Source
r/Optics•
LegitimateWorkUser

Can anyone help me find a Huygens' or Kirchoff's formula for finding diffraction angles around a partial barrier?

All I can find is math for apertures or slits, but I'm trying to research how different wavelengths in the far-field diffract around objects like rocks and mountains.

Posted Oct 16, 2019, 7:38 PM UTC

26
parrotlunaire•

Diffraction around obstacles is treated similarly to diffraction through apertures. See for example

http://www.pas.rochester.edu/~dmw/phy218/Lectures/Lect_72b.pdf

Calculation of diffraction around rough and/or irregular objects like rocks will require numerical methods.

3
LegitimateWorkUserOP•

Thanks for that! I'll probably just do a rough approximation in the ideal case of a simple wall at a distance.

1
LegitimateWorkUserOP•

oh, looks like I can't visit that domain or something.

1
parrotlunaire•

Fixed an error in the URL, try it again.

1
LegitimateWorkUserOP•

Thanks!

1
parrotlunaire•

Diffraction around obstacles is treated similarly to diffraction through apertures. See for example

http://www.pas.rochester.edu/~dmw/phy218/LWectures/Lect_72b.pdf

Calculation of iffraction around rough and/or irregular objects like rocks will require numerical methods.

1