Temporal coherence length of light in semiclassical field theory models

The following work is motivated by the conceptual problems associated with the wave-particle duality and the notion of the photon. Two simple classical models for radiation from individual emitters are compared, one based on sines with random phasejumps, another based on pulse trains. The sum signal...

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Bibliographic Details
Published in:AIP conference proceedings 2011-03, Vol.1327 (1)
Main Authors: Jagielski, Borys, Lein, Johanne, Inge Vistnes, Arnt
Format: Article
Language:English
Subjects:
APPROXIMATIONS
BOSONS
CALCULATION METHODS
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
COHERENCE LENGTH
DIMENSIONS
DUALITY
ELECTROMAGNETIC FIELDS
ELECTROMAGNETIC RADIATION
ELECTRONIC EQUIPMENT
ELEMENTARY PARTICLES
FIELD THEORIES
FUNCTIONAL ANALYSIS
LENGTH
MASSLESS PARTICLES
MATHEMATICS
OSCILLATORS
PARTICLES
PHOTONS
PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
PULSES
RADIATIONS
RANDOMNESS
SEMICLASSICAL APPROXIMATION
VISIBLE RADIATION
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Summary:The following work is motivated by the conceptual problems associated with the wave-particle duality and the notion of the photon. Two simple classical models for radiation from individual emitters are compared, one based on sines with random phasejumps, another based on pulse trains. The sum signal is calculated for a varying number of emitters. The focus lies on the final signal's statistical features quantified by means of the temporal coherence function and the temporal coherence length. We show how these features might be used to experimentally differentiate between the models. We also point to ambiguities in the definition of the temporal coherence length.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.3578725