Article
Chemistry, Multidisciplinary
Jincheng Ni, Shunli Liu, Guangwei Hu, Yanlei Hu, Zhaoxin Lao, Jiawen Li, Qing Zhang, Dong Wu, Shaohua Dong, Jiaru Chu, Cheng-Wei Qiu
Summary: The research demonstrates a novel chiroptical phenomenon by utilizing the orbital angular momentum of light to generate strong helical dichroism in single chiral nanostructures, enabling effective differentiation of the chirality of nanostructures.
Article
Optics
Jean-Luc Begin, Ashish Jain, Andrew Parks, Felix Hufnagel, Paul Corkum, Ebrahim Karimi, Thomas Brabec, Ravi Bhardwaj
Summary: Chiral interactions are prevalent in nature, and the use of linearly polarized helical light beams as chiral reagents demonstrates efficient chiral sensitivity. Nonlinear absorption of helical light beams offers a new chiroptical detection scheme for both chiral and achiral molecules in liquid phase.
Article
Multidisciplinary Sciences
Dusan Sarenac, Melissa E. Henderson, Huseyin Ekinci, Charles W. Clark, David G. Cory, Lisa DeBeer-Schmitt, Michael G. Huber, Connor Kapahi, Dmitry A. Pushin
Summary: Methods for preparing and analyzing structured waves of light, electrons, and atoms are advancing rapidly. However, neutron science has not been able to fully integrate these techniques. This study demonstrates practical methods for achieving neutron helical wave-fronts using existing technologies and discusses potential applications and extensions.
Article
Optics
Jeremy R. Rouxel, Benedikt Roesner, Dmitry Karpov, Camila Bacellar, Giulia F. Mancini, Francesco Zinna, Dominik Kinschel, Oliviero Cannelli, Malte Oppermann, Cris Svetina, Ana Diaz, Jerome Lacour, Christian David, Majed Chergui
Summary: Chirality, a structural property of molecules, has significant implications in various fields. A new approach to probe molecular chirality using helical dichroism has been demonstrated on a disordered sample for the first time. By using hard X-rays with spiral Fresnel zone plates, researchers have successfully induced orbital angular momentum (OAM) and obtained helical dichroism spectra of a disordered powder sample, opening up new possibilities for studying the interaction between molecular chirality and OAM of light.
Article
Chemistry, Physical
Ashish Jain, Jean-Luc Begin, Ravi Bhardwaj
Summary: A novel chiroptical sensing technique using the helical phase of structured light as a chiral reagent was introduced. This technique can differentiate enantiopure chiral liquids by their differential absorbance of helical light, which is significantly higher compared to conventional linear techniques. The origin of the helicity dependent absorption is explained in terms of induced multipole moments in nonlinear light-matter interaction, opening up possibilities for using helical light as a primary chiral reagent in nonlinear spectroscopic techniques.
JOURNAL OF CHEMICAL PHYSICS
(2023)
Article
Physics, Multidisciplinary
David R. Blackman, Yin Shi, Sallee R. Klein, Mihail Cernaianu, Domenico Doria, Petru Ghenuche, Alexey Arefiev
Summary: This study investigates an alternative electron injection method using a low-density foam target and a helical laser pulse. Three-dimensional simulations demonstrate that this method can generate a high-energy, short acceleration distance, and low-divergence electron beam.
COMMUNICATIONS PHYSICS
(2022)
Article
Physics, Multidisciplinary
Ling -Jun Kong, Yifan Sun, Furong Zhang, Jingfeng Zhang, Xiangdong Zhang
Summary: As an important imaging technique, holography has been realized with different physical dimensions of light, including polarization, wavelength, and time. Recently, quantum holography has been demonstrated with polarization entangled state, showing advantages of high robustness and enhanced spatial resolution. However, the capacity of quantum holography is limited due to the two-dimensional degree of freedom of polarization. In this study, we propose a method to achieve high-dimensional quantum holography using high-dimensional orbital angular momentum (OAM) entanglement. Proof-of-principle experiments with four- and six-dimensional OAM entangled states validate the feasibility of our idea and demonstrate high robustness to classical noise. Furthermore,a high-dimensional quantum holography can greatly improve the security level of holographic imaging encryption system.
PHYSICAL REVIEW LETTERS
(2023)
Article
Optics
Zhibing Liu, Shecheng Gao, Zhaoyu Lai, Yuru Li, Zhaohuan Ao, Jinpei Li, Jiajing Tu, Yanxiong Wu, Weiping Liu, Zhaohui Li
Summary: By utilizing an optical diffraction neural network, a low-crosstalk OAM de/multiplexer operating in the full C+L band is developed. The device supports 16 OAM modes with low insertion loss and intermode crosstalk. This research has great application prospects for mode de/multiplexers and mode division multiplexing communication systems.
