27 September 2016 Design, fabrication and characterization of solution-based molded chalcogenide optics for infrared application
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Abstract
We report design, fabrication and characterization of molded chalcogenide microlens array for Infrared sensing applications. A master of desired microlens array with high sag value is prepared using ultraviolet lithography and thermal reflow method on a positive photoresist (ma–P1275HV). The negative replica of the master is created using polydimethylsiloxane which serves as a mold for micro-molding. Further, chalcogenide solution is prepared in ethanolamine solvent and spin coated on a substrate to get a uniform film; these films are characterized and are found to have the same optical properties as the parent bulk chalcogenide glass. Finally, the microlens array is fabricated by the micro-molding of chalcogenide film. Fabricated chalcogenide microlenses are characterized for geometrical parameters, which are used to estimate the optical parameters.
Conference Presentation
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Awakash Dixit, Radhakant Singh, Amit K. Agarwal, Amitava Ghosh, Prabhat K. Dwivedi, "Design, fabrication and characterization of solution-based molded chalcogenide optics for infrared application", Proc. SPIE 9949, Polymer Optics and Molded Glass Optics: Design, Fabrication, and Materials 2016, 994903 (27 September 2016); doi: 10.1117/12.2235893; https://doi.org/10.1117/12.2235893
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