Abstract
DURING the past decade photomultiplier-tube technology and signal processing using integrated circuits have progressed to the point at which the analysis of fluctuating light signals can now be carried out digitally, in real time, with accuracy close to the theoretical limit. These ‘photon correlation’ techniques have so far found their main application in laser light-scattering spectroscopy1 and laser doppler velocimetry2. The techniques need not, however, be limited to applications involving lasers and can be used for the analysis of fluctuating optical signals of any origin (provided the fluctuation time is ≥ 10−8 s). Here we report a preliminary study of the statistical and temporal correlation properties of stellar scintillation, taking advantage of the fast response time and high sensitivity of equipment now standard for laser light-scattering applications.
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References
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JAKEMAN, E., PIKE, E. & PUSEY, P. Photon correlation study of stellar scintillation. Nature 263, 215–217 (1976). https://doi.org/10.1038/263215a0
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DOI: https://doi.org/10.1038/263215a0
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