Article
Chemistry, Multidisciplinary
Mengjia Cen, Jiawei Wang, Jianxun Liu, Huilin He, Ke Li, Wenfeng Cai, Tun Cao, Yan Jun Liu
Summary: A new type of self-aligned suspended chiral bilayer metasurface is demonstrated, which can exhibit significant optical chirality and label-free discrimination of chiral molecules at zeptomole level, with higher sensitivity compared to conventional circular dichroism spectroscopy.
ADVANCED MATERIALS
(2022)
Article
Engineering, Mechanical
Majid Kheybari, Zihan Wang, Hongyi Xu, Osama R. Bilal
Summary: This paper studies the key factors of metasurfaces as human-machine interfaces, including the effects of periodicity, curvature, and geometric parameters on operational frequencies. The research results are crucial for the adoption of metasurface technology in future applications such as soft robotics, wearable devices, and human-machine interaction interfaces.
EXTREME MECHANICS LETTERS
(2022)
Review
Chemistry, Multidisciplinary
Zexiang Han, Fei Wang, Juehan Sun, Xiaoli Wang, Zhiyong Tang
Summary: Artificial chiral nanostructures have been extensively studied for their unique chiroptical activities. Controlled twisted stacking of nanomaterials has emerged as a general strategy to introduce optical chirality into achiral solid-state systems. Recent progress in planar chiral metasurfaces is summarized, discussing the building blocks, fabrication methods, as well as circular dichroism and its modulation in twisted stacked nanostructures. The review highlights the growing applications of these chiral metasurfaces, including polarization conversion, information encryption, chiral sensing, and as an engineering platform for hybrid metadevices. Future prospects are also provided.
ADVANCED MATERIALS
(2023)
Article
Optics
Igor Ryzhov, Ramil F. Malikov, Andrey Malyshev, Victor A. Malyshev
Summary: The study investigates exotic optical response of a planar metasurface with regularly spaced quantum three-level emitters, showing complex interplay with intrinsic nonlinearity leading to various effects. Predicted nonlinear effects manifest at low excitation field intensities, making the system promising for applications such as reflectors, bistable mirrors, and generators.
Article
Chemistry, Multidisciplinary
Xiaolong Zhu, Jacob Engelberg, Sergei Remennik, Binbin Zhou, Jonas Nyvold Pedersen, Peter Uhd Jepsen, Uriel Levy, Anders Kristensen
Summary: This work presents a cost-effective and lithography-free method for printing optical metasurfaces. By utilizing resonant absorption of laser light in an optical cavity formed by a multilayer structure, nearly perfect light absorption is achieved through interferometric control. This approach demonstrates reliability, upscaling, and subwavelength resolution in creating metasurfaces for structural colors, optical holograms, and diffractive optical elements.
Review
Chemistry, Multidisciplinary
Cheng-Wei Qiu, Tan Zhang, Guangwei Hu, Yuri Kivshar
Summary: The full manipulation of electromagnetic waves through optical metasurfaces is at the forefront of modern optical technologies. Future developments include hybrid metasurfaces using low-dimensional materials and their applications in biomedical, computational, and quantum fields. Challenges and opportunities in the future of metasurface physics and engineering are also discussed.
Article
Nanoscience & Nanotechnology
Maxime Pinaud, Georges Humbert, Sebastian Engelbrecht, Lionel Merlat, Bernd M. Fischer, Aurelian Crunteanu
Summary: Chalcogenide phase change materials (PCMs) with broadband responses and nonvolatile and reversible transitions have been investigated for their potential in controlling THz waves. The optical control of specific states of germanium telluride (GeTe) PCM has been demonstrated, showing promise for future optically reconfigurable THz devices with high functionality. Experimentally confirmed all dielectric GeTe-based THz polarizers present broadband responses and high extinction ratios, indicating potential for future disruptive developments in THz wave manipulation.
Article
Computer Science, Interdisciplinary Applications
Sayan Sarkar, Bhaskar Gupta
Summary: This paper presents an ultrathin multiband chiral metasurface that provides good angular stability. The metasurface achieves asymmetric transmission for linear-to-circular polarization and cross-polarized transmission for linearly polarized incident waves in multiple frequency bands.
