Photon-material Interaction Based on Single Silt Diffraction

Heisenberg's uncertainty principle explains single slit diffraction1 where maximum is always at the centre. The same experiment has been conducted but with transparent walls i.e. the material present on either side of the slit, instead of opaque material. The observed result is a minimum at the centre in between two maximum. It is intuitive that atleast some photons passed through the slit must end up at the centre of the diffraction pattern but the result is different. The diffraction pattern occurs as the photons interact with the material around the slit. While uncertainty principle cannot give quantitative explanation as the photons confined in gap between slits still occupy the same space whether it is passing through a slit or not. This paper discusses various experiments and results by examining the interactions between photons and the material of the wall which makes the slit for better understanding of properties of light.