Article
Optics
Qianwei Zhou, Mingze Liu, Wenqi Zhu, Lu Chen, Yongze Ren, Henri J. Lezec, Yanqing Lu, Amit Agrawal, Ting Xu
Summary: By utilizing a single-layer dielectric metasurface, the broadband generation of PVBs across the entire visible spectrum is demonstrated, with their perfect characteristics verified through rigorous optimization of structural parameters. Additionally, it is shown that the ellipticity and diameter of a PVB can be controlled by adjusting the structural parameters of the metasurface, increasing the design flexibility.
LASER & PHOTONICS REVIEWS
(2021)
Article
Nanoscience & Nanotechnology
Christopher Munley, Arnab Manna, David Sharp, Minho Choi, Hao A. Nguyen, Brandi M. Cossairt, Mo Li, Arthur W. Barnard, Arka Majumdar
Summary: Engineering the dispersion of light in a metasurface enables control of the light-matter interaction, and we demonstrate a metasurface with a flat dispersion at visible wavelengths. By integrating cadmium selenide nanoplatelets, we measured coupled photoluminescence into the flatband. This enables potential applications in nonlinear image processing and topological photonics.
Article
Physics, Applied
Ataollah Kalantari Osgouei, Amir Ghobadi, Bahram Khalichi, Rana Asgari Sabet, Onur Tokel, Ekmel Ozbay
Summary: This article investigates semiconductor-based sub-wavelength metasurfaces for photodetectors and demonstrates the design of a tunable color filter and an adaptive photodetector. Different optical states can be achieved by changing the incident light polarization and the phase transitions of the phase change material.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2022)
Article
Physics, Applied
Hualin Li, Wenjing Yue, Song Gao
Summary: This study demonstrates the ability of dielectric metasurfaces to independently control transmitted and reflected light wavefronts at two distinct wavelengths with high efficiency. The metasurfaces allow for high transmission and reflection of orthogonally linear-polarized light, transforming incident plane waves into focused point beams and focused vortex beams. The functionality diversity of a single meta-device is enriched through spatial multiplexing, reducing crosstalk. Densely packed meta-atoms further improve the efficiency of the metasurface device.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2023)
Article
Engineering, Electrical & Electronic
Byeong Je Jeon, Soo Jin Kim
Summary: This study introduces and analyzes a metasurface coating on silicon for efficient anti-reflection by leveraging the design rules of the Chebyshev transformer. The design achieves broadband suppression of reflected light with reflection of less than 3% in the wavelength range from 400 to 1100 nm, offering important insights for systematic and effective anti-reflection schemes for diverse optical devices.
IEEE PHOTONICS JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
Vinh X. Truong, Julian Bachmann, Andreas-Neil Unterreiner, James P. Blinco, Christopher Barner-Kowollik
Summary: In this study, we present a wavelength-orthogonal crosslinking method for hydrogel networks using two red-shifted chromophores. The photoreactivity of one chromophore is pH-dependent, and by incorporating a suitable photoacid generator, the activation wavelength of the other chromophore can be selectively controlled. This system was successfully applied to the design of hydrogels with independently tunable stiffness using green or blue light.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Optics
Shuqing Lin, Zhenrui Lin, Yujie Chen, Zhongzheng Lin, Yuanhui Wen, Jie Liu, Siyuan Yu
Summary: In this study, a method for generating and sorting an accelerating plane-wave beam family is proposed and experimentally verified for a spatially multiplexed multi-channel free space optical communication scheme. A 7-channel optical communication system is demonstrated with an increase in obstruction-evading ability of up to 0.6 beam waist over Gaussian beams.
Article
Computer Science, Information Systems
Xuqian Jiang, Fuju Ye, Hongrui Tan, Sisi Luo, Haoyang Cui, Lei Chen
Summary: In this paper, a digital programmable metasurface is proposed to achieve various electromagnetic functions by sensing the color changes of incident light. The integration of PIN diodes and trichromatic sensors forms a complete intelligent system with adaptive and reconfigurable coding patterns. Measurement results show good agreement with simulation results, validating the design.
Article
Optics
Yuning Wu, Zhiwei Shi, Huan Jiang, Yaohua Deng
Summary: In this study, a Dammann grating based on metasurface was designed, which can be controlled through multi-beam interference to achieve a change of the working wavelength. It successfully generated 5 x 5 diffraction spot arrays in the wavelength range of 480-510 nm and 950-1020 nm.
