Abstract

Chalcogenide glasses (ChGs) are considered of great importance for nonlinear optics and infrared technologies due to their high refractive index and transparency over MIR region [1]. Among the ChGs, As₂S₃ have received special attention for presenting a variety of photosensible properties, including photocrystallization, photodarkening and, photodiffusion of metals [2]. Although silver photodoping of As₂S₃ has been the most studied phenomenon, the synthesis of silver nanostructures in ChGs has not been exploited, despite the interests on the quantum confined effect. In this work, we have elaborated a single-step synthesis of silver sulfide nanocrystals (NCs) in arsenic sulfide solution aiming at photonic applications. Femtosecond laser micromachining was used to produce 2D waveguides in thin films of As₂S₃ containing Ag₂S NCs, which could improve material performance [3].

© 2015 IEEE