apart expressing the cause of the reflection of light from the surface of polished objects, ibn al-haytham in his al-manāẓir claims that the acceptance or rejection of light by these objects is only due to their polished surfaces and have nothing to do with their solidity, because the reflection of light from the surface of soft polished objects such as water is also possible. kamāl al-dīn al-f...

Nowadays, fibre optic sensors have been widely used to detect temperature, pressure, vibration and other physical properties. To design high performance optics sensors, sensing elements such as light propagation need be investigated for parameters absorbance, transmittance scattering. In this study, the backscattered is studied modelled using MATLAB based on Brillouin Rayleigh The scattering ef...