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3 May 2020 High-performance reconfigurable meta-optics based on optical phase change materials (Rising Researcher) (Conference Presentation)
Tian Gu, Mikhail Shalaginov, Sensong An, Sawyer D. Campbell, Yifei Zhang, Carlos Ríos, Lei Kang, Myungkoo Kang, Claudia Gonçalves, Clara Rivero-Baleine, Kathleen Richardson, Douglas H. Werner, Hualiang Zhang, Juejun Hu
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Proceedings Volume 11389, Micro- and Nanotechnology Sensors, Systems, and Applications XII; 113890O (2020) https://doi.org/10.1117/12.2557439
Event: SPIE Defense + Commercial Sensing, 2020, Online Only
Abstract
The dramatic optical property change of optical phase change materials (O-PCMs) allows the realization of tunable optical and photonic devices with enhanced optical functionalities, such as reconfigurable optics, optical switches and routers, and photonic memories. Recently we developed a new class of non-volatile O-PCM, Ge-Sb-Se-Te (GSST), which features unprecedented broadband optical transparency (1-18.5 micron), large optical contrast (dn = 2) and significantly improved glass forming ability. Leveraging the remarkable material property and advanced design methods, we develop a suite of reconfigurable, all-dielectric metasurface optics with unprecedented performance. In one example, a focal length tunable transmissive metalens is demonstrated showing diffraction-limited imaging performance and complete optical function switching during the phase transition, which sets the foundation for ultra-compact, solid-state, tunable meta-optical systems.
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Tian Gu, Mikhail Shalaginov, Sensong An, Sawyer D. Campbell, Yifei Zhang, Carlos Ríos, Lei Kang, Myungkoo Kang, Claudia Gonçalves, Clara Rivero-Baleine, Kathleen Richardson, Douglas H. Werner, Hualiang Zhang, and Juejun Hu "High-performance reconfigurable meta-optics based on optical phase change materials (Rising Researcher) (Conference Presentation)", Proc. SPIE 11389, Micro- and Nanotechnology Sensors, Systems, and Applications XII, 113890O (3 May 2020); https://doi.org/10.1117/12.2557439
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KEYWORDS
Imaging systems
Glasses
Optical properties
Optical switching
Photonic devices
Solid state physics
Switching
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