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| 1 | Mode splitting transmission effect of surface wave excitation through a metal hole array显示文摘The resonant frequencies of the excited surface waves on a metal hole array with respect to the incident angle were studied in the terahertz region.The experimental and theoretical results demonstrate that the resonant peak of surface wave excitation splits into two when transmitted through a metal hole array off-normally.The high-order mode with resonant frequency above the cutoff frequency fc(plasma frequency effect)has a shorter attenuation length than that of the low-order mode whose resonant frequency is below fc.The reason is that the high-order mode is a coupled mode consisting of surface wave and hole modes,while the low-order mode is just an excited surface wave(which can be considered as the spoof surface plasmons).Our investigation may open a door to distinguish the spoof surface plasmons and the coupled modes of surface waves and hole modes. | Lin Chen Yiming Zhu Xiaofei Zang Bin Cai Zhou Li Le Xie Songlin Zhuang | 2013 | Light(Science & Applications)2013，2，1： | 6 |
| 2 | Metasurfaces for manipulating terahertz waves显示文摘Terahertz(THz)science and technology have attracted significant attention based on their unique applications in non-destructive imaging,communications,spectroscopic detection,and sensing.However,traditional THz devices must be sufficiently thick to realise the desired wave-manipulating functions,which has hindered the development of THz integrated systems and applications.Metasurfaces,which are two-dimensional metamaterials consisting of predesigned meta-atoms,can accurately tailor the amplitudes,phases,and polarisations of electromagnetic waves at subwavelength resolutions,meaning they can provide a flexible platform for designing ultra-compact and high-performance THz components.This review focuses on recent advancements in metasurfaces for the wavefront manipulation of THz waves,including the planar metalens,holograms,arbitrary polarisation control,special beam generation,and active metasurface devices.Such ultra-compact devices with unique functionality make metasurface devices very attractive for applications such as imaging,encryption,information modulation,and THz communications.This progress report aims to highlight some novel approaches for designing ultra-compact THz devices and broaden the applications of metasurfaces in THz science. | Xiaofei Zang Bingshuang Yao Lin Chen Jingya Xie Xuguang Guo Alexei VBalakin Alexander P.Shkurinov Songlin Zhuang | 2021 | Light(Advanced Manufacturing)2021，2，2： | 4 |
| 3 | Dual-layered metasurfaces for asymmetric focusing显示文摘Asymmetric transmission,defined as the difference between the forward and backward transmission,enables a plethora of applications for on-chip integration and telecommunications.However,the traditional method for asymmetric transmission is to control the propagation direction of the waves,hindering further applications.Metasurfaces,a kind of two-dimensional metamaterials,have shown an unprecedented ability to manipulate the propagation direction,phase,and polarization of electromagnetic waves.Here we propose and experimentally demonstrate a metasurface-based directional device consisting of a geometric metasurface with spatially rotated microrods and metallic gratings,which can simultaneously control the phase,polarization,and propagation direction of waves,resulting in asymmetric focusing in the terahertz region.These dual-layered metasurfaces for asymmetric focusing can work in a wide bandwidth ranging from 0.6 to 1.1 THz.The flexible and robust approach for designing broadband asymmetric focusing may open a new avenue for compact devices with potential applications in encryption,information processing,and communication. | BINGSHUANG YAO XIAOFEI ZANG ZHEN L LIN CHEN JINGYA XIE YIMING ZHU SONGLIN ZHUANG | 2020 | Photonics Research2020，8，6： | 2 |
