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Fabrication Of Large Mechanically Flexible Multi-Layered Pdms Optical Devices, Robert S. Green
Fabrication Of Large Mechanically Flexible Multi-Layered Pdms Optical Devices, Robert S. Green
Electronic Thesis and Dissertation Repository
Mechanically flexible large area polydimethylsiloxane (PDMS) optical devices are fabricated using soft-lithography techniques based on replica moulding. These non-rigid optical devices can be designed as sheets to act as either light concentrators (collectors) or diffusers (illuminators) based on the position and geometry of micro-optical structures (MOSs) embedded within the sheet or imprinted on its surface. The active surface area of the device can range from less than a sq. cm to several sq. m. The performance of the large area optical device is a function of the location and geometry of micro-optical structures, thickness and shape of the flexible waveguide, …
Controlled Guidance Of Light In Large Area Flexible Optical Waveguide Sheets, Chloë O. Nicholson-Smith
Controlled Guidance Of Light In Large Area Flexible Optical Waveguide Sheets, Chloë O. Nicholson-Smith
Electronic Thesis and Dissertation Repository
Large surface area, thin, polymer optical waveguides are an emerging technology that enable a wide variety of light collection and illumination systems to be created for passive lighting, solar collectors, and safety lighting for motorized vehicles. This research builds on design of rigid concentrator and diffuser waveguides, proposing and evaluating modifications for the design of a flexible waveguide combining both concentrating and diffusing functionalities. The waveguides are thin, mechanically flexible sheets with thicknesses in the range of mm, and active surfaces from a few cm2 to several m2. Regions of the functional surface are designed to act …