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2024

Record 445 of

Title:Enantioselective Optical Trapping of Multiple Pairs of Enantiomers by Focused Hybrid Polarized Beams

Author Full Names:Zhang, Yanan(1,2); Li, Manman(1); Yan, Shaohui(1); Zhou, Yuan(1,2); Gao, Wenyu(1,2); Niu, Ruixin(1,2); Xu, Xiaohao(1); Yao, Baoli(1,2)
Source Title:Small
Language:English
Document Type:Journal article (JA)
Abstract:Enantiomers (opposite chiral molecules) usually exhibit different effects when interacting with chiral agents, thus the identification and separation of enantiomers are of importance in pharmaceuticals and agrochemicals. Here an optical approach is proposed to enantioselective trapping of multiple pairs of enantiomers by a focused hybrid polarized beam. Numerical results indicate that such a focused beam shows multiple local optical chirality of opposite signs in the focal plane, and can trap the corresponding enantiomers near the extreme value of optical chirality density according to the handedness of enantiomers. The number and positions of trapped enantiomers can be changed by altering the value and sign of polarization orders of hybrid polarized beams, respectively. The key to realizing enantioselective optical trapping of enantiomers is that the chiral optical force exerted on enantiomers in this focused field is stronger than the achiral optical force. The results provide insight into the optical identification and separation of multiple pairs of enantiomers and will find applications in chiral detection and sensing. ? 2024 Wiley-VCH GmbH.
Affiliations:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China
Publication Year:2024
Volume:20
Issue:25
Article Number:2309395
DOI Link:10.1002/smll.202309395
數(shù)據(jù)庫(kù)ID（收錄號(hào)）:20240215352673
Record 446 of

Title:A review of liquid metal-based flexible electronics achieved by ultrafast lasers

Author Full Names:Zhang, Jingzhou(1); Yang, Qing(2); Zhang, Chengjun(2); Li, Haoyu(3); Zhao, Hualong(1); Chen, Feng(3)
Source Title:Applied Materials Today
Language:English
Document Type:Journal article (JA)
Abstract:Gallium and its alloys are room temperature liquid metals, which exhibit both the fluidity of liquid and the conductivity of metal. Recently, Gallium-based liquid metals have aroused great attention and played a crucial role in flexible sensors, self-healing circuits, stretchable electrodes, and soft robots. Within these fields, developing advanced printing technology was the key to obtain liquid metal-based electronic devices. Ultrafast laser microfabrication has the characteristics of high precision and low thermal effect. This technology has been successfully applied to prepare various liquid metal patterns and contributed for the development of flexible electronics. In this review, the recent advances of gallium-based flexible electronics by ultrafast lasers are systematically summarized. We mainly focus on the physical and chemical properties of liquid metals, laser-induced liquid metal printing methods, and their typical applications in flexible electronics. Finally, the challenges and personal perspectives of liquid metal-based flexible electronics are briefly discussed. ? 2024 Elsevier Ltd
Affiliations:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an; 710049, China; (3) State Key Laboratory for Manufacturing System Engineering and Shaanxi Key Laboratory of Photonics Technology for Information, School of Electronic Science and Engineering, Xi'an Jiaotong University, Xi'an; 710049, China
Publication Year:2024
Volume:41
Article Number:102505
DOI Link:10.1016/j.apmt.2024.102505
數(shù)據(jù)庫(kù)ID（收錄號(hào)）:20244517339725
Record 447 of

Title:Metasurface-based broadband full Stokes polarimeter with optimized simulation design

Author Full Names:Zhao, Jiaqi(1,2); Li, Yingbo(1,2); Li, Siqi(1); Wang, Guoxi(1,2)
Source Title:Applied Physics Letters
Language:English
Document Type:Journal article (JA)
Abstract:A polarimeter, fundamental for characterizing the polarization state of light, is critical for advancing optical measurement techniques by delivering precise polarization information. A compact and portable polarimeter holds particular importance in applications like remote sensing and medical diagnosis. However, existing methods for developing a compact polarimeter are difficult to achieve full Stokes vector detection for broadband operation, and the noise immunity is also very weak. These defects significantly constrain the versatility of polarimeters across diverse application scenarios. Herein, a metadevice with dual-layer subwavelength grating structure for full Stokes vector detection has been proposed, capable of simultaneously achieving broadband detection and noise suppression. The intensity of the four elliptical polarization states of the incident light can be captured by four regions on this metadevice, enabling the computation of the full polarization state information via Mueller matrix inversion. Additionally, a set of optimized retardance at 0.73 π and orientation angles at 43°, 80°, 111°, and 146° is provided to effectively suppress the noise. The results indicate that the recovery error remains below 5% across the 450-650 nm spectral range, showcasing a 1.5-fold enhancement in noise suppression capability compared to conventional structures. ? 2024 Author(s).
Affiliations:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China
Publication Year:2024
Volume:125
Issue:12
Article Number:121701
DOI Link:10.1063/5.0223058
數(shù)據(jù)庫(kù)ID（收錄號(hào)）:20243917109416
Record 448 of

