Generating multi-wavelength phase screens for atmospheric wave optics simulations using fast Fourier transforms

TL;DR

This paper introduces a fast Fourier transform-based method to generate multi-wavelength atmospheric phase screens, validated against theoretical models, aiding advanced adaptive optics simulations in turbulent conditions.

Contribution

The paper presents a novel, efficient technique for synthesizing multi-wavelength phase screens using FFTs, improving simulation accuracy in atmospheric optics.

Findings

Excellent agreement between theoretical and simulated structure functions.

Method enhances multi-wavelength adaptive optics simulations.

Validated for strong and deep turbulence conditions.

Abstract

We present a method to synthesize phase screens for multi-wavelength, atmospheric wave optics simulations using fast Fourier transforms. We validate our work by comparing the theoretical, two-wavelength optical path length structure function to simulated results, and we find the two to be in excellent agreement. Our phase screen synthesis method will be useful in two-wavelength adaptive optics simulations in strong or deep turbulence.