Wyniki wyszukiwania - BazTech

Ograniczanie wyników

2 Optica Applicata

2 2018

Znaleziono wyników: 2

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: mathematical methods in physics

Sortuj według:

Ogranicz wyniki do:

A semi-analytic approach to calculating the Strehl ratio for a circularly symmetric system. Part 1: static wavefront

Castaño-Fernandez A. B., Martínez-Finkelshtein A., Iskander D. R.

Optica Applicata

2018

Vol. 48, nr 2

201--210

Close-form expression for the Strehl ratio calculated in the spatial frequency domain of the optical transfer function (SOTF) is considered for the case of an optical system that has circular symmetry. First, it is proved that the SOTF for the aberration-free diffraction limited optical system is equal to one. Further, a semi-analytic solution for the SOTF for a system described by the second (defocus) and the fourth (spherical) order aberrations is provided. It is shown that the proposed semi-analytical solution is of an order of a magnitude computationally more efficient than the commonly used approach based on the discrete Fourier transformation.

A semi-analytic approach to calculating the Strehl ratio for a circularly symmetric system.Part 2: dynamic wavefront

Castaño-Fernandez A. B., Martínez-Finkelshtein A., Iskander D. R.

Optica Applicata

2018

Vol. 48, nr 2

211--223

Close-form expression for the Strehl ratio calculated in the spatial frequency domain of the optical transfer function (SOTF) is considered for the case of time-varying dynamic optical system that has circular symmetry. Specifically, closed-form expressions for the temporally averaged SOTF are considered, which can be easily evaluated numerically (what we call a semi-analytic solution). As for the case of a static wavefront, described in Part 1 of this work, it is shown that the proposed methods are computationally more efficient than the commonly used approach based on the discrete Fourier transform.