Title:A High-Power Lateral p-i-n Silicon-Germanium Photodiode

Author Full Names:Cheng, Chao(1,2); Xue, Jintao(1,2); Yu, Zhiyuan(1); Wu, Jinyi(1,2); Bao, Shenlei(1,2); Wang, Binhao(1,2)
Source Title:2024 Photonics and Electromagnetics Research Symposium, PIERS 2024 - Proceedings
Language:English
Document Type:Conference article (CA)
Conference Title:2024 Photonics and Electromagnetics Research Symposium, PIERS 2024
Conference Date:April 21, 2024 - April 25, 2024
Conference Location:Chengdu, China
Abstract:Silicon-germanium (Si-Ge) photodiodes are a crucial component in silicon photonic integrated circuits, responsible for detecting and converting optical signals into electrical signals. This paper introduces a laterally-coupled p-i-n Si-Ge photodiode with a silicon nitride (Si3N4) waveguide and a Si3N4 coating layer on germanium, enhancing responsivity at high optical power mode without compromising 3 dB opto-electrical (OE) bandwidth. The proposed photodiode exhibits a responsivity of 0.62 A/W and an OE bandwidth of 60 GHz at a reverse bias of 2 V and an input optical power of 6 mW. This study offers a new perspective on optimizing high-speed and high-power Si-Ge photodiodes. ? 2024 IEEE.
Affiliations:(1) Xi'an Institute of Optics and Precision Mechanics Chinese Academy of Sciences, State Key Laboratory of Transient Optics and Photonics, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China
Publication Year:2024
DOI Link:10.1109/PIERS62282.2024.10618558
數(shù)據(jù)庫(kù)ID（收錄號(hào)）:20243516940648
Record 449 of

Title:Tailoring the visible light band of Watt-level SCs pumped via picosecond pulse with different Raman extent

Author Full Names:Guo, Yashuai(1,2); Wang, Zhenguang(1); Hu, Xiaohong(1); Zhang, Ting(1,2); Zhang, Zhao(1,2); Zhang, Wei(1); Wang, Yishan(1)
Source Title:Laser Physics
Language:English
Document Type:Journal article (JA)
Abstract:We investigate the supercontinuum (SC) tailoring property by varying the transmission fiber length after the master oscillator power amplifier system. The conversion efficiency of the visible light band is effectively enhanced via tailoring the Raman extent of the injected 30 ps pulse into the nonlinear photonic crystal fiber (PCF). Experimentally, a 3.6 W all-fiber SC spanning from 414 nm to over 1750 nm (@20 dB) is accomplished by using a high duty cycle domestic PCF through precisely controlling the extent of Raman effect. The proposed method is instructive for the further realization of high power SC with an enhanced spectral intensity in the visible light band. ? 2024 Astro Ltd.
Affiliations:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China
Publication Year:2024
Volume:34
Issue:8
Article Number:085102
DOI Link:10.1088/1555-6611/ad552f
數(shù)據(jù)庫(kù)ID（收錄號(hào)）:20243817043261
Record 450 of

Title:Full-gray optical trapping by high-order multipole-resonant gradient forces in structured light