LASER & PHOTONICS REVIEWS
(2023)
Article
Materials Science, Multidisciplinary
Haoyang Ren, Yingning Wang, Wenpu Geng, Wenqian Zhao, Runzhou Zhang, Zhongqi Pan, Yang Yue
Summary: This paper presents a design of a multi-ring air-core trench-assisted fiber that supports transmission over the entire C + L band with low inter-ring crosstalk. The effects of the ring spacing, wavelength range, and doping concentration on the crosstalk suppression are systematically investigated. The complexity of the MIMO processing system is greatly reduced with a fewer-optical-core structure while keeping low inter-ring crosstalk.
RESULTS IN PHYSICS
(2023)
Article
Nanoscience & Nanotechnology
Yang Cao, Shunli Liu, Yuan Tao, Xinghao Wang, Jincheng Ni, Chaowei Wang, Xinyuan Zheng, Jiawen Li, Yanlei Hu, Dong Wu, Jiaru Chu
Summary: Chiral oligomers in optics are photonic metamaterials inspired by the concept of chiral centers in chemistry. Recent research has focused on the photonic spin angular momentum (SAM)-dependent chiroptical response, but the orbital angular momentum (OAM)-dominated chiroptical response of chiral oligomers is still unknown. In this study, we demonstrate that individual three-dimensional (3D) chiral tetramers can exhibit a significant response to the photonic OAM, and we also reveal the origin of this response. Furthermore, we show that 3D oligomers with tailored geometric parameters can be fabricated using femtosecond direct laser writing for varying responses. This research has implications for chiroptical spectroscopy and photonic angular momentum engineering.
Article
Optics
Juan-Feng Zhu, Chao-Hai Du, Zi-Wen Zhang, Pun-Kun Liu, Liang Zhang, Adrian W. Cross
Summary: This work introduces a wideband tunable multi-mode vortex beam generator based on Smith-Purcell radiation from a helical grating, which offers flexibility in controlling frequency, topological charge, and radiation direction. The proposed principle can be scaled to the terahertz frequency band, advancing the application of vortex beams in millimeter wave-terahertz communication systems.
Article
Chemistry, Multidisciplinary
Nianwei Dai, Shunli Liu, Zhongguo Ren, Yang Cao, Jincheng Ni, Dawei Wang, Liang Yang, Yanlei Hu, Jiawen Li, Jiaru Chu, Dong Wu
Summary: Artificial chiral micronanostructures with strong chiroptical signals are significant for next generation photonic devices and chiroptical spectroscopy techniques. However, most of the existing chiral metallic metamaterials generate chiroptical signals dependent on photonic spin angular momentum, while those dependent on photonic orbital angular momentum remain unseen. In this work, copper microhelices with opposite handedness are fabricated using additive manufacturing and their orbital angular momentum-dominated chiroptical response is examined. They exhibit helical dichroism and hold promise in advanced chiroptical spectroscopy and photonic OAM engineering.
Article
Optics
Kayn A. Forbes
Summary: Optical helicity is a fundamental property of light, similar to energy and momentum. In the conventional description of light as plane waves, the optical helicity is proportional to the degree of circular polarization. However, this study shows that tightly focused optical vortices can generate nonparaxial fields with a contribution to the optical helicity density that is independent of the polarization state of the source paraxial field. This finding challenges the previous understanding and suggests that unpolarized light can exhibit optical activity and chiral light-matter interactions.
Article
Optics
Sheng Yu, Kai Zhang, Yanbo Lou, Shengshuai Liu, Jietai Jing
Summary: In this article, the experimental generation of entanglement with flexible reconfigurable topological charges in six continuous-variable orbital angular momentum modes is achieved. The scheme allows for the redistribution of entangled modes among quantum channels, providing a flexible platform for constructing reconfigurable continuous-variable quantum communication networks.
LASER & PHOTONICS REVIEWS
(2023)
Article
Optics
Han Cao, Yize Liang, Lulu Wang, Zhengsen Ruan, Hongya Wang, Jinwei Zeng, Jian Wang
Summary: In this paper, a quasi-wavelet conformal mapping method is proposed and demonstrated for scalable and efficient dense OAM demultiplexing in optical communications. The method divides the OAM mode into concentric rings and maps them to tilted plane waves, reducing demultiplexing crosstalk. It is compared with other methods and shown to achieve efficient demultiplexing for 15 OAM modes with low crosstalk. The method is also applied to data-carrying OAM-MDM communications with favorable performance.
LASER & PHOTONICS REVIEWS
(2023)
Article
Plant Sciences
Yuanyuan Wang, Guang Chen, Fanrong Zeng, Zhigang Han, Cheng-Wei Qiu, Meng Zeng, Zujun Yang, Fei Xu, Dezhi Wu, Fenglin Deng, Shengchun Xu, Caspar Chater, Abraham Korol, Sergey Shabala, Feibo Wu, Peter Franks, Eviatar Nevo, Zhong-Hua Chen
Summary: This study assessed the natural variation of drought tolerance in wild cereal crops and found that different growth conditions have shaped the stomatal and photosynthetic traits of these crops differently. The research identified specific genes correlated with these differences and verified their role in drought tolerance. These findings provide valuable genetic information for breeding resilient wheat and barley in the face of a changing global climate.