INTERNATIONAL JOURNAL OF RF AND MICROWAVE COMPUTER-AIDED ENGINEERING
(2022)
Article
Multidisciplinary Sciences
Soon Wei Daniel Lim, Joon-Suh Park, Dmitry Kazakov, Christina M. Spaegele, Ahmed H. Dorrah, Maryna L. Meretska, Federico Capasso
Summary: This research achieves the precise positioning of phase singularities using wavefront-shaping devices and metasurface technology, providing simplified and miniaturized solutions for applications such as optical traps and super-resolution microscopes.
NATURE COMMUNICATIONS
(2023)
Article
Optics
Xinjian Lu, Xiaoyin Li, Yinghui Guo, Mingbo Pu, Jiangyu Wang, Yaxin Zhang, Xiong Li, Xiaoliang Ma, Xiangang Luo
Summary: This paper proposes a method to achieve broadband high-efficiency polarization-multiplexing using a geometric phase polymerized liquid crystal metasurface, allowing for polarization-switchable functionalities. By designing broadband high-efficiency polymerized liquid crystal metalenses, spin-controlled behavior is obtained and experimental results demonstrate stable and excellent optical performance. The low-cost polymerized liquid crystal metasurfaces enable large-scale patterning and have unrivalled advantages in terms of low waveguide absorption.
PHOTONICS RESEARCH
(2022)
Article
Optics
Thomas Pertsch, Shumin Xiao, Arka Majumdar, Guixin LI
Summary: Optical metasurfaces are a crucial area of research worldwide due to their potential applications in imaging, wavefront engineering, nonlinear optics, and quantum information processing. The feature issue "Optical Metasurfaces: Fundamentals and Applications in Photonics Research" aims to publish and disseminate the latest works in optical metasurfaces among the photonics community.
PHOTONICS RESEARCH
(2023)
Review
Chemistry, Multidisciplinary
Jian Dong, Yuanyuan Zhu, Zhifu Liu, Meng Wang
Summary: Liquid metal as a conductive fluid has shown important application value in wearable devices, 3D printing, reconfigurable antennas, and other fields.
Article
Nanoscience & Nanotechnology
Stephanie C. Malek, Adam C. Overvig, Sajan Shrestha, Nanfang Yu
Summary: Optical metasurfaces for wavefront shaping face challenges in actively tuning and reconfiguring wavefronts, with nonlocal metasurfaces functioning based on modes supported by adjacent meta-units. These nonlocal metasurfaces can produce sharp spectral features but typically lack spatial control of the outgoing wavefront. Leveraging enhanced light-matter interactions associated with sharp Fano resonances, active modulation of optical spectra and wavefronts can be explored without the need for unusual materials and fabrication or active control of individual meta-units.
Article
Nanoscience & Nanotechnology
Yana Izdebskaya, Ziwei Yang, Mingkai Liu, Duk-Yong Choi, Andrei Komar, Dragomir N. Neshev, Ilya Shadrivov
Summary: Dielectric metasurfaces infiltrated with liquid crystals can be tuned by magnetic field, offering advantages over other liquid crystal tuning methods. This approach allows for gradual tuning of resonances without the need for pre-alignment or structured electrodes.
Review
Nanoscience & Nanotechnology
Kang Du, Hamdi Barkaoui, Xudong Zhang, Limin Jin, Qinghai Song, Shumin Xiao
Summary: This article reviews the latest research progress in multifunctional and tunable metasurfaces. It introduces the evolution of metasurfaces, the concepts and design methods of multifunctional metasurfaces, and discusses how to realize metasurfaces with both multifunctionality and tunability. Additionally, various future research directions and applications of metasurfaces are also foreseen.
Article
Optics
Song Gao, Changyi Zhou, Wenwei Liu, Wenjing Yue, Shuqi Chen, Sang-Shin Lee, Duk-Yong Choi, Yang Li
Summary: In this study, a double dielectric metasurface based on two polarization-filtering meta-atoms is proposed as an efficient and simple solution to address the challenges of multilayered metallic metasurfaces in the visible band. The presented double dielectric metasurface exhibits multiple functionalities and significant advantages over traditional metallic metasurfaces in terms of design complexity, efficiency, and fabrication.
