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Li Z, Liu K, Li C, Liu Y, Du Y, Li T, Sun Z, Zhao L, Yang J. Active encoding of flexural wave with non-diffractive Talbot effect. Sci Rep 2024; 14:22573. [PMID: 39343825 PMCID: PMC11439909 DOI: 10.1038/s41598-024-73189-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2024] [Accepted: 09/16/2024] [Indexed: 10/01/2024] Open
Abstract
In this paper, a flexural Mikaelian lens in thin plate is designed by using conformation transformation. The propagation characteristics of flexural waves in the lens are investigated through rays trajectory equation, simulation analyses, and experimental tests, confirming the self-focusing properties of the Mikaelian lens. Additionally, the study explores the Talbot effect for flexural waves, revealing through simulation studies that the Talbot effect within the Mikaelian lens exhibits nearly diffraction-free properties. Building on the non-diffractive nature of the Talbot effect within the Mikaelian lens, we explore the potential for encoding flexural waves using active interference sources. The simulation and experiment results demonstrate the good performance of the designed active encoding system. This work opens up new avenues for the encoding of flexural waves, presenting promising implications for applications in communication such as structural health monitoring, wireless communication in solid media and data transmission in robotics and other areas related to flexural wave technology.
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Affiliation(s)
- Zhiqiang Li
- Beijing Institute of Graphic Communication, 1 Xinghua Avenue (Band 2), Beijing, 102600, China
| | - Kaiming Liu
- Beijing Institute of Graphic Communication, 1 Xinghua Avenue (Band 2), Beijing, 102600, China
| | - Chunlin Li
- State Key Laboratory for Strength and Vibration of Mechanical Structures, Department of Engineering Mechanics, School of Aerospace Engineering, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Yongquan Liu
- State Key Laboratory for Strength and Vibration of Mechanical Structures, Department of Engineering Mechanics, School of Aerospace Engineering, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Yanping Du
- Beijing Institute of Graphic Communication, 1 Xinghua Avenue (Band 2), Beijing, 102600, China
| | - Ting Li
- Beijing Institute of Graphic Communication, 1 Xinghua Avenue (Band 2), Beijing, 102600, China
| | - Zhaoyong Sun
- Beijing Institute of Graphic Communication, 1 Xinghua Avenue (Band 2), Beijing, 102600, China.
| | - Liuxian Zhao
- Institute of Sound and Vibration Research, Hefei University of Technology, 193 Tunxi Road, Hefei, 230009, China.
| | - Jun Yang
- Key Laboratory of Noise and Vibration Research, Institute of Acoustics, Chinese Academy of Sciences, 21 North 4th Ring Road, Beijing, 100190, China.
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Hu T, Feng X, Yang Z, Zhao M. Design of scalable metalens array for optical addressing. FRONTIERS OF OPTOELECTRONICS 2022; 15:32. [PMID: 36637552 PMCID: PMC9756259 DOI: 10.1007/s12200-022-00035-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/19/2021] [Accepted: 01/25/2022] [Indexed: 06/17/2023]
Abstract
Large-scale trapped-ion quantum computers hold great promise to outperform classical computers and are crucially desirable for finance, pharmaceutical industry, fundamental chemistry and other fields. Currently, a big challenge for trapped-ion quantum computers is the poor scalability mainly brought by the optical elements that are used for optical addressing. Metasurfaces provide a promising solution due to their excellent flexibility and integration ability. Here, we propose and numerically demonstrate a scalable off-axis metalens array for optical addressing working at the wavelength of 350 nm. Metalens arrays designed for x linearly polarized and left circularly polarized light respectively can focus the collimated addressing beam array into a compact focused spot array with spot spacing of 5 μm, featuring crosstalk below 0.82%.
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Affiliation(s)
- Tie Hu
- School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Xing Feng
- School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Zhenyu Yang
- School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Ming Zhao
- School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan, 430074, China.
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Vashistha V, Krawczyk M, Serebryannikov AE, A E Vandenbosch G. Light guiding, bending, and splitting via local modification of interfaces of a photonic waveguide. OPTICS LETTERS 2019; 44:4725-4728. [PMID: 31568427 DOI: 10.1364/ol.44.004725] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Accepted: 08/22/2019] [Indexed: 06/10/2023]
Abstract
A general approach to the surface control of the localization, guiding, and redirecting of volume-mode light in photonic waveguides via tailoring their interfaces (surfaces) is proposed. The approach is demonstrated for dielectric rod-type photonic crystal slabs, whose regular and defect parts are distinguished by whether the nanocylinders are covered by metal caps. Thus, the rod-array part of the structure is not changed, while the local modifications are only applied to the interfaces. The basic functionalities, i.e., localized volume wave guiding, bending, and splitting are achievable. Selective dual-mode operation is possible due to the co-existence of a defect mode and a chainlike mode in one structure.
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