Article
Optics
Xiaofei Liu, Weichao Yan, Zhongquan Nie, Yue Liang, Yuxiao Wang, Zehui Jiang, Yinglin Song, Xueru Zhang
Summary: An all-optical scheme for generating longitudinal magnetization superoscillation is proposed based on vectorial diffraction theory and the inverse Faraday effect. By studying azimuthally polarized high-order Laguerre-Gaussian vortex modes, it is found that controlling the parameters can switch the induced magnetic domain from sub-wavelength magnetization to super-oscillation magnetization hotspot. The mechanisms behind the well-defined magnetization phenomena are uncovered, with potential applications in various fields.
Article
Optics
Klemensas Laurinavicius, Sergej Orlov, Ada Gajauskaite
Summary: Invariant wave packets with optical vorticity and polarization are investigated in this work, including their structure, propagation properties, and the influence of polarization inhomogeneity on pulse duration.
Article
Optics
Xiang Ma, Shaobo Li, Xiaodong Liang, Wenqi Yu, Quanan Chen, Qiao Yin Lu, Weihua Guo
Summary: This study presents a high-speed directly modulated vector beam laser with azimuthally polarized emission. By integrating a proper second-order grating on a microcylinder cavity, the laser achieves single mode lasing and efficient surface emission. The laser is designed in detail through theoretical and numerical analysis, and a high 3 dB bandwidth modulation of 40 GHz is achieved.
Article
Optics
Paulius Slevas, Sergej Orlov, Ernestas Nacius, Orestas Ulcinas
Summary: This study focused on creating non-diffracting Bessel vortical beams using axicons, allowing high aspect ratio modifications inside transparent materials. By azimuthal modulation using geometrical phase elements, high power superpositions of multiple Bessel vortices can be achieved.
OPTICS COMMUNICATIONS
(2022)
Article
Chemistry, Applied
Cheng-Kai Liu, Ming -Chi Liao, Chi-Tang Huang, Shao-Hao Liao, Ko -Ting Cheng
Summary: This paper demonstrates the detection of the polarization state of polarized light using azimuthally symmetric dye-doped liquid crystals (AS-DdLCs). Two methods are proposed, one involving image capture and analysis, and the other utilizing image comparison with a database. Techniques to improve detection accuracy and the comparison between the two methods are also discussed.
Article
Engineering, Electrical & Electronic
Xu Han, Shuai Ding, Qing-Song Jia, Wei-Hao Zhang, Hao Tang, Zhengping Zhang, Xiong Wang, Yuliang Zhou, Yong-Mao Huang, Bing-Zhong Wang
Summary: In this article, a novel design concept for generating special beams based on time-reversal aperture (TRA) theory is proposed. Different forms of TRAs are investigated to overcome the limitations of traditional TRA in special beam generation. A wideband dual-polarization phase-modulation metasurface (MS) is designed, which can generate sloping Bessel Beam when illuminated by TE plane wave and accelerating beam when incident with a TM plane wave. The proposed MS achieves a dual-polarization independent phase shift range of over 400 degrees without dimensional changes and maintains high transmittance with transmission loss below 0.3 dB.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2023)
Article
Optics
Sanbin Chen, Jianlang Li, Kenichi Ueda
Summary: A rotary Nd:YAG disk amplifier with a doughnut-shaped pump beam has been demonstrated, which maintains high amplification efficiency and high-quality amplification. Using a 2 mm thick disk as the amplifier, the research investigates the amplification of small signals with different power under different pump power. It is found that under the maximum absorbed pump power, the seed power of 1 W and 5 W can be amplified by a factor of about 3.3 and 2, respectively, while maintaining good beam quality and polarization purity.
OPTICS AND LASER TECHNOLOGY
(2023)
Article
Physics, Multidisciplinary
Qian Xu, Yonggen Xu, Liang Zhao, Wenli Liu, Yongtao Liu
Summary: Analytical formulas for the normalized spectral Stokes parameters of the partially coherent radially and azimuthally polarized beams with vortex phase propagating through the turbulent atmosphere are derived and the polarization properties have been studied in detail. The findings show that different correlation lengths lead to nonuniform distribution of degree of polarization and the normalized spectral Stokes parameters, as well as the polarization singularity splitting. Additionally, the rotation of distributions of orientation angles and the normalized spectral Stokes parameters is observed due to the vortex phase, with the rotation degree becoming more obvious with increasing topological charge number. Furthermore, larger topological charge number can reduce the speed of polarization singularities destroyed by atmospheric turbulence, indicating a stronger resistance ability. These studies are important for free-space optical communications and polarization lidar system.