| 4 | Simultaneous passivation of bulk and interface defects through synergistic effect of anion and cation toward efficient and stable planar perovskite solar cells显示文摘Bulk and interface carrier nonradiative recombination losses impede the further improvement of power conversion efficiency(PCE)and stability of perovskite solar cells(PSCs).It is highly necessary to develop multifunctional strategy to minimize surface and interface nonradiative recombination losses.Herein,we report a bulk and interface defect passivation strategy via the synergistic effect of anions and cations,where multifunctional potassium sulphate(K_(2)SO_(4))is incorporated at SnO_(2)/perovskite interface.We find that K^(+)ions in K_(2)SO_(4)diffuse into perovskite layer and suppress the formation of bulk defects in perovskite films,and the SO_(4)^(2-)ions remain located at interface via the strong chemical interaction with SnO_(2)layer and perovskite layer,respectively.Through this synergistic modification strategy,effective defect passivation and improved energy band alignment are achieved simultaneously.These beneficial effects are translated into an efficiency increase from 19.45%to 21.18%with a low voltage deficit of0.53 V mainly as a result of boosted open-circuit voltage(V_(oc))after K_(2)SO_(4)modification.In addition,the K_(2)SO_(4)modification contributes to ameliorated stability.The present work provides a route to minimize bulk and interface nonradiative recombination losses for the simultaneous realization of PCE and stability enhancement by rational anion and cation synergistic engineering. | Cong Zhang Huaxin Wang Haiyun Li Qixin Zhuang Cheng Gong Xiaofei Hu Wensi Cai Shuangyi Zhao Jiangzhao Chen Zhigang Zang | 2021 | Journal of Energy Chemistry2021，30，12： | 2 |
| 5 | Are the energy conservation rates approximate in different cities for the same building with the same out- wall thermal insulation measures 显示文摘 | LONG ENSHEN ZANG ZIXUAN MA XIAOFEI | 2005 | Building and Environment2005，40，4： | 1 |
| 6 | Are the energy conservation rates (RVRs) approximate in different cities for the same building with the same outer-wall thermal insulation measures显示文摘 | LONG ENSHEN ZANG ZIXUAN MA XIAOFEI | 2005 | Building and Environment2005，40，4： | 1 |
| 7 | Triple-channel terahertz filter based on mode coupling of cavities resonance system显示文摘 | Xu Jiaming Chen Lin Zang Xiaofei | 2013 | Applied Physics Letters2013，103，16： | 1 |
| 8 | Geometric metasurface for polarization synthesis and multidimensional multiplexing of terahertz converged vortices显示文摘The investigation of converged twisted beams with a helical phase structure has a remarkable impact on both fundamental physics and practical applications.Geometric metasurfaces consisting of individually orientated metal/dielectric meta-atoms provide an ultracompact platform for generating converged vortices.However,it is still challenging to simultaneously focus left-handed and right-handed circularly polarized incident beams with pure geometric phase modulation,which hinders the independent operation on topological charges between these two helical components.Here we propose and experimentally demonstrate an approach to design terahertz geometric metasurfaces that can generate helicity-independent converged vortices with homogeneous polarization states by the superposition of two orthogonal helical vortices with identical topological charges.Furthermore,the multiplexing of polarization-rotatable multiple vortices in multiple dimensions,i.e.,in both longitudinal and transverse directions,and a vortex with an extended focal depth is confirmed by embedding polarization modulation into the geometric metasurfaces.The demonstrated approach provides a new way to simultaneously manipulate orthogonal helical components and expand the design dimension,enabling new applications of geometric metasurface devices in polarization optics,twisted-beam related image and edge detection,high capacity optical communication,and quantum information processing,to name a few. | YANG ZHU BINBIN LU ZHIYUAN FAN FUYONG YUE XIAOFEI ZANG ALEXEI V.BALAKIN ALEXANDER P.SHKURINOV YIMING ZHU SONGLIN ZHUANG | 2022 | Photonics Research2022，10，6： | 1 |
| 9 | Spin-decoupled metalens with intensity-tunable multiple focal points显示文摘The control of spin electromagnetic(EM)waves is of great significance in optical communications.Although geometric metasurfaces have shown unprecedented capability to manipulate the wavefronts of spin EM waves,it is still challenging to independently manipulate each spin state and intensity distribution,which inevitably degrades metasurface-based devices for further applications.Here we propose and experimentally demonstrate an approach to designing spin-decoupled metalenses based on pure geometric phase,i.e.,geometric metasurfaces with predesigned phase modulation possessing functionalities of both convex lenses and concave lenses.Under the illumination of left-/right-handed circularly polarized(LCP or