2born (2born) wrote,
2born
2born

О расчетах дифракции

Похоже, нечто весьма простое и удобочитаемое.

Analytical Boundary-Based Method for Diffraction Calculations: https://arxiv.org/abs/1912.05257

We present a simple method for calculation of diffraction effects in a beam passing an aperture. It follows the well-known approach of Miyamoto and Wolf, but is simpler and does not lead to singularities. It is thus shown that in the near-field region, i.e., at short propagation distances, most results depend on values of the beam's field at the aperture's boundaries, making it possible to derive diffraction effects in the form of a simple contour integral over the boundaries. For a uniform, i.e., plane-wave incident beam, the contour integral predicts the diffraction effects exactly. Comparisons of the analytical method and full numerical solutions demonstrate highly accurate agreement between them.
Comments: To be published in Journal of Optics
Tags: Мегаучебник или Что я читал и похвалил, наука, разгребая arXiv'ы
Subscribe

  • Post a new comment

    Error

    default userpic

    Your reply will be screened

    Your IP address will be recorded 

    When you submit the form an invisible reCAPTCHA check will be performed.
    You must follow the Privacy Policy and Google Terms of use.
  • 0 comments