J. Phys. IV France
Volume 133, June 2006
Page(s) 679 - 682
Publié en ligne 16 juin 2006
Inertial Fusion Sciences and Applications 2005
J.-C. Gauthier, et al.
J. Phys. IV France 133 (2006) 679-682

DOI: 10.1051/jp4:2006133136

Advantage of Fast Fourier Interpolation for laser modeling

I.V. Epatko and R.V. Serov

General Physics Institute of Russian Academy of Sciences, Moscow, Russia Address: Vavilova Street 38, Moscow 119991, Russia

The abilities of new algorithm - 2D Fast Fourier Interpolation (FFI) with magnification factor (zoom) 2$^{\rm n}$ to improve the spatial resolution when necessary are analyzed in details. FFI procedure is useful when diaphragm/aperture size is less than half of current simulation scale. The computation noise due to FFI procedure is less than 10-6. The additional time for FFI is approximately equal to one Fast Fourier Transform execution time. For some applications using of FFI procedure decreases the execution time in 104 times compared with other laser simulation codes.

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