Article
Materials Science, Multidisciplinary
Zhitong Sun, Jiahao Zhi, Yuanlu Chen, Bijun Xu, Zhifang Qiu, Xiaogang Wang, Xinning Yu
Summary: Unlike other methods that only modify the phase of cross-polarization components, this paper presents a novel concept for multifunctional manipulation of a metasurface through full-phase modulation. This method allows for simultaneous and independent amplitude and phase control of both co- and cross-polarization components of circularly polarized waves. Experimental results at 980nm wavelength demonstrate the feasibility of this complex amplitude control method for circularly polarized light (left or right circularly polarized).
RESULTS IN PHYSICS
(2023)
Article
Physics, Applied
Qiang Xiao, Qian Ma, Liang Wei Wu, Yue Gou, Jia Wei Wang, Wei Han Li, Rui Zhe Jiang, Xiang Wan, Tie Jun Cui
Summary: This paper presents a 3-bit reflective digital coding metasurface for broadband holography, which is demonstrated through simulations and experiments, showing good performance and potential applications in microwave imaging, information processing, and holographic data storage.
JOURNAL OF APPLIED PHYSICS
(2021)
Article
Nanoscience & Nanotechnology
Tonghao Liu, Xinmin Fu, Jiafu Wang, Yueyu Meng, Hua Ma, Xiaofeng Li, Ruichao Zhu, Xiaofeng Wang, Weihan Li, Wenxuan Tang, Yongfeng Li, Shaobo Qu
Summary: Amplitude-phase control for circular polarized (CP) waves is a hot research topic in electromagnetics due to their promising applications. This paper proposes an innovative strategy of single-layer achiral metasurfaces to independently manipulate the amplitude and phase of orthogonal CP waves, and verifies the feasibility through the design of a meta-hologram.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Materials Science, Multidisciplinary
Chaohui Wang, He-Xiu Xu, Tong Liu, Fan Zhang
Summary: The article introduces a new technique that achieves independent and arbitrary control of amplitude and phase responses for circularly polarized waves in full space through a hybrid phase approach. The concept is validated through experimental demonstration of a full-space dual-channel meta-hologram, manifesting the ability to display different images at different frequencies.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Yumin Gong, Baogang Quan, Fangrong Hu, Hong Wang, Longhui Zhang, Mingzhu Jiang, Lizhen Zeng, Xiaowen Zhang, Weilin Xu
Summary: This paper demonstrates a dual function modulator based on graphene metasurface, which can actively control the amplitude and phase of THz wave. The device maintains high modulation depth and phase difference at different incident angles.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2022)
Article
Nanoscience & Nanotechnology
Hai Lin Wang, Yan Kai Zhang, Tai Yi Zhang, Hui Feng Ma, Tie Jun Cui
Summary: This paper proposes a broadband and programmable amplitude-phase-jointcoding (APJC) information metasurface. By adjusting the bias voltage of the PIN diode integrated in the metaatom, the phase and amplitude of reflected electromagnetic waves can be independently controlled. The metasurface has the ability to independently control the energy allocation and wavefront tailoring of electromagnetic waves, and can be reprogrammed in real-time within a certain frequency range.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Materials Science, Multidisciplinary
Ratanak Phon, Minjae Lee, Chhunheng Lor, Sungjoon Lim
Summary: This work presents an approach for designing electrically tunable reflective metasurfaces that enable independent and simultaneous control of amplitude and phase, while also providing frequency tuning capability. The proposed metasurface can achieve various electromagnetic functionalities, including reflector, radar absorbing, dual and single-beam steering, and amplitude control.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Engineering, Electrical & Electronic
Lin-Xiao Wu, Na Zhang, Kai Qu, Ke Chen, Tian Jiang, Junming Zhao, Yijun Feng
Summary: In this article, a single-sheet metasurface (MS) is proposed for independently manipulating the transmissive phase and amplitude of linearly polarized electromagnetic (EM) wave. By integrating the proposed MS, a low-profile metalens antenna operating at 12.2 GHz is designed, fabricated, and validated. The results show that the proposed metalens antenna achieves high gain and low sidelobe level, making it a promising candidate for wireless and satellite system applications.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2022)
Article
Engineering, Electrical & Electronic
Si-Yu Yin, Jia-Lin Li, Qi-Cheng Ye, Yi-Ming Zhang
Summary: This paper proposes a low-profile metasurface (MS) lens antenna with flat-top radiation pattern. It utilizes a low-profile slot array as the feeding source and employs an MS lens close to the slot array to shape the beam into a flat-top radiation pattern. Compared with conventional MS lens antennas with a single feeding source, this design greatly reduces the overall profile and improves fabrication stability. The proposed MS lens antenna operates at a central frequency of 28.5 GHz for 5G millimeter-wave communications, and the measured results agree well with theoretical analyses and simulations. It achieves a flat-top pattern of over ±20 degrees with a peak gain of 10.5 dBi and has an overall size of 78 mm x 63 mm x 4.4 mm.