Article
Optics
Ziheng Qian, Shengnan Tian, Wei Zhou, Junwei Wang, Hanming Guo, Songlin Zhuang
Summary: In this study, an all-dielectric polarization-modulated broadband achromatic bifunctional metalens (BABM) is proposed, which achieves bifunctional self-compensation by applying two independent phases on the metalens. The BABM has advantages of being flexible, single-layer, convenient in manufacturing, and optical path miniaturization friendly, and will open a new page in advanced integrated optical systems.
Article
Optics
Ziheng Qian, Shengnan Tian, Wei Zhou, Junwei Wang, Hanming Guo, Songlin Zhuang
Summary: In this article, an all-dielectric polarization-modulated broadband achromatic bifunctional metalens (BABM) is proposed, which can achieve achromatic focusing and beam rotation in the visible light range. Unlike the current phase compensate schemes, this metalens is capable of achieving both functions and controlling two independent phases, without relying on circularly polarized incidence. The proposed metalens has advantages of flexibility, simplicity in manufacturing, and optical path miniaturization.
Article
Chemistry, Multidisciplinary
Ran Zhang, Zhichao Zhang, Yuanyi Fan, Hao Zhang, Jinkui Chu
Summary: In this paper, a single-layer transmissive chiral plasma metasurface (SCPMs) suitable for visible wavelength is proposed to overcome the limitations of single-layer chiral metamaterials. The SCPMs is composed of double orthogonal rectangular slots and a spatial pi/4 inclined arrangement, which enables it to achieve a high circular polarization extinction ratio and strong circular polarization transmittance difference. With a wavelength of 532 nm, the SCPMs demonstrates circular polarization extinction ratio and circular polarization transmittance difference of over 1000 and 0.28, respectively. Additionally, the fabrication of SCPMs is realized through the thermally evaporated deposition technique and focused ion beam system, making it a compact structure with a simple process and excellent properties.
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
Chemistry, Multidisciplinary
Dowan Kim, Hyung-Jun Park, Seo-Hee Jung, Won Jun Pyo, Syed Zahid Hassan, Hye Ryun Sim, Jeong-Hwan Lee, Dong-Woo Jee, Dae Sung Chung
Summary: A multichannel/multicolor visible light communication (VLC) system using entirely organic components is developed to demonstrate indoor lighting applications. The system utilizes tricolor (R/G/B)-selective organic photodetector arrays as receivers and tricolor organic light-emitting diode arrays as emitters. The study examines the effect of emission angle-dependent wavelength shift and luminosity function on the performance of the VLC system.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Physical
Xinyan Zhang, Xinmin Yu, Jixin Li, Lei Xu, Baiyan Li
Summary: The study found that PNi/CN-1 exhibited the most outstanding photocatalytic activity under visible light irradiation, with a hydrogen evolution rate 19.3 and 3.7 times higher than that of PNi and CN, respectively.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Multidisciplinary
Zhongwen Long, Xinyu Shen, Xiaobo Zhang, Hui Zhang, Qianwei Zhou, Cheng Yang, Yuzhang Liang, Ting Xu
Summary: A plasmon-enhanced ultrasensitive and selective digital-readout imaging immunoassay is reported for microRNA quantification. The technique utilizes DNA hybridization technology to selectively place plasmonic nanocavities on a slide, dramatically enhancing the scattering imaging signal of gold nanoparticles in dark-field microscopy. A convolutional neural network algorithm is employed to automatically recognize and count the nanoparticles, excluding counting errors induced by pollutants or other noises.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Plant Sciences
Xue-Yi Zhou, Nian-Hong Wang, Cheng-Wei Qiu, Liming Luo, Mian Zhang, Shuo Zhang, Zi-Feng Gao, Imrul Mosaddek Ahmed, Feibo Wu
Summary: Cadmium (Cd) is a harmful heavy metal contaminant, and long non-coding RNAs (lncRNAs) play significant roles in plant response to Cd stress. Transcriptome analysis of Cd-tolerant and Cd-sensitive barley genotypes revealed novel lncRNAs and differentially expressed lncRNAs between the two genotypes. Prediction and experimental analysis showed that some lncRNAs may act as target mimics of miRNAs in barley. Functional analysis of a key lncRNA demonstrated its important role in plant Cd tolerance.