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
Optics
Tianfeng Zhang, Jie Lv, Wei Li, Linghao Cheng, Hao Liang, Bai-Ou Guan
Summary: In this paper, a novel scheme is proposed to combat polarization fading in cp-OTDR. It utilizes delayed polarization multiplexing and aperiodic autocorrelation to achieve a simple transceiver structure. The proposed scheme directly obtains the Jones matrix of the sensing fiber, providing polarization independent phase variation due to vibration. Experimental results on a WFBG array demonstrated a high crosstalk rejection ratio and dynamic range.
Review
Chemistry, Multidisciplinary
Ahmed Elbanna, Hao Jiang, Qundong Fu, Juan-Feng Zhu, Yuanda Liu, Meng Zhao, Dongjue Liu, Samuel Lai, Xian Wei Chua, Jisheng Pan, Ze Xiang Shen, Lin Wu, Zheng Liu, Cheng-Wei Qiu, Jinghua Teng
Summary: In recent years, two-dimensional (2D) materials, such as graphene, transition metal dichalcogenides, black phosphorus, MXenes, and semimetals, have received extensive attention due to their intriguing properties, underlying physics, and potential for applications. The diverse traits and possibilities offered by 2D materials and their heterostructures provide great opportunities for photonics and plasmonic devices.
Article
Optics
Jie Ou, Jianping Li, Weiqin Zheng, Yuwen Qin, Ning Lin, Ou Xu, Quandong Huang, Di Peng, Meng Xiang, Yi Xu, Songnian Fu
Summary: In this work, a weakly coupled few-mode hollow-core U-shaped tube nested antiresonant fiber (FM-UARF) is proposed for large-capacity mode-division multiplexing transmission without multiple-in-multiple-out (MIMO) digital signal processing. The six-tube FM-UARF is shown to be a suitable option for two-mode and three-mode transmission with improved performance. Parameter optimization allows for a weakly coupled condition with an effective refractive index difference (Aneff) larger than 5 x 10-4. The proposed FM-UARF has potential for MIMO-less large-capacity data transmission.
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS
(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
Nanoscience & Nanotechnology
Guang-Xin Liu, Jing-Feng Liu, Wen-Jie Zhou, Ling-Yan Li, Chun-Lian You, Cheng-Wei Qiu, Lin Wu
Summary: Recent advances in inverse-design approaches have reshaped the landscape of nanophotonic structures, particularly in the field of quantum nanophotonics where quantum emitters couple with nanophotonic structures. This work introduces a generalized inverse-design framework using the local-density-of-states (LDOS) as a bridge to connect nanophotonic structures and quantum functional characteristics. Deep learning is applied to design nanophotonic structures for complex problems without a direct link between structures and functional characteristics.
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
Nanoscience & Nanotechnology
Wei Cui, Aoxiang Xiao, Jiaying Zheng, Pengwei Chen, Jiaxuan Liang, Yunyun Huang, Bai-Ou Guan
Summary: This work develops a facile and effective synthetic strategy for monodisperse silver nanorods with tunable plasmon resonance in the near-infrared region. The strategy includes in situ monitoring via an optical microfiber and surfactant-assisted purification. This study provides a flexible and alternative approach for nonexpert researchers and may offer a solution to the reproducibility problem faced by nanomaterial synthesis.
ACS APPLIED NANO MATERIALS
(2023)
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
Multidisciplinary Sciences
Liujun Xu, Jinrong Liu, Guoqiang Xu, Jiping Huang, Cheng- Wei Qiu
Summary: In an active thermal lattice composed of a stationary solid matrix and rotating solid particles, giant thermal chirality is generated by breaking the Onsager reciprocity relation through rotation, which is about two orders of magnitude larger than ever reported. Anisotropic thermal chirality is achieved by breaking the rotation invariance of the active lattice, bringing effective thermal conductivity to a region unreachable by the thermal Hall effect.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2023)
Article
Optics
Tao He, Zhanyi Zhang, Jingyuan Zhu, Yuzhi Shi, Zhipeng Li, Heng Wei, Zeyong Wei, Yong Li, Zhanshan Wang, Cheng-Wei Qiu, Xinbin Cheng
Summary: This paper reports a universal paradigm for achieving high-efficiency exceptional points (EPs) in the visible range by leveraging interlayer loss to control the interplay between a lossy structure and scattering lightwaves. A bilayer framework is demonstrated to efficiently reflect and absorb incident light, opening up possibilities for nanoscale devices and EP physics.
LIGHT-SCIENCE & APPLICATIONS
(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)