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3 October 2022 Multi-armed chiral surface relief formation in azo-polymers with rotating petal beams (Conference Presentation)
Arata Tomita, Adam Vallés, Katsuhiko Miyamoto, Takashige Omatsu
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Proceedings Volume PC12212, Molecular and Nano Machines V; PC122120B (2022) https://doi.org/10.1117/12.2632237
Event: SPIE Organic Photonics + Electronics, 2022, San Diego, California, United States
Abstract
Orbital angular momentum (OAM) of optical vortex can twist azo-polymers to form a micron-scale chiral surface relief, reflecting the helical wavefront of the irradiated optical vortex beam, with the aid of spin angular momentum (SAM). In this work, we present a new approach for light induced chiral surface relief formation, in which chiral surface reliefs of azopolymers with multiple arms are formed by the irradiation of temporally rotating petal beams without OAM, but assisted by the SAM associated with circular polarization. Also, we demonstrate the orientation control of the fabricated multiple-armed chiral surface reliefs in azo-polymers by properly controlling the exposure time.
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Arata Tomita, Adam Vallés, Katsuhiko Miyamoto, and Takashige Omatsu "Multi-armed chiral surface relief formation in azo-polymers with rotating petal beams (Conference Presentation)", Proc. SPIE PC12212, Molecular and Nano Machines V, PC122120B (3 October 2022); https://doi.org/10.1117/12.2632237
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KEYWORDS
Optical vortices
Chiral metamaterials
Control systems
Molecular aggregates
Molecules
Optical storage
Polarization
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