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18 June 2024 Reprogrammable flat optics from maskless photo-morphing of azopolymers
Francesco Reda, Marcella Salvatore, Fabio Borbone, Pasqualino Maddalena, Stefano Luigi Oscurato
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Proceedings Volume 13015, Photosensitive Materials and their Applications III; 130150L (2024) https://doi.org/10.1117/12.3014394
Event: SPIE Photonics Europe, 2024, Strasbourg, France
Abstract
Flat patterned surfaces, traditionally realized through lithographic techniques, can manipulate the wavefront of light within minimal thicknesses comparable to the wavelength of light, offering significant potential for advances in science and technology. Amorphous polymers containing azobenzene molecules introduce a revolutionary approach to the direct fabrication of reprogrammable flat optical devices. In my work, I use azopolymers in combination with digital holographic illumination to enable maskless and reversible surface patterning. This innovative approach allows the design and the fabrication of reconfigurable optical elements, where light is used to fabricate the device, to tune its functionality or even completely reprogram it while the optical component is still maintained aligned in an operational setup.
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Francesco Reda, Marcella Salvatore, Fabio Borbone, Pasqualino Maddalena, and Stefano Luigi Oscurato "Reprogrammable flat optics from maskless photo-morphing of azopolymers", Proc. SPIE 13015, Photosensitive Materials and their Applications III, 130150L (18 June 2024); https://doi.org/10.1117/12.3014394
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KEYWORDS
Flat optics
Fabrication
Lithography
Digital holography
Light sources and illumination
Optical surfaces
Photoresist materials
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