Results 171 to 180 of about 20,656 (214)

Storage capacity of holo-interferograms

Applied Optics, 2003
The practical storage capacity of a holographic medium can be found by finely comparing reconstructions from independent holograms of an information-dense object wave. With the help of two orthogonally polarized reference waves, a pair of volume holograms is recorded simultaneously at imprint densities as high as 4.1 x 10(10) bits/cm3. As a consequence
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Vector formulation for interferogram surface fitting

Applied Optics, 1993
Interferometry is an optical testing technique that quantifies the optical path difference (OPD) between a reference wave front and a test wave front based on the interference of light. Fringes are formed when the OPD is an integral multiple of the illuminating wavelength. The resultant two-dimensional pattern is called an interferogram.
D J, Fischer, J T, O'Bryan, R, Lopez, H P, Stahl   +3 more
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Averaging double-exposure speckle interferograms

Optics Letters, 1985
Speckle-fringe quality can be improved by averaging many statistically independent interferograms together, which are generated by shifting the object's illumination angle. A technique applicable to double-exposure speckle interferograms obtained from processing two speckle patterns is described. It utilizes a computer-controlled stepping motor to tilt
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Interferogram Data Sampling

2009
The analog interference signal recorded by the detector needs to be captured and digitized at the appropriate and predetermined OPDs. In this chapter, the instrument's subsystem that produces the digital pulses to "€œclock"€ the data acquisition of the interferogram is discussed.
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Computer processing of interferograms

Czechoslovak Journal of Physics, 2004
This article describes the method of computer processing of interferograms namely for apparatus adjusted to infinite fringes width, when the output is one picture on which the measured object is represented by creation of interference fringes, or finite fringes width, when the measured object is represented by the shift of existing interference fringes.
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Fast demodulation of single-shot interferogram via convolutional neural network

Optics Communications, 2021
Zhaojun Liu
exaly  

interferogram, n.

2023
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High Finesse Interferograms

Applied Optics, 1971
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High-accuracy phase demodulation method compatible to closed fringes in a single-frame interferogram based on deep learning

Optics Express, 2021
Yao Hu
exaly  

A modification to the Goldstein radar interferogram filter

IEEE Transactions on Geoscience and Remote Sensing, 2003
Zbigniew A Perski
exaly