Article
Materials Science, Multidisciplinary
Tonghao Liu, Yueyu Meng, Jiafu Wang, Hua Ma, Weihan Li, Chao Liu, Ruichao Zhu, Lin Zheng, Wenxuan Tang, Shaobo Qu
Summary: An inspiring strategy of multichannel Airy beam generator based on multichannel amplitude and phase controlled metasurface is proposed, which can independently generate Airy beams for linear polarized waves and orthogonal circular polarized waves. This multichannel Airy beam generator holds tremendous potential in various applications such as sensing and communication.
MATERIALS & DESIGN
(2023)
Article
Optics
Qian Xu, Liang Zhao, Yonggen Xu
Summary: This paper derives analytical formulas for the average intensity of partially coherent radially and azimuthally polarized vortex beams propagating through the turbulent atmosphere based on the extended Huygens-Fresnel principle. It is found that the beams with larger topological charge can maintain a dark hollow structure during propagation in turbulence.
Article
Optics
X. U. N. M. I. N. G. Cai, X. I. N. Zhao, W. E. Wang, M. E. N. G. H. U. Fan, J. I. N. G. Huang
Summary: Using the model of focused few-cycle azimuthally polarized ultrashort pulses, the study investigates electron acceleration by these pulses. The results show that the maximum kinetic energy of the electrons increases as the time domain widths of the pulses increase under the same peak intensity and beam waist width. However, further increasing the pulse time domain widths leads to a slow decrease in the maximum kinetic energy of the electrons. The diffusion angle of the electron beam can be as small as 2 and is relatively unaffected by the carrier envelope phase of the pulse. By selecting pulses with appropriate time domain widths, electron beams with small diffusion angles and high kinetic energy can be obtained. Additionally, the increase in pulse duration is found to result in a significant redshift of the radiation spectrum of the acceleration radiation.
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS
(2022)
Article
Physics, Applied
San-Bin Chen, Jian-Lang Li, Ken-Ichi Ueda
Summary: In this study, an azimuthally polarized laser pulse was produced using a unique laser system, achieving high polarization degree and power. This advancement provides an important experimental basis for various applications.
APPLIED PHYSICS EXPRESS
(2021)
Article
Optics
Zhongquan Nie, Zibo Ning, Xiaofei Liu, Yu Zhang, Hengjing Wang, Ensi Cao, Weichao Yan
Summary: We propose a simple feasible scheme for creating multiple ultra-long longitudinal magnetization textures. The scheme involves focusing azimuthally polarized circular Airy vortex beams onto an isotropic magneto-optical medium, based on vectorial diffraction theory and the inverse Faraday effect. The study demonstrates the possibility of generating super-resolved scalable magnetization needles, steerable magnetization oscillations, and nested magnetization tubes with opposite polarities through the extended interplay between polarization singularity and vortex phase.
Article
Engineering, Electrical & Electronic
Zhiyuan Chen, Ming-Chun Tang, Mei Li, Da Yi, Dongmei Mu, Richard W. Ziolkowski
Summary: A planar single-layer parasitic swastika-shaped structure is developed in this study for mutual coupling reduction in wideband, high-density circularly polarized arrays. Experimental results demonstrate the effectiveness of this structure in canceling out the currents induced by circular polarization coupling. Additionally, the proposed antenna design achieves improved isolation level and modest gain improvement.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2022)
Article
Chemistry, Multidisciplinary
Zhe Shen, Shijie Huang
Summary: This study demonstrates the generation and focusing of azimuthally polarized vortex beams using a single-layer all-dielectric metalens based on Pancharatnam-Berry (PB). By adding phase or amplitude modulation, optical needles with different depths of focus and sizes can be achieved. The results suggest potential applications of this technique in super-resolution imaging, photolithography, and particle trapping.
Review
Chemistry, Multidisciplinary
Haoran Ren, Stefan A. Maier
Summary: Twisted light, a helical spatial mode carrying orbital angular momentum, has great potential in optical and quantum information applications. However, current experiments are hindered by bulky, expensive, and slow-response optical elements. Nanophotonics offers a solution by providing compact and multifunctional devices for generating and detecting twisted light modes.
