der Velden coincidence detector is relatively stable with respect to variability of the durations of the integration periods, a result, which lends further support to the validity of the quantum coincidence principle in visual psychophysics.

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Section: Introductionmentioning

confidence: 99%

The generalized Bouman-van der Velden quantum coincidence detector

Schwarz

1989

Biol. Cybern.

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Multiplication noise in the human visual system at threshold: 1 Quantum fluctuations and minimum detectable energy

et al. 1982

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We have carried out a series of frequency-of-seeing experiments similar to those performed by Hecht, Shlaer, and Pirenne [J. Gen. Physiol. 25, 819-840 (1942)], using an Ar+ laser operated at 514.5 nm as the source of light. In certain blocks of trials, our subjects were encouraged to report as seen those trials in which the stimulus might have been present. It was determined that sensitivity and reliability were traded against each other over a broad range: for our subjects, the detection of 147 photons at the cornea with 60% frequency of seeing entailed, on the average, a 1% false-positive rate (FPR), whereas the detection of 34 photons at the cornea with 60% frequency of seeing was accompanied by a 33% FPR. A new neural-counting model has been developed in the framework of signal-detection theory. It combines Poisson stimulus fluctuations with additive and multiplicative neural noise, both of which are known to be present in the visual system at threshold. The resulting probability-of-detection curves, derived from the Neyman Type-A counting distribution, are in good accord with our experimental frequency-of-seeing data for sensible values of the model parameters. We deduce that, on the average, our four subjects are able to detect a single photon at the retina with 60% frequency of seeing, at the expense of a 55% FPR. In Part 2 of this set of papers [P.R. Prucnal and M.C. Teich, Biol. Cybern. 43, 87-96 (1982)], we use the normalizing transform, together with probit analysis, to provide improved estimates of threshold parameters, whereas in Part 3 [M.C. Teich, P.R. Prucnal, G. Vannucci, M.E. Breton, and W.J. McGill, submitted to Biol. Cybern.], we consider the effects of non-Poisson quantum fluctuations.

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Intensity fluctuations produced by multimode lasers in combination with dielectric beam splitters

Cited by 2 publications

References 4 publications

The generalized Bouman-van der Velden quantum coincidence detector

The generalized Bouman-van der Velden quantum coincidence detector

Multiplication noise in the human visual system at threshold: 1 Quantum fluctuations and minimum detectable energy

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