RCP)terahertz(THz)waves,these metalenses can generate transversely/longitudinally distributed RCP/LCP multiple focal points.Since the helicity-dependent multiple focal points are locked to the polarization state of incident THz waves,the relative intensity between two orthogonal components can be controlled with different weights of LCP and RCP THz waves,leading to the intensity-tunable functionality.This robust approach for simultaneously manipulating orthogonal spin states and energy distributions of spin EM waves will open a new avenue for designing multifunctional devices and integrated communication systems. | BINGSHUANG YAO XIAOFEI ZANG YANG ZHU DAHAI YU JINGYA XIE LIN CHEN SEN HAN YIMING ZHU SONGLIN ZHUANG | 2021 | Photonics Research2021，9，6： | 1 |
| 10 | Two-dimensional elliptical electromagnetic superscatter and superabsorber显示文摘 | Zang Xiaofei Jiang Chun | 2010 | Optics Express2010，18，7： | 1 |
| 11 | A study on wheeze models显示文摘In this paper, the finite differenee schemes for the linear and nonlinear models of wheezes are given. The waveform of wheczes is analysed. It is shown that the numerical results of the lincar model of wheezes and Grotberg’s theorehcal results coincide well. The numerical results of the nonlincar model of wheczes are in qualita tive agreement with our expcrimental observations. It is suggested that the nonlinear elastance coefficient (β) causes damping, and is closely related to the flow limitation and the airway collapse. Wheezes result from the interachon between the fluid forces and the wall forces and the airway wall flutter is a forced-vibration, rather than a self vibration. | XU Jingping CHEN Qimin MIN Yijian ZANG Xiaofei and LU Bainian (Applied Acoustits Institute. Shaanxi Normal University. Xi’ an 710062) | 1994 | Chinese Journal of Acoustics1994，13，3： | 0 |
| 12 | Enhanced monopole transition strength from the cluster decay of ^(13)C显示文摘The inelastic excitations and cluster decay of ^(13)C have been measured using the reaction,9Be(^(13)C, ^(13)C* →~9Be + α)~9Be. We observe strong excitation to the 14.3-MeV(1/2-) resonant state from the cluster-decay channel, leading to an enhanced monopole matrix element of(6.3 ± 0.6) fm^2. This large cluster-related monopole strength is a clear indication of the cluster-structure domination of this state and is consistent with the recent prediction of the orthogonality condition model(OCM). It would be interesting to further explore the three-center molecular rotational band that is initiated from the observed band-head. | Jun Feng YanLin Ye Biao Yang ChengJian Lin HuiMin Jia DanYang Pang ZhiHuan Li JianLing Lou QiTe Li XiaoFei Yang Jing Li HongLiang Zang Qiang Liu Wei Jiang ChenGuang Li Yang Liu ZhiQiang Chen HongYi Wu ChunGuang Wang Wei Liu Xiang Wang JingJing Li DiWen Luo Ying Jiang ShiWei Bai JinYan Xu NanRu Ma LiJie Sun DongXi Wang | 2019 | Science China(Physics,Mechanics & Astronomy)2019，62，1： | 0 |
| 13 | Concentrations of phthalates metabolites in blood and semen and the potential effects on semen concentration and motility among residents of the Pearl River Delta region in China显示文摘Exposure to phthalate acid esters(PAEs)has been found to have adverse effects on reproduction of human and animal.However,the effects on the semen quality are controversial.In this study,we have collected paired blood and sperm samples from patients(n=103)at a medical clinic in Guangzhou,China,to determine the concentrations of eight phthalate metabolites∑8m-PAEs).The concentration ranges of P8m-PAEs were 2.7-55 and 0.99-17 ng/mL in blood and semen samples,respectively.MEHP(median,3.6 ng/mL in blood and 0.55 ng/mL in semen)and MnOP(median,3.4 ng/mL in blood and 0.69 ng/mL in semen)were the predominant analytes in both blood and semen samples.However,analytes were not correlated in paired blood and semen.Semen motility was significantly associated to the concentrations of∑8m-PAEs in semen,but it did not associate to the concentrations of PAEs in blood.Multi-linear regression analysis,including concentrations of PAEs in both blood and semen,as well as BMI,occupation,living habits,suggested that exposure to PAEs at current environmental levels had very limited effects on semen quality of population in Guangzhou,China. | Xiaofei Song Qiongfang Zhuo Shaoyu Tang Tianfa Xie Zhiyuan Chen Zhijun Zang Yanan Zhang Xiaojun Niu Hua Yin Feng Zeng Chang He | 2020 | Emerging Contaminants2020，6，1： | 0 |
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