ADVANCED MATERIALS
(2023)
Article
Multidisciplinary Sciences
Zi-Lan Deng, Tan Shi, Alex Krasnok, Xiangping Li, Andrea Alu
Summary: Experimental demonstration shows that electromagnetic skyrmions based on magnetic localized spoof plasmons exhibit high topological robustness, paving the way for the development of flexible sensors, wearable electronics, and ultra-compact antennas. These skyrmions maintain stability on materials of different shapes, demonstrating flexible texture characteristics.
NATURE COMMUNICATIONS
(2022)
Review
Chemistry, Multidisciplinary
Emiliano Cortes, Fedja J. Wendisch, Luca Sortino, Andrea Mancini, Simone Ezendam, Seryio Saris, Leonardo de S. Menezes, Andreas Tittl, Haoran Ren, Stefan A. Maier
Summary: This review outlines the impact, opportunities, applications, and challenges of optical metasurfaces in converting the energy of incoming photons into frequency-shifted photons, phonons, and energetic charge carriers.
Article
Multidisciplinary Sciences
Haoran Ren, Jaehyuck Jang, Chenhao Li, Andreas Aigner, Malte Plidschun, Jisoo Kim, Junsuk Rho, Markus A. Schmidt, Stefan A. Maier
Summary: The authors have successfully fabricated a 3D achromatic diffractive metalens on the end face of a single-mode fiber, capable of achieving achromatic and polarization-insensitive focusing. This technology has potential applications in various fields, including endoscopic imaging, laser treatment, deep tissue imaging, and fiber-optic communications.
NATURE COMMUNICATIONS
(2022)
Article
Optics
Fei Xie, Shichao Song, Lili Liang, Xiangping Li, Yaoyu Cao
Summary: By employing a dual-beam STED lithography technique, this study overcomes the adjacent-exposure limit and achieves a super-resolved nanodots pixel pitch of 96 nm, offering great potential for future nanoimprinting and high-density data storage.
Article
Chemistry, Multidisciplinary
Jian Lei, Minghui Wang, Jin Wu, Hui Duan, Kun Zhang, Sicong Wang, Yaoyu Cao, Xiangping Li, Fei Qin
Summary: Supercritical lens with elliptical shape configuration is proposed and demonstrated to create a sub-diffraction transverse optical needle, which offers a uniform sub-diffractive focal spot with improved uniformity and condensed field intensity. The high aspect ratio of the optical needle enables potential applications in line-scanning microscopy for video-rate label-free super-resolution imaging, as well as advancements in laser manufacturing and optical manipulation.
Article
Optics
Chenhui Li, Xu Ouyang, Jialin Sun, Yaoyu Cao, Yi Xu, Yuri Kivshar, Xiangping Li
Summary: Achieving directional control of optical antennas is important for flexible interconnects between free-space optics and on-chip photonic circuitry. This study suggests and demonstrates a new concept of tunable transverse scattering of light from dielectric nanodimer antennas based on selective excitation of specific electromagnetic multipoles with simultaneous suppression of forward and backward scatterings. Importantly, it reveals the active steering of transverse scattering direction from nanodimers by varying the vectorial properties of generalized cylindrical beams.
LASER & PHOTONICS REVIEWS
(2023)
Article
Optics
Milad Nonahal, Chi Li, Haoran Ren, Lesley Spencer, Mehran Kianinia, Milos Toth, Igor Aharonovich
Summary: Integrated quantum photonics (IQP) offers a practical and scalable approach to quantum computation, communications, and information processing. However, the limited range of materials for monolithic platforms has been a challenge. This study demonstrates the fabrication of IQP components from hexagonal boron nitride (hBN), including waveguides, microdisks, and photonic crystal cavities. The engineered circuitry using single-crystal hBN shows the potential of hBN for scalable integrated quantum technologies.
LASER & PHOTONICS REVIEWS
(2023)
Article
Optics
Jincheng Ni, Shengyun Ji, Zhenyu Wang, Shunli Liu, Yanlei Hu, Yang Chen, Jiawen Li, Xiangping Li, Jiaru Chu, Dong Wu, Cheng-Wei Qiu
Summary: Researchers report an optical control method for unidirectional emission of unpolarized luminescence assisted by photonic orbital angular momenta. The orientation of anti-Stokes shift PL emissions can be controlled by the helicity of incident vortex beams. The experimental directionality of unpolarized PL emission in the one-dimensional nanopillar lattice can reach 0.59, which is significantly stronger than that possible by a spin mechanism. These findings offer a new promising approach for tunable nanoscale optical control of emission.
