interferogram


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Related to interferogram: Fourier transform

interferogram

[‚in·tə′fir·ə‚gram]
(graphic arts)
A photograph of a shock wave or other fluid flow, produced with the aid of an interferometer, in which the displacement of interference fringes is proportional to the density change across the fluid.
(spectroscopy)
A graph of the variation of the output signal from an interferometer as the condition for interference within the interferometer is varied.
References in periodicals archive ?
Analyzing laser Plasma interferograms with a continuous Wavelet transform ridge extraction technique: the method, Applied Optics, 40(35), 6561-6568.
As mentioned before, the demodulation of a single interferogram often involves a combination of methods (GA + Zernike, PSO + Zernike, Neuronal networks + others, etc.
For the section of film measured, the Veeco software calculated the vertical distance between both interferograms and consequently an average co-PET thickness value.
Polarization sensitive evaluation of the interferograms can give additional information about sample birefringence enhancing image quality.
Step 1: Resample the absolute phase [phi](a, r), which was generated by unwrapping and by a factor of k along the azimuth and a factor of l over the range to obtain the absolute interferogram [phi]([a.
Because the antenna pointing error would lead to an azimuth asynchronous scanning decorrelation, and to a loss in the interferogram azimuth resolution, both images should choose the same azimuth spectrum to ensure the quality of the interferogram.
The curve is called a white light interferogram or simply an interferogram, and denoted by g(z).
The obtained holographic interferogram images of temperature fields were used to determine the local values of heat transfer coefficients for a heat exchange area without protrusions and were compared with the results for a heat exchange area with triangular protrusions
When the system is functioning properly and all temperatures are equal, then a perfect null should be measured in the interferogram.
The FTIR interferogram for TLA and TPB were very similar with regards to the presence of various functional groups within both materials.
Applying the Fourier transform to the interferogram produces intensities for each wavelength.