He uses a great variety of color palettes from nearly monochromatic to highly polychromatic. Image aberrations can be broken down into two main classes, monochromatic, and polychromatic. However, speckle patterns can be observed in polychromatic light in some conditions. Excavations at Nishapur show both monochromatic and polychromatic artwork from the 8th and 9th centuries. These photons are deemed white light, i.e. polychromatic, and are the source of synchrotron radiation. It irradiates the sample with polychromatic light which the sample absorbs depending on its properties. The polychromatic light can reach multiple chromophores in human skin&colon; mainly hemoglobin, water, and melanin. For polychromatic sources, wavelength ranges can be selected using filters. The chancel is floored in polychromatic marble. Inside it is elaborately decorated with polychromatic marble. On The Green, featuring vibrant polychromatic brickwork intended to evoke the Doge's Palace in Venice. He used polychromatic stonework at Manchester Assize Courts. The exterior was relieved by panels of glazed polychromatic glazed tiles set in concrete. The work of marquetry in polychromatic stones is by Corbarelli. The combination of polychromatic marbles with bronze is also reminiscent of Raphael's Chigi Chapel.