Nonlinear processing of diffraction and interference patterns

Власов Н.Г., Кулиш С.М. Нелинейная обработка дифракционных и интерференционных картин // Оптический журнал. 2009. Т. 76. № 7. С. 21–24.

Vlasov N.G., Kulish S.M. Nonlinear processing of diffraction and interference patterns [in Russian] // Opticheskii Zhurnal. 2009. V. 76. № 7. P. 21–24.

N.G. Vlasov and S.M. Kulish, "Nonlinear processing of diffraction and interference patterns," Journal of Optical Technology. 76 (7), 392-394 (2009). https://doi.org/10.1364/JOT.76.000392

This paper briefly explains the algorithm proposed earlier for the nonlinear processing of inter-ferograms, making it possible to increase their sensitivity all the way to the limiting value. It is shown that this algorithm can be adapted to increase the sensitivity of the phase-contrast method and to process diffraction patterns. Such processing allows the size of a microscopic object the illumination of which produces a diffraction pattern to be determined with increased accuracy.