Author Full Names:Zhang, Yanan(1,2); Li, Manman(1); Zhou, Yuan(1,2); Gao, Wenyu(1,2); Xu, Xiaohao(1); Yan, Shaohui(1); Yao, Baoli(1,2)
Source Title:Physical Review A
Language:English
Document Type:Journal article (JA)
Abstract:The optical gradient force trap lies at the heart of optical tweezers, with applications in a wide spectrum of sciences. It is conventionally perceived that the trap is either bright or dark, capturing small particles towards the intensity maxima or minima. Here, we demonstrate that there may exist an intermediate trapping state, which we refer to as the full-gray optical trapping, to permit distinct equilibrium positions where the light intensity incident on each part of the particle is neither maximized nor minimized. The appearance of this third-type trap is attributed to the excitation of high-order multipole resonances, which strongly couples nonlocal intensity inhomogeneity to the gradient force, yielding a unique force-vector field that converges on the gray region. By expanding the classification of optical traps and generalizing the gradient force theory to arbitrary-order multipoles, our findings underscore the impact of Mie responses on optomechanics and will facilitate the development of nanoparticle cooling, patterning, and ultrasensitive sorting. ? 2024 American Physical Society.
Affiliations:(1) State Key Laboratory of Transient Optics and Photonics, Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China
Publication Year:2024
Volume:110
Issue:6
Article Number:063517
DOI Link:10.1103/PhysRevA.110.063517
數(shù)據(jù)庫(kù)ID（收錄號(hào)）:20245217600767
Record 451 of

Title:Three-dimensional Bose–Einstein gap solitons in optical lattices with fractional diffraction

Author Full Names:Chen, Zhiming(1,2); Liu, Xiuye(2); Xie, Hongqiang(1); Zeng, Jianhua(2,3,4)
Source Title:Chaos, Solitons and Fractals
Language:English
Document Type:Journal article (JA)
Abstract:Compared with low-dimensional solitons that are widely studied in various realizable nonlinear physical systems, the properties and dynamics of three-dimensional solitons and vortices have not been well disclosed yet. Using numerical simulations and theoretical analysis, we here address the existence, structural property, and dynamics of three-dimensional gap solitons and vortices (with topological charge s=1) of Bose–Einstein condensates moving by Lévy flights (characterized by fractional diffraction operators, Lévy index 1 ? 2024 Elsevier Ltd
Affiliations:(1) School of Science, East China University of Technology, Nanchang; 330013, China; (2) Center for Attosecond Science and Technology, State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics of Chinese Academy of Sciences, Xi'an; 710119, China; (3) University of Chinese Academy of Sciences, Beijing; 100049, China; (4) Collaborative lnnovation Center of Extreme Optics, Shanxi University, Shanxi, Taiyuan; 030006, China
Publication Year:2024
Volume:180
Article Number:114558
DOI Link:10.1016/j.chaos.2024.114558
數(shù)據(jù)庫(kù)ID（收錄號(hào)）:20240615519018
Record 452 of

Title:Single shot depth-resolved imaging through dynamic turbid media

Author Full Names:Li, Runze(1); Peng, Tong(1); Bai, Chen(1); Zhou, Meiling(1); Yu, Xianghua(1); Min, Junwei(1); Yang, Yanlong(1); Yao, Baoli(1,2)
Source Title:Applied Physics Letters
Language:English
Document Type:Journal article (JA)
Abstract:Guide star assisted wavefront shaping techniques have been exploited for focusing and imaging through turbid media by addressing a scatter inverse pattern. However, the turbid medium is required to be steady before finding the proper correction pattern, which limits applications in focusing and imaging through dynamic media, such as turbid water or blood. This study proposes a holography-based dual-polarization computational wavefront shaping method for imaging objects at variant depths behind dynamic turbid media. The orthogonal polarized output speckles of a point source (considered as a guide star) and an object are simultaneously recorded in holograms in separate regions of a single CCD camera. The holograms of the point source and object are subjected to the same distortion regardless of whether the media is static or dynamic. The hologram of the point source is used to determine the correction phase pattern for the distortion, while that of the object is used to record the complex scattered wavefront of the object. To reconstruct a clear object image, the wavefront of the scattered object is digitally corrected using the correction phase pattern and is then transferred to the image plane by calculating the transmission of the angular spectrum. Benefiting from the autofocusing feature of digital holography, objects at different depths can be recovered from a single shot hologram pair. The potential applications of the proposed method in diverse dynamic scattering media are demonstrated by imaging through a moving diffuser, turbid water, and pig blood with optical depth beyond 10. ? 2024 Author(s).
Affiliations:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China
Publication Year:2024
Volume:124
Issue:20
Article Number:201109
DOI Link:10.1063/5.0201501
數(shù)據(jù)庫(kù)ID（收錄號(hào)）:20242116151946
Record 453 of