ENVIRONMENTAL AND EXPERIMENTAL BOTANY
(2023)
Article
Nanoscience & Nanotechnology
Guangwei Hu, Weiliang Ma, Debo Hu, Jing Wu, Chunqi Zheng, Kaipeng Liu, Xudong Zhang, Xiang Ni, Jianing Chen, Xinliang Zhang, Qing Dai, Joshua D. Caldwell, Alexander Paarmann, Andrea Alu, Peining Li, Cheng-Wei Qiu
Summary: Various optical crystals with opposite permittivity components have been observed and characterized in the mid-infrared regime. These crystals possess hyperbolic polaritons with large-momenta optical modes and wave confinement, making them promising for nanophotonic on-chip technologies. Monoclinic CdWO4 crystals are shown to exhibit symmetry-broken hyperbolic phonon polaritons and offer new opportunities for polaritonic phenomena.
NATURE NANOTECHNOLOGY
(2023)
Article
Optics
Jingxuan Wei, Yang Chen, Ying Li, Wei Li, Junsheng Xie, Chengkuo Lee, Kostya S. Novoselov, Cheng-Wei Qiu
Summary: This study presents a novel approach for circularly polarized light detection in the mid-infrared region, using geometric photodetectors and graphene ribbons. It offers a high-quality, filterless solution for on-chip CPL detection.
Article
Physics, Multidisciplinary
Tengfang Kuang, Ran Huang, Wei Xiong, Yunlan Zuo, Xiang Han, Franco Nori, Cheng-Wei Qiu, Hui Luo, Hui Jing, Guangzong Xiao
Summary: Recently, a phonon laser based on dispersive optomechanical coupling has been demonstrated. This laser device allows flexible control of large-mass objects and reduces noise in high vacuum. However, achieving phonon lasing with micro-scale objects is still challenging.
Article
Chemistry, Multidisciplinary
Yanzeng Zhang, Peicheng Lin, Pengcheng Huo, Mingze Liu, Yongze Ren, Song Zhang, Qianwei Zhou, Yilin Wang, Yan-qing Lu, Ting Xu
Summary: Conventional microscopes cannot achieve both spiral phase contrast imaging and bright-field imaging at the same time, requiring additional optical elements for mode switching. We present a microscopy setup that incorporates a dielectric metasurface capable of achieving both imaging modes synchronously. The metasurface can focus the light and perform a spatial differentiation operation, allowing for simultaneous acquisition of high-frequency edge information and the entirety of the object. This approach is expected to have applications in microscopy, biomedicine, and materials science due to its planar architecture and ultrathin thickness.
Article
Optics
Chunsheng Xia, Yongze Ren, Peicheng Lin, Yilin Wang, Ting Xu
Summary: We demonstrate a single-layer silicon metasurface-based polarizing beam splitter (PBS) that can deflect two orthogonally linearly polarized infrared light beams to on-demand angles. This metasurface consists of silicon anisotropic microstructures, providing different phase profiles for the two orthogonal polarization states. Experimental results show good splitting performance for x- and y-polarized light at a wavelength of 10 μm. This planar and thin PBS has potential applications in compact thermal infrared systems.
Article
Plant Sciences
Pengfei Hao, Chengwei Qiu, Yi Wu, Wenxing Liu, Eva Vincze, Feibo Wu, Shuijin Hua
Summary: Comparing the leaf metabolome and transcriptome of tomato plants grown under SCP, chemical fertilizer, and organic fertilizer, it was found that SCP treatment improved primary and secondary metabolism in tomato leaves, promoted growth, and reduced environmental emissions. SCP also down-regulated ethylene-related genes, while up-regulating jasmonic acid and gibberellin related genes, leading to a balanced growth and environment adaptation ability in plants. This study provides insight into the molecular and metabolomic responses of tomato plants to SCP treatment, contributing to the development of climate-smart agriculture.
