Interferogram - Hutchinson encyclopedia article about Interferogram Printer Friendly
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interference
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interference

In physics, the phenomenon of two or more wave motions interacting and combining to produce a resultant wave of larger or smaller amplitude (depending on whether the combining waves are in or out of phase with each other).

Interference of white light (multiwavelength) results in coloured bands; for example, the iridescent colours of oil films seen on water or soap bubbles (demonstrated by Newton's rings). Interference of sound waves of similar frequency produces the phenomenon of beats, often used by musicians when tuning an instrument. With monochromatic light (of a single wavelength), interference produces patterns of light and dark bands. This is the basis of holography, for example. Interferometry can also be applied to radio waves, and is a powerful tool in modern optical and radio astronomy.
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? Mentioned in ? References in periodicals archive
 
First an interferogram was measured with the gas cell in the interferometer, and the angle of the quartz phase shifter was varied.
Virtual excitation and multiple scattering correction terms to the ... by Werner, S.A. / Journal of Research of the National Institute of Standards and Technology
Now we can provide one-shot interferograms for optics up to 12-inch (305mm) clear aperture.
CVI Technical Optics Installs 12-Inch Interferometry Capability by Business Wire
[5] overcame this limitation by measuring the phase shift between interferograms recorded with the sample placed alternately in subbeams I and II (Fig.
High-precision determination of the neutron coherent scattering length by Abbas, Sohrab / Journal of Research of the National Institute of Standards and Technology
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