Title:Femtosecond laser patterning with favorable outlines and bottom morphology based on a Dove prism system

Author Full Names:Li, Chenchen(1,2,3); Yao, Baoli(1,3); Li, Ming(1); Zhang, Chunmin(2); Xi, Dongxue(4); Wang, Fugang(4)
Source Title:Optics and Laser Technology
Language:English
Document Type:Journal article (JA)
Abstract:Patterning of metal thin films on glass-ceramics with high quality is very important, but challenging, in electronic devices manufacturing. Femtosecond laser direct writing system with a Dove prism offers possibility for high quality structuring of transparent conductors on glass-ceramics and other substrates. The laser pulses movement and overlap distributions of the Dove prism laser system were investigated. The threshold and energy distribution with defocus distances for the metal thin film and glass ceramic were measured and calculated. The experiments demonstrated a clean removal of the metal thin film with a bottom roughness of 0.06 μm and a removal depth of the substrate less than 0.5 μm. The impedance was measured to be higher than 416 GΩ under 1000 V static electricity in the atmospheric environment. ? 2024 Elsevier Ltd
Affiliations:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics of CAS, Xi'an; 710119, China; (2) School of Physics and the Institute of Space Optics, Xi'an Jiaotong University, Xi'an, China; (3) University of Chinese Academy of Sciences, Beijing; 100049, China; (4) Lanzhou Institute of Physics/CAST, Lanzhou; 730000, China
Publication Year:2024
Volume:179
Article Number:111136
DOI Link:10.1016/j.optlastec.2024.111136
數(shù)據(jù)庫(kù)ID（收錄號(hào)）:20242516293912
Record 454 of

Title:Highly sensitive CD40L protein discrimination via label-free fiber sensing technologies

Author Full Names:Hu, Mingxuan(1); Li, Xuying(4); Li, Yansong(2); Wang, Ruiduo(1,3); Kang, Tongyuan(1); Xu, Fuxing(5); Bai, Jintao(1); Jiang, Man(1); Zhu, Yaomin(2)
Source Title:Analyst
Language:English
Document Type:Journal article (JA)
Abstract:The recombinant Cluster of Differentiation 40 Ligand (CD40L) can be expressed in various cells and is closely related to various types of cancer. This association underscores the critical need for expedited and precise measurement of CD40L levels in clinical fluid specimens. A novel optical fiber biosensor has been devised, employing single-mode fibers that are sandwiched around a coreless fiber, with the diameter refined by etching with hydrogen fluoride. This innovative configuration allows for light transmission through the evanescent field, thereby enhancing the sensor's sensitivity to changes in the surrounding refractive index. Employing chemical binding techniques, CD40 was securely immobilized onto the fiber's surface, facilitating the detection of CD40L. The sensor exhibited a sensitivity of 1.126 nm (μg mL?1)?1 and a detection limit of 0.68 nM. Furthermore, the sensor's specificity for CD40L was validated using authentic clinical serum samples spiked with artificial analytes. In addition, the specificity of CD40L of the proposed sensor was proved using natural clinical serum samples with added artificial analyte, assisted by the ELISA method, and the results ideally conformed with the detection of standard samples. With the aid of the ELISA method, the outcomes were found to be in excellent agreement with those from standard sample detection. Consequently, the findings indicate that this sensor provides a specific, label-free, and highly sensitive method for CD40L detection, showcasing its significant potential for applications in molecular biology research. ? 2024 The Royal Society of Chemistry.
Affiliations:(1) State Key Laboratory of Photon-Technology in Western China Energy, International Collaborative Center on Photoelectric Technology and Nano Functional Materials, School of Physics, Institute of Photonics & Photon Technology, Northwest University, Xi'an; 710069, China; (2) Department of Anesthesiology, Center for Brain Science, The First Affiliated Hospital of Xi'an Jiaotong University, Shaanxi Province, Xi'an; 710061, China; (3) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Science, Xi'an; 710119, China; (4) Department of Anesthesiology, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Hainan, Haikou; 570100, China; (5) Department of Anesthesiology, Shanxi Province Cancer Hospital, Shanxi Hospital Affiliated to Cancer Hospital, Chinese Academy of Medical Sciences, Cancer Hospital Affiliated to Shanxi Medical University, Shanxi, Taiyuan; 030013, China
Publication Year:2024
Volume:149
Issue:20
Start Page:5014-5021
DOI Link:10.1039/d4an00867g
數(shù)據(jù)庫(kù)ID（收錄號(hào)）:20243617004110
Record 455 of