Editorial Material
Optics
Chenhui Li, Sicong Wang, Xiangping Li
Summary: This passage discusses the theoretical design and experimental demonstration of scalar optical hopfions formed by nested equiphase lines in the shape of a toroidal vortex. These hopfions, which propagate as spatiotemporally structured pulses in space-time, may allow for the encoding and transfer of optical topological information in an additional (temporal) dimension.
LIGHT-SCIENCE & APPLICATIONS
(2023)
Article
Nanoscience & Nanotechnology
Xu Ouyang, Chenhui Li, Yaoyu Cao, Yi Xu, Xiangping Li
Summary: The enhanced artificial chiroptical response of metamaterials compared to natural counterparts is achieved through the use of plasmonic nanoaggregates with a disordered coupling effect. This spontaneous chiroptical response is sensitive to the handedness of light and leads to circular dichroism in linear absorption and two-photon fluorescence. The localized spontaneous chirality is experimentally demonstrated by nanoscale multiplexing watermarks in polychromatic beams.
Article
Optics
Meng Li, Yan Huang, Lipeng Sun, Zhaoqiang Zheng, Churong Ma, Xiangping Li, Bai-Ou Guan, Kai Chen
Summary: This paper presents a cost-effective nanofabrication method derived from conventional colloidal lithography for producing optical nanoantennas. The fabricated gold nanodisks can be combined with zeolitic imidazolate framework-8 to achieve highly sensitive detection of volatile organic compounds. This nanofabrication method has the potential to be implemented in a variety of plasmonic sensors.
Article
Optics
Konstantin Y. Bliokh, Ebrahim Karimi, Miles J. Padgett, Miguel A. Alonso, Mark R. Dennis, Angela Dudley, Andrew Forbes, Sina Zahedpour, Scott W. Hancock, Howard M. Milchberg, Stefan Rotter, Franco Nori, Sahin K. Ozdemir, Nicholas Bender, Hui Cao, Paul B. Corkum, Carlos Hernandez-Garcia, Haoran Ren, Yuri Kivshar, Mario G. Silveirinha, Nader Engheta, Arno Rauschenbeutel, Philipp Schneeweiss, Juergen Volz, Daniel Leykam, Daria A. Smirnova, Kexiu Rong, Bo Wang, Erez Hasman, Michela F. Picardi, Anatoly Zayats, Francisco J. Rodriguez-Fortuno, Chenwen Yang, Jie Ren, Alexander B. Khanikaev, Andrea Alu, Etienne Brasselet, Michael Shats, Jo Verbeeck, Peter Schattschneider, Dusan Sarenac, David G. Cory, Dmitry A. Pushin, Michael Birk, Alexey Gorlach, Ido Kaminer, Filippo Cardano, Lorenzo Marrucci, Mario Krenn, Florian Marquardt
Summary: Structured waves are found in all areas of wave physics, both classical and quantum, where the wavefields are inhomogeneous and cannot be approximated by a single plane wave. These complex wavefields with inhomogeneities are crucial in various fields such as nanooptics, photonics, quantum matter waves, acoustics, water waves, etc. This Roadmap surveys the role of structured waves in wave physics, providing background, current research, and anticipating future developments.
Article
Optics
Zhihao Zeng, Xiangping Li, Haiwei Wang, Changsheng Xie
Summary: We developed a contamination-free laser printing approach for in situ patterning of fullerene with nanoscale resolution and high purity, using optical trapping force and shaping higher-order Laguerre-Gaussian beams. This method enables the formation of densely packed fullerene nanostructures with enhanced fluorescence emission and surface roughness. It also allows versatile patterning from dots to concentric rings. These results provide a new route for programmable and high-quality patterning of fullerene optoelectronic devices.
Article
Multidisciplinary Sciences
Yu-Lung Tang, Te-Hsin Yen, Kentaro Nishida, Chien-Hsuan Li, Yu-Chieh Chen, Tianyue Zhang, Chi-Kang Pai, Kuo-Ping Chen, Xiangping Li, Junichi Takahara, Shi-Wei Chu
Summary: This study demonstrates that Gaussian beam displacement can excite higher-order multipolar modes in silicon nanostructures, leading to maximal linear and nonlinear scattering efficiency when the focus is misaligned. This finding extends the understanding of light scattering theory and provides new possibilities for manipulating Mie resonances.
NATURE COMMUNICATIONS
(2023)