AEU-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS
(2023)
Article
Materials Science, Multidisciplinary
Fang Yuan, Qiang Chen, Yuejun Zheng, Weipeng Wan, Liang Ding, Zhanshan Sun, Yunqi Fu
Summary: We report a deterministic approach to decouple the phase and amplitude of reflected waves based on a single-layer metasurface. This approach allows for the generation of 1-bit phase meta-atoms with a natural 180-degree phase difference and controllable amplitude. These phase meta-atoms have potential in wavefront manipulation and radar applications.
MATERIALS & DESIGN
(2023)
Article
Physics, Multidisciplinary
Chao Wu, Quan Li, Song Zhao, Zhi-Hui Zhang, Shi-Jie Wei, Hong-Qiang Li
Summary: This study introduces a new meta-atom design strategy that achieves full complex-amplitude modulation and is applied to microwave meta-atom design. The strategy allows for comprehensive control of both amplitude and phase.
NEW JOURNAL OF PHYSICS
(2021)
Article
Physics, Multidisciplinary
Shuai Wang, Shun Wen, Zi-Lan Deng, Xiangping Li, Yuanmu Yang
Summary: This study proposes metasurface-based polarizers that can filter unpolarized light into light with any prescribed state of polarization (SOP) and degree of polarization (DOP). The metasurface's Jones matrix elements are designed using the adjoint method. Experimental demonstrations of the metasurface-based polarizers in the near-infrared frequencies show the conversion of unpolarized light into linear, elliptical, or circular polarizations with varying DOPs. This research introduces a new degree of freedom for metasurface polarization optics and has potential applications in polarization calibration and quantum state tomography.
PHYSICAL REVIEW LETTERS
(2023)
Article
Optics
Hongqiang Zhou, Xin Li, Zhentao Xu, Xiaowei Li, Guangzhou Geng, Junjie Li, Yongtian Wang, Lingling Huang
Summary: This paper presents a correlated triple amplitude and phase holographic encryption based on an all-dielectric metasurface. By smart design and optimized algorithm, it achieves the capability of encrypting information in multiple wavelength and polarization channels.
PHOTONICS RESEARCH
(2022)
Article
Nanoscience & Nanotechnology
Ruichao Zhu, Jiafu Wang, Xinmin Fu, Xingsi Liu, Tonghao Liu, Zuntian Chu, Yajuan Han, Tianshuo Qiu, Sai Sui, Shaobo Qu, Cheng-Wei Qiu
Summary: In this paper, a method of inverse design of meta-atoms using customized deep ResNet is proposed to simultaneously and independently tailor the phase and amplitude of transmitted waves. Two holographic metasurfaces designed using this method significantly enhance design efficiency and verify the reliability of the design. This work paves the way for the intelligent design of metasurfaces.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Physics, Applied
Jianfeng Yang, Juan Chen, Lei Quan, Xiaoming Chen, Hongyu Shi, Yajun Liu, Wei Xue
Summary: This study proposes a strategy combining active transmission amplitude control with phase coding to dynamically tailor the transmitted field patterns in the microwave regime. Manipulation of the radiated EM waves is achieved through phase coding and active amplitude control.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2022)
Article
Optics
Hang Dong, Zhixin Sun, Jingyi Li, Yahui Li, Wei Zhang, Guangyong Jin
Summary: This paper calculates thermal stresses and adsorption forces to determine laser cleaning conditions and establishes relevant models. Experimental results show that the removal effect is better with increasing nanosecond pulse delay, with the best effect achieved at 600 milliseconds pulse delay. Based on the findings, the mechanisms of oxide film removal involve thermal stress against adsorption and plasma shock wave breaking the oxide layer.