Title:Miniaturizable Phase-Sensitive Amplifier Based on Vector Dual-Pump Structure for Phase Regeneration of PDM Signal

Author Full Names:Jia, Shuaiwei(1,2); Xie, Zhuang(1,2); Shao, Wen(1,2); Han, Xiaotian(1,2); Su, Yulong(3); Meng, Jiacheng(1); Gao, Duorui(1); Wang, Wei(1); Xie, Xiaoping(1,2)
Source Title:IEEE Photonics Journal
Language:English
Document Type:Journal article (JA)
Abstract:Phase sensitive amplification is indispensable in promoting applications such as all-optical regenerators, quantum communications, all-optical analog-to-digital conversion, and long-distance communications. In this article, we proposed a vector dual-pump nondegenerate phase-sensitive amplification scheme based on ultra-silicon-rich nitride (Si7N3) waveguide, and theoretically verified its capability for all-optical regeneration of phase-encoded polarization-division multiplexing (PDM) signal without the need for complex polarization diversity structures. We achieved a gain extinction ratio (GER) of ～37.5 dB by using a 3-mm-long Si7N3 waveguide with a high nonlinear coefficient (～279 /W/m). Signal quality before and after regeneration is characterized by constellation diagram and error vector magnitude (EVM). The results show that the EVM of the degraded PDM differential phase-shift keying (DPSK) signals with two polarization states of 54% and 53.8%, can be improved to 13.6% and 13.6%, respectively, after regeneration, directly illustrating the remarkable phase noise suppression effect. The applicability of the scheme in PDM quadrature phase shift keying (QPSK) signals was further investigated. Similarly, the EVMs of the two polarization states of the deteriorated QPSK signals are optimized from 28.9% and 29.3% to 13.7% and 13.9%, respectively. The proposed scheme has promising applications in integrated all-optical processing systems and long-distance transmission of optical communications. ? 2009-2012 IEEE.
Affiliations:(1) Chinese Academy of Sciences, State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, School of Future Technology, Beijing; 100049, China; (3) Xidian University, Department of Optoelectronic Engineering, Xi'an; 710071, China
Publication Year:2024
Volume:16
Issue:1
Start Page:1-12
Article Number:7200112
DOI Link:10.1109/JPHOT.2023.3335923
數(shù)據(jù)庫(kù)ID（收錄號(hào)）:20240215344693
Record 456 of

Title:Optimization Algorithm for Flattop Beam Shaping Using Analytically Initial Phase

Author Full Names:Ding, Huimin(1); Mao, Jianyong(1); Chen, Wenqiang(1); Chen, Kai(2); Li, Xun(2); Tan, Yu(2); Li, Ming(2); Zhang, Lei(1)
Source Title:IEEE Photonics Technology Letters
Language:English
Document Type:Journal article (JA)
Abstract:Accurate control over light field distribution is of great importance to laser-based technologies. Here, an improved Gerchberg-Saxton (GS) algorithm is proposed to calculate the diffraction phase for flattop beam generation. In comparison with GS algorithm with a random phase as the initial phase of the iteration process, an analytical phase with a circular distribution is employed as the initial phase in the proposed algorithm. It is verified that the proposed algorithm can be used to generate flattop beams with improved uniformity and energy utilization ratio. Furthermore, both speckle noises and the ringing effect are effectively suppressed. We believe that the proposed diffraction phase optimization algorithm can be widely applied to high-quality beam shaping applications. ? 2024 IEEE. Personal use is permitted, but republication/redistribution requires IEEE permission.
Affiliations:(1) Xi'An Jiaotong University, Key Laboratory of Physical Electronics and Devices, Ministry of Education, Shaanxi Key Laboratory of Information Photonic Technique, School of Electronic Science and Engineering, Xi'an; 710049, China; (2) Xi'An Institute of Optics and Precision Mechanics (XIOPM), Chinese Academy of Sciences (CAS), State Key Laboratory of Transient Optics and Photonics, Xi'an; 710119, China
Publication Year:2024
Volume:36
Issue:21
Start Page:1285-1288
DOI Link:10.1109/LPT.2024.3426528
數(shù)據(jù)庫(kù)ID（收錄號(hào)）:20242916707375

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