Article
Optics
Linguo Xie, Yu He, Fubin Yang, Youquan Dan, Xinxing Zhou, Zhiyou Zhang
Summary: In this study, a phase compensation scheme is proposed and experimentally verified to achieve symmetric spin splitting in photonic spin Hall effect. The research reveals that the transverse shift of the total barycenter in the reflected field remains unchanged, whether or not phase compensation is applied.
Article
Nanoscience & Nanotechnology
Yougang Ke, Yongfeng Bian, Qiang Tang, Jibo Tian, Linzhou Zeng, Yu Chen, Xinxing Zhou
Summary: In this paper, the authors introduce a novel three-dimensional rotational photonic spin Hall effect (PSHE) and demonstrate how to control the rotation angle of the splitting patterns by adjusting the rotation angle of metasurfaces. They also show that the number of lobes in the splitting patterns can be independently controlled by introducing a dynamic phase. These findings enable active manipulation of spin photons in multiple dimensions and may have potential applications in optical microscopy, among other areas.
Article
Optics
Xiaohui Ling, Zan Zhang, Zhiping Dai, Zhiteng Wang, Hailu Luo, Lei Zhou
Summary: The physical origin of the photonic spin-Hall effect (PSHE) at optical interfaces is explored through studying the scatterings of circularly polarized beams obliquely incident on a series of junctions. The PSHE is determined by the interplay between the spin-redirection Berry (SRB) phase and the Pancharatnam-Berry (PB) phase. Shrinking the interfacial region can change the PSHE from SRB-dominated to PB-dominated.
LASER & PHOTONICS REVIEWS
(2023)
Article
Optics
Zefeng Chen, Hongwei Yang, Yihong Xiao, Jintao Pan, Yu Xia, Wenguo Zhu
Summary: By calculating the optical conductivities of twisted bilayer graphene and studying the light-matter interaction, we investigated the photonic spin Hall effect in this material. Placing the graphene on a substrate and launching a Gaussian beam near the Brewster angle enhanced the effect, revealing the spin splitting and Goos-Hanchen shifts associated with the surface conductivities. These findings deepen our understanding and indicate potential applications in characterizing bilayer graphene.
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION
(2021)
Article
Optics
Ting Lei, Changyu Zhou, Dawei Wang, Zhenwei Xie, Boyuan Cai, Shecheng Gao, Youpeng Xie, Luping Du, Zhaohui Li, Anatoly Zayats, Xiaocong Yuan
Summary: A chip-integrated nanodisk device is demonstrated for high-speed coherent optical signal detection based on spin-orbit coupling in silicon photonics circuitry. The device can extract phase information through polarization measurements, enabling coherent signal recovery at multiple wavelengths. This technology offers low-cost and small footprint advantages in high-speed coherent optical communication applications.
LASER & PHOTONICS REVIEWS
(2022)
Article
Physics, Multidisciplinary
Guangzhou Geng, Ruhao Pan, Wei Zhu, Junjie Li
Summary: This research demonstrates an asymmetrical spin-dependent beam splitter based on a single-layer dielectric metasurface. The metasurface breaks the conjugated characteristic of phase gradient and exhibits strong and controllable optical response. This method allows for flexible manipulation of spin photons and has potential for versatile functionalities in a compact space.
Article
Materials Science, Multidisciplinary
Zhihao Chen, Yu Chen, Yaodong Wu, Xinxing Zhou, Handong Sun, Tony Low, Hongsheng Chen, Xiao Lin
Summary: The photonic spin Hall effect, which is a manifestation of the spin-orbit interaction of light, can be measured through the transverse shift of photons with opposite spins. However, current methods to generate a large spin Hall effect have limitations, occurring only within a narrow angle range. This study proposes a universal scheme to achieve a wide-angle giant photonic spin Hall effect by utilizing the interface between free space and uniaxial epsilon-near-zero media.
Article
Optics
Lijuan Sheng, Xinxing Zhou, Yuhan Zhong, Xinyan Zhang, Yu Chen, Zhiyou Zhang, Hongsheng Chen, Xiao Lin
Summary: The photonic spin Hall effect allows for quantifying the interaction between light and spin-orbit, enabling applications in precise metrology. In this effect, the light beam experiences a spin-dependent transverse shift. It is found that, unlike the reflection/transmission process, the transverse shift for transmitted light is always zero and independent of polarization, regardless of the incident angle. This is due to the complete suppression of conversion between the spin and orbital angular momenta of light during the transmission process. Similar polarization-independent photonic spin Hall effect is observed for reflected light.
LASER & PHOTONICS REVIEWS
(2023)
Article
Optics
Monu Nath Baitha, Kyoungsik Kim
Summary: In this study, the polarization-independent photonic spin Hall effect (PSHE) is achieved by manipulating the spin-orbit coupling of light. The thickness of the thin film can be adjusted to control the device's characteristic size. This finding will contribute to the development of polarization-independent nano-photonics devices.
OPTICS AND LASER TECHNOLOGY
(2022)
Article
Physics, Applied
Shizhen Chen, Xinxing Zhou, Xiaohui Ling, Weixing Shu, Hailu Luo, Shuangchun Wen
Summary: The study demonstrates the use of photonic spin Hall effect in MoS2 to investigate atomic light-matter interaction, providing a reliable approach for fast and precise measurement of optical parameters, particularly useful for studying optical properties of transition metal dichalcogenides.
APPLIED PHYSICS LETTERS
(2021)
Article
Nanoscience & Nanotechnology
Chengkang Liang, Dongxue Liu, Rao Liu, Dongmei Deng, Guanghui Wang
Summary: The photonic spin Hall effect is proposed for precision metrology and quantum information processing. It is accompanied by the Goos-Hanchen and Imbert-Fedorov effects. By manipulating the chirality, transverse and longitudinal shifts can be achieved simultaneously.
Article
Optics
Xiang Zhou, Yiping Ding, Qinxin Yue, Shangling He, Yingji He, Dongmei Deng
Summary: The