PLANT GROWTH REGULATION
(2023)
Article
Plant Sciences
Cheng-Wei Qiu, Yue Ma, Qing-Qing Wang, Man-Man Fu, Chengdao Li, Yizhou Wang, Feibo Wu
Summary: This study revealed the positive role and key molecular mechanism of HvHMT2 in drought tolerance in barley by strengthening polyamine metabolism and scavenging reactive oxygen species. These findings provide a valuable gene for breeding drought-tolerant barley cultivars and facilitate breeding schemes in other crops in a changing global climate.
Article
Chemistry, Multidisciplinary
Yihui Wang, Wei Sha, Mi Xiao, Cheng-Wei Qiu, Liang Gao
Summary: This study presents an intelligent design framework for thermal metamaterials using a pre-trained deep learning model. It can achieve the desired functional structures of thermal metamaterials with exceptional speed and efficiency, regardless of arbitrary geometry. This research sets up a novel paradigm for the automatic and real-time design of thermal metamaterials.
ADVANCED MATERIALS
(2023)
Article
Physics, Multidisciplinary
Guoqiang Xu, Xue Zhou, Ying Li, Qitao Cao, Weijin Chen, Yunfeng Xiao, Lan Yang, Cheng-Wei Qiu
Summary: This study reports the first discovery of chiral heat transport, which is only manifested in the vicinity of exceptional point (EP) and exhibits significant robustness. The results reveal the chirality in heat transport process and provide a novel strategy for manipulating mass, charge, and diffusive light.
PHYSICAL REVIEW LETTERS
(2023)
Article
Engineering, Electrical & Electronic
Xiaohu Chen, Lei Jin, Cong Chen, Simin Li, Jie Zhang, Pengjiu Zhao, Shoupeng Liu, Yong Liang, Xin Jin, Cheng-Wei Qiu, Hui Li
Summary: This article introduces a miniaturized metalens that can be used for monitoring brain activities of animals or endoscope diagnosis. The metalens is ultrathin and lightweight, offering a potential alternative to bulky refractive lenses. By utilizing the nonlinear properties of two-photon excitation, the metalens can focus at one wavelength and enable multichannel microscopy. The design process is simplified, manufacturing costs are reduced, and the metalens maintains a high transmittance for visible light. Experimental results demonstrate that the metalens enables two-photon biological imaging with subcellular resolution.
IEEE PHOTONICS TECHNOLOGY LETTERS
(2023)
Article
Engineering, Electrical & Electronic
Yuzhi Shi, Hong Luo, Sha Xiong, Tao He, Tongtong Zhu, Qinghua Song, Lei-Ming Zhou, Pin Chieh Wu, Zhanshan Wang, Cheng-Wei Qiu, Xinbin Cheng
Summary: Harnessing exotic optical forces can lead to various biophysical applications and novel light-matter interactions. This study presents a coordinated scheme to simultaneously utilize pulling force and lateral force, achieving a dynamically controlled 2D microvehicle. By leveraging the helicity-dependent features of these forces and adjusting the ellipticity of incident light, the ratio of both forces can be dynamically and arbitrarily controlled.
IEEE PHOTONICS JOURNAL
(2023)
Article
Nanoscience & Nanotechnology
Qi Jia, Yanxia Zhang, Bojian Shi, Hang Li, Xiaoxin Li, Rui Feng, Fangkui Sun, Yongyin Cao, Jian Wang, Cheng-Wei Qiu, Weiqiang Ding
Summary: In this study, a beam sorter is proposed that uses a diffractive deep neural network to simultaneously handle the polarization, angular index, and radius index of vector vortex beams. The robust sorting of 120 Laguerre-Gaussian modes in the visible spectrum is experimentally demonstrated, highlighting the potential of deep neural networks in optical field manipulation.
Article
Engineering, Environmental
Cheng-Wei Qiu, Yue Ma, Zi-Feng Gao, Jakkrit Sreesaeng, Shuo Zhang, Wenxing Liu, Imrul Mosaddek Ahmed, Shengguan Cai, Yizhou Wang, Guoping Zhang, Feibo Wu
Summary: This study provides a comprehensive examination of genetic variation in aluminum-tolerant Tibetan wild barley through genome-wide profiling. The identification of key genes related to aluminum tolerance in barley and the strategy of manipulating these genes offer potential for developing more aluminum-tolerant barley cultivars.
JOURNAL OF HAZARDOUS MATERIALS
(2024)