LASER & PHOTONICS REVIEWS
(2022)
Article
Optics
Jiajun Meng, Luke Weston, Sivacarendran Balendhran, Dandan Wen, Jasper J. Cadusch, Ranjith Rajasekharan Unnithan, Kenneth B. Crozier
Summary: Chemical identification using mid-infrared spectra has various applications, including industrial production, food production, pharmaceutical manufacturing, and environmental monitoring. Researchers have demonstrated a compact microspectrometer platform that utilizes a machine learning algorithm to analyze the mid-infrared fingerprints, achieving high accuracy identification and concentration quantification.
LASER & PHOTONICS REVIEWS
(2022)
Article
Optics
Ruoxing Wang, Guanhua Ren, Zhi Ren, Jianlong Liu, Songtao Li, Xianzhong Chen, Li Li
Summary: In this study, a multi-foci metalens model was proposed to reconstruct THz holographic images with subwavelength resolution. The model, based on dielectric metasurfaces composed of silicon micropillars with spatially variant orientations, can generate high-resolution target images on its focal plane. The experimental results demonstrate that the reconstructed images have subwavelength resolution.
Article
Nanoscience & Nanotechnology
Jasper J. Cadusch, Jiajun Meng, Dandan Wen, Vivek Raj Shrestha, Kenneth B. Crozier
Summary: Conventional spectrometers are accurate and reliable but are not widely used in field-deployed applications due to their bulk and susceptibility to mechanical shock. In this study, a compact and lightweight microspectrometer chip based on doped silicon nanophotonic elements is demonstrated. By adjusting the dimensions of each element, the pixels of the chip have a structural color and unique responsivity spectra, eliminating the need for optical elements like gratings or interferometers. The fabricated microspectrometer chip offers performance comparable to commercial spectrometers and is suitable for field deployment in hand-held devices.
Article
Optics
Dandan Wen, Kai Pan, Jiajun Meng, Xuanguang Wu, Xuyue Guo, Peng Li, Sheng Liu, Dong Li, Bingyan Wei, Xin Xie, Dexing Yang, Jianlin Zhao, Kenneth B. Crozier
Summary: This study demonstrates a method to generate an array of CVBs using a single optical element, which significantly increases the number of polarization channels compared to previous methods and solves the issue of unequal intensity distributions. Furthermore, it allows for control of CVB orders and polarization rotation, enhancing the flexibility of vector field control.
LASER & PHOTONICS REVIEWS
(2022)
Article
Chemistry, Multidisciplinary
Leixin Liu, Wenwei Liu, Fei Wang, Hua Cheng, Duk-Yong Choi, Jianguo Tian, Yangjian Cai, Shuqi Chen
Summary: This study successfully manipulates the spatial coherence of light fields by loading different random phase distributions onto the wavefront, thereby generating partially coherent light with a predefined degree of coherence. This design strategy can easily be applied to manipulate arbitrary phase-only special beams with the same degree of coherence.
Article
Optics
Xi Zhao, Zhancheng Li, Jiaqi Cheng, Wenwei Liu, Shiwang Yu, Yuebian Zhang, Hua Cheng, Jianguo Tian, Shuqi Chen
Summary: This study utilizes dielectric bilayer polyatomic metasurfaces to achieve the maximum optical intrinsic chirality over a wide bandwidth range, providing a new method for spin-selective optical wave manipulation.
Article
Materials Science, Multidisciplinary
Jiaqi Cheng, Zhancheng Li, Duk-Yong Choi, Shiwang Yu, Wenwei Liu, Haoyu Wang, Yuebian Zhang, Hua Cheng, Jianguo Tian, Shuqi Chen
Summary: A new design strategy based on the collective interference effect in diatomic metasurfaces is proposed to achieve full and subtle intensity manipulation of circularly polarized optical waves. This design approach allows for convenient control of the reflection intensity of circularly polarized waves by changing a single structural parameter in the diatomic metasurface. The proposed approach has been experimentally demonstrated to enable high-level grayscale imaging with subwavelength spatial resolution, showing promise for advanced display and information encryption applications.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Yuttana Intaravanne, Muhammad Afnan Ansari, Hammad Ahmed, Narina Bileckaja, Huabing Yin, Xianzhong Chen
Summary: In this paper, a microscope with multiple functionalities is proposed and developed based on spatial multiplexing and polarization splitting. A novel geometric metasurface is used to achieve spiral phase profile and phase gradient profiles, enabling simultaneous imaging with different optical properties. Experimental results validate its capabilities in edge imaging, polarimetric imaging, and conventional microscope imaging.
