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This fantastic publication will teach you a lot about my world. See below some of my results.  Linan Jiang, Kyung-Jo Kim, Fracis M. Reininger, Sebastien, Jiguet and Stanly Pau Journal  2020 Optical Society of America  Full text

Patterned color filter arrays are important components in digital cameras, camcorders, scanners, and multispectral detection and imaging instruments. In addition to the rapid and continuous progress to improve camera resolu- tion and the efficiency of imaging sensors, research into the design of color filter arrays is important to extend the imaging capability beyond conventional applications. […]

Low-cost packaging of VCSELs (vertical cavity surface emitting lasers) is essential for their applications in computers, communications and sensing.   We discuss the fabrication of polymer-based microlenses on VCSEL arrays for beam shaping and efficient coupling with optical fibers.             Drop–on-Demand Microfab Inkjet technique is employed to deposit SU8 lenses on GaAs substrates and on arrays of high-performance, […]