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9 March 2022 Self-steering lasing system enabled by soft photo-actuators with sandwich-like structure
Yan-Song Zhang, Zhi-Wei Lin, Jia-De Lin, Chia-Rong Lee
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Proceedings Volume PC12023, Emerging Liquid Crystal Technologies XVII; PC120230B (2022) https://doi.org/10.1117/12.2614656
Event: SPIE OPTO, 2022, San Francisco, California, United States
Abstract
With the flourish development of artificial intelligence, lasing with tailored features generated by photonic crystal lasers play a more important part in the field of optics and in potential applications such as self-control, LiDAR, telecommunications, and, holography imaging. Here, a self-steering lasing emission from a defect-mode sandwich-like structure consisting of photomechanical deformed azobenzene cholesteric liquid crystal elastomer is demonstrated. The output single-mode lasing emission can be fast steered by UV irradiation to a widely angular tuning range of approximately ±60° with an excitation threshold of Eth = 7.9 ± 0.5 μJ cm−2 per pulse. We envision that this flexible, portable and durable sandwich-like laser system with controllable lasing beam steering and mechanical robustness will open a gate for self-driving vehicle, self-sustained machines and optical devices with the core feature of photomechanical transduction.
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Yan-Song Zhang, Zhi-Wei Lin, Jia-De Lin, and Chia-Rong Lee "Self-steering lasing system enabled by soft photo-actuators with sandwich-like structure", Proc. SPIE PC12023, Emerging Liquid Crystal Technologies XVII, PC120230B (9 March 2022); https://doi.org/10.1117/12.2614656
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KEYWORDS
Liquid crystals
Actuators
Laser applications
Laser crystals
Laser systems engineering
Optical components
Photonic crystals
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