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Synchronous phase-demodulation of concentric-rings Placido mires in corneal topography and wavefront aberrometry (theoretical considerations)
Synchronous phase-demodulation concentric-rings Placido mires corneal topography wavefront aberrometry Optics
2012/4/20
This paper presents a digital interferometric method to demodulate Placido fringe patterns. This method uses a computer-stored conic-wavefront as reference carrier. Even though, Placido mires are wide...
Ultrafast extended x-ray absorption fine structure„EXAFS…—theoretical considerations
extended x-ray absorption fine structure EXAFS… —theoretical considerations
2014/9/24
Inspired by the recent experimental demonstration of ultrafast x-ray absorption spectroscopy, we present a framework for the calculation of extended x-ray absorption fine structure~EXAFS!spectra on th...
Ultrafast X-ray and Electron Diffraction: Theoretical Considerations
Ultrafast X-ray Electron Diffraction Theoretical Considerations
2014/9/24
Time-dependent ultrafast diffraction measurements can be directly inverted to obtain the dynamics of atomic motions, in contrast to ultrafast spectra which require detailed knowledge of the sample (e....