Fabrication and Characterization of Functionalized Wet-Chemical Silver Coated Films on Glass for Optical Systems

A method for fabricating an Ag coated beam splitter is reported. This shows a specific patterned transmittance by immersing glass substrates in a mixture of H(2)SO(4) and H(2)O(2) to make negatively charged oxygen sites at the silica surface and then in ethanolic solutions of AgNO(3) and butylamine. We controlled the soaking time and molar ratios of the mixture of AgNO(3) and butylamine to a pattern % transmittance of electroless coated glass surface. Finally, we made a functionalized beam splitter showing step function like transmittance and applied this to make multiple laser beams for display and laser machinings.