OPTICS COMMUNICATIONS
(2024)
Article
Optics
Junjie Zhang, Wenjun Li, Bingtao Li, Zheng-Da Hu, Jicheng Wang, Feng Zhang, Lei Wang
Summary: A multilayer thin film device structure based on Tamm plasmons is proposed for high-performance near-infrared hot electron photodetectors. By optimizing the device structure parameters, high responsivity detection can be achieved.
OPTICS COMMUNICATIONS
(2024)
Article
Optics
Hong Huang, Zhiguang Han
Summary: This paper proposes a new ghost imaging reconstruction method using ordered orthogonal Hadamard derived speckle as the illumination speckle series, and introduces the alternating direction multiplier method to improve the imaging performance. The evaluation results show that the method can achieve high-quality reconstructed images under low sampling conditions.
OPTICS COMMUNICATIONS
(2024)
Article
Optics
Moritsugu Sakamoto, Yuki Ono, Kohei Noda, Tomoyuki Sasaki, Nobuhiro Kawatsuki, Masayuki Tanaka, Hiroshi Ono
Summary: The effect of wavelength and polarization of illuminating light in polarization imaging for birefringent objects placed behind a scattering structure was experimentally investigated. The result shows that the spatial distribution of the birefringent object was more clearly visualized in the longer wavelength combined with circularly polarized light illumination. This finding indicates the potential of using polarization imaging with circularly polarized light illumination in the near-infrared range for visualizing birefringent objects with scattering.
OPTICS COMMUNICATIONS
(2024)
Article
Optics
Peihui Du, Hongfang Wang, Pengwei Li, Rukeyemuhan Abadula, Hmbat Batelbek, Min Gao
Summary: In this study, we theoretically demonstrate the strong coupling between Tamm plasmons and exciton polaritons in metal Al/DBR-molecular structures, extending the operating wavelength to the deep ultraviolet region. The coupling strength can be effectively manipulated by adjusting the structure parameters, offering potential benefits for the development of new-style optical filters.
OPTICS COMMUNICATIONS
(2024)
Article
Optics
Priyanka Chaudhary, Akhilesh Kumar Mishra
Summary: We design and numerically investigate the switching dynamics between two outer waveguides in a parity-time (PT)-symmetric adiabatically coupled three waveguides nonlinear directional coupler (NLDC) system. The study shows that the device can provide switching even when the middle waveguide is nonlinear and the outer waveguides are linear. Furthermore, the effect of loss to gain ratio on critical switching power and the impact of launched light power and gain (loss) value on transmitted power are also studied.
OPTICS COMMUNICATIONS
(2024)
Article
Optics
Wei Feng, Yongcong Yi, Shuyang Li, Zhi Xiong, Boya Xie, Zhen Zeng
Summary: Traditional imaging techniques are ineffective in achieving clear underwater imaging due to the presence of scattering media. Single-pixel imaging (SPI) system based on Unet++ offers a solution for reconstructing high-quality images in highly turbid water environments.
OPTICS COMMUNICATIONS
(2024)
Article
Optics
Xiaorui Qu, Jufeng Zhao, Haijun Tian, Junjie Zhu, Guangmang Cui
Summary: This paper studies the structural similarity between RGB and spectral images and proposes a non-iterative Images Structure Similarity (ISS) method for fast reconstruction of spectral images. Additionally, the input of the Deep Image Prior (DIP) method is optimized for the first time by using the initial spectral data reconstructed by ISS, leading to an improved starting value for the iteration. The experimental results show that the proposed method can enhance the reconstruction quality in both spectral and spatial resolutions, while significantly reducing the reconstruction time compared to other DIP-based methods.
