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29 Nov 2019

What is the relative coherence time between two light fields received at the input of a stellar interferometer when the spatial coherence length is measured to be 4.5 cm

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Related textbook solutions

Physics: Principles with Applications
7th Edition, 2013
Giancoli
ISBN: 9780321625922

Related questions

The coherence length of an ordinary white light source canbeincreased if we place a color filter in front of the source,sothat the light that passes through the filter issomewhatmonochromatic. The minimum wavelength of the emerging lightis636 nm. What is the maximum wavelength inorder for the coherencelength to be 0.09500 mm?

An interferometer is set up to carefully measure changes inlength. The laser source has a wavelenth of 632nm and the arms ofthe device are 11 m long.
a) How much would the phase of light that has traveled one of thepaths have to be to go from perfectly constructive to perfectlydestructive interference?
b) How much of a change in the length of the interferometer armdoes this represent?
c) How much of a travel time difference does this represent?

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