The scattering of photons from charged particles is called Compton scattering after Arthur Compton who was the first to measure photon-electron scattering in 1922. When the incoming photon gives part of its energy to the electron, then the scattered photon has lower energy and according to the Planck relationship has lower frequency and longer wavelength. The wavelength change in such scattering depends only upon the angle of scattering for a given target particle.
an invisibility cloak in development provides complete imperceptibility across the visible, infrared, and ultraviolet spectrum by deviating light around objects. so far, they have been able to make an object about the size of an orange completely disappear, while also reducing 95% of a user's shadow.