- #1
invisigo
- 10
- 0
In the classical picture of an electromagnetic wave, the wavelength is specified along the direction of travel. However, with EM shielding that is using a grid (microwave, chicken wire), I've heard that so long as the spaces are less than the wavelength, you will achieve electromagnetic shielding. This description implies that there is a transverse wavelength to a EM wave that is "blocked", but in our classical picture, we never defined a transverse wavelength.
Can anyone explain this dilemma or propose a physical picture that works?
Can anyone explain this dilemma or propose a physical picture that works?