OPTICS COMMUNICATIONS
(2024)
Article
Optics
Donghe Sheng, Zhe Han, Zanyang Qiao, Tianpei Dong, Chenxi Wang, Huiping Tian
Summary: In this study, a distributed multi-parameter sensor based on an etched few-mode multi-core fiber is proposed, allowing simultaneous sensing of temperature, strain, and sample refractive index. By combining space division multiplexing and stimulated Brillouin scattering, the sensor achieves high sensitivity in detecting these parameters.
OPTICS COMMUNICATIONS
(2024)
Article
Optics
Dehao Chen, Zhenwu Mo, Zehong Liang, Junjie Jiang, Huilin Tang, Yidan Sun, Ziyu Wang, Quanfeng Wei, Yanru Chen, Dongmei Deng
Summary: In this study, a novel family of elliptical Airyprime vortex beams (EAPVBs) is introduced, which inherits the excellent self-focusing properties of the circular Airyprime vortex beam (CAPVB). The asymmetric focusing of EAPVB leads to some novel properties, such as the splitting of high-order optical vortex and the formation of two foci. By taking advantage of these properties, EAPVB is constructed as a tunable optical bottle for particle capture.
OPTICS COMMUNICATIONS
(2024)
Article
Optics
Xiao Ma, Qiongchan Shao, Jian-Jun He
Summary: In this study, an SHS chip based on Su8 waveguide was designed and fabricated. By physically adjusting the metal electrodes and compensating for transmissivity fluctuations, the generation of side ripples was successfully suppressed.
OPTICS COMMUNICATIONS
(2024)
Article
Optics
Hongbin Zhang, Jiansen Du, Zongtao Chi, Hailin Cong, Bin Wang
Summary: In this paper, a novel type of dual-wavelength confocal metalens is proposed to solve the spatial crosstalk between two wavelengths. The metalens can greatly reduce the spatial crosstalk and achieve high precision and efficiency in confocal imaging. It can also focus light in specific wavelength ranges, making it suitable for imaging, microscopy, and optical fiber communication.
OPTICS COMMUNICATIONS
(2024)
Article
Optics
Rui Qiu, Guanmao Zhang, Shaokai Du, Jie Liu, Hongyu Jib, Kaiyun Bi, Bochuan Xing, Guangchao Diao
Summary: Recent research has developed an achromatic metalens that shows potential for replacing traditional lenses. This study focuses on a continuously variable focus height broadband achromatic metalens for long-wavelength infrared applications. By optimizing materials and parameters, chromatic aberration is effectively corrected, making it suitable for high-resolution LWIR imaging and spectroscopy systems.
OPTICS COMMUNICATIONS
(2024)
Article
Optics
Marcos Troncoso-Costas, Gaurav Jain, Yiming Li, Mohammed Patel, Lakshmi Narayanan Venkatasubramani, Sean O'Duill, Frank Smyth, Andrew Ellis, Francisco Diaz-Otero, Colm Browning, Liam Barry
Summary: In this work, a fast-switching tuneable laser capable of wide wavelength coverage, low noise and linewidth levels suitable for high-order modulation formats is demonstrated. The laser is characterized to cover a wavelength range of 35 nm in the C-band with nanosecond switching time. It is used to successfully demonstrate 480 Gbit/s 16QAM transmission over 25 km of single-mode fiber for a wavelength range of 19 nm.
OPTICS COMMUNICATIONS
(2024)
Article
Optics
Takeshi Moriyasu, Masahiko Tani, Hideaki Kitahara, Takashi Furuya, Jessica Afalla, Toshiro Kohmoto, Daishiro Koide, Hiroki Sato, Mitsutaka Kumakura
Summary: Optical pump-terahertz probe spectroscopy was used to study the photocarrier dynamics and optical characteristics of semiconductor Si. The results showed that the thickness of Si influenced the transmitted terahertz field amplitude and peak delay time, indicating differences in photocarrier dynamics between different Si materials.
OPTICS COMMUNICATIONS
(2024)