"The Split-Step Fourier Method - An algorithm for beam propagation in an inhomogeneous medium"
When
Where
Zoom: https://zoom.us/j/96303168665?pwd=NVc1cHRjNVcvOGM1SFUyNnd6eTlmUT09
PW: JCmeeting
Presentation: The Split-Step Fourier Method - An algorithm for beam propagation in an inhomogeneous medium.
Abstract:
The beam propagation method as described by Mansuripur, Wright, and Fallahi relies on the use of the split-step fourier algorithm to find numerical solutions to a beam propagating within a medium which produces diffraction and phase-modulation of the incident wave. Due to the noncommutative nature of diffraction and phase modulation, it is necessary to treat each component separately and iterate over many small steps to retrieve an accurate reconstruction of the propagated beam. Specifically, we will look at how this technique can be used to simulate the orbital angular momentum coupling of a CW beam guided within a "vortex filament cage."
Bio:
David is a 2nd year PhD student in the College of Optical Sciences. He is advised by Professor Pavel Polynkin and works, generally speaking, in the field of ultraintense nonlinear optics. His doctoral research is centered on the design and construction of a wavelength tunable 1TW longwave infrared ultrashort pulse laser.
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