Article
Materials Science, Multidisciplinary
Yuttana Intaravanne, Muhammad Afnan Ansari, Hammad Ahmed, Xianzhong Chen
Summary: Polarization and wavelength are important properties of light. Engineered polarization and wavelength profiles have gained interest due to their unique optical features. Traditional methods for simultaneous polarization and wavelength control suffer from limitations, but metasurfaces offer promising solutions. This study proposes and realizes polarization digital numbers with ten different wavelengths, using a geometric metasurface for wavelength multiplexing, phase multiplexing, and polarization rotation. The use of deep learning enhances digital number identification accuracy. This work provides more design flexibility by simultaneously controlling wavelength and polarization, with potential applications in virtual reality, image steganography, and anti-counterfeiting.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Optics
Ruoxing Wang, Muhammad Afnan Ansari, Hammad Ahmed, Yan Li, Wenfeng Cai, Yanjun Liu, Songtao Li, Jianlong Liu, Li Li, Xianzhong Chen
Summary: Researchers have developed and demonstrated a compact high-resolution spectrometer with a multi-foci metalens, which uses wavelength and phase multiplexing to accurately map wavelength information to focal points on the same plane.
LIGHT-SCIENCE & APPLICATIONS
(2023)
Article
Physics, Multidisciplinary
Hong Liang, Hammad Ahmed, Wing Yim Tam, Xianzhong Chen, Jensen Li
Summary: In this study, a geometric phase metasurface is used to remotely and continuously control the vortex states of a heralded photon. Metasurfaces, which utilize engineered nanostructures, offer control over different dimensions of light and have versatile applications. By selecting the polarization of the heralding photon, the orbital angular momentum (OAM) of the signal photon can be remotely controlled. This research has important implications for quantum communication and information processing.
COMMUNICATIONS PHYSICS
(2023)
Article
Physics, Applied
Xinyi Bi, Xuyue Guo, Xuanguang Wu, Xinhao Fan, Bingyan Wei, Dandan Wen, Sheng Liu, Jianlin Zhao, Peng Li
Summary: This paper proposes a dielectric metasurface that can achieve object edge detection in the full visible band. By combining two optical differential methods, a tetratomic macropixel metasurface is designed to enable polarization-correlated interference based on dual geometric phase modulation. The metasurface can achieve object edge detection under different wavelengths, even under white light conditions, providing a flexible approach for wideband two-dimensional edge detection.
APPLIED PHYSICS LETTERS
(2023)
Article
Multidisciplinary Sciences
Hammad Ahmed, Muhammad Afnan Ansari, Yan Li, Thomas Zentgraf, Muhammad Qasim Mehmood, Xianzhong Chen
Summary: A metasurface is used to generate hybrid grafted perfect vector vortex beams with dynamic control. These beams have spatially variant rates of polarization change due to the involvement of more topological charges. The ability to dynamically control perfect vector vortex beams has not been reported before, and this study demonstrates their generation and control using a multifunctional metasurface and a rotating half waveplate.
NATURE COMMUNICATIONS
(2023)
Article
Nanoscience & Nanotechnology
Jasper J. Cadusch, Jiajun Meng, Dandan Wen, Vivek Raj Shrestha, Kenneth B. Crozier
Summary: The article introduces a microspectrometer chip based on doped silicon nanophotonic elements for compact and lightweight spectroscopic measurements. By adjusting the nanometric dimensions of each element, structural color is achieved, allowing spectroscopic measurements without traditional optical elements. Experimental results show that the microspectrometer chip performs comparably to commercial spectrometers, making it suitable for field deployment.