A method for fabricating Ag coated beam splitter is reported. This is showing specific patterned transmittance by
immersing glass substrates in the mixture of H2SO4 and H2O2 to make negatively charged oxygen sites at silica surface
and then in ethanolic solutions of AgNO3 and butylamine. We controlled the soaking time and molar ratios of the
mixture of AgNO3 and butylamine to pattern % transmittance of electroless coated glass surface. Finally, we made a
functionalized beam splitters showing step function like transmittance and applied this to make multiple laser beams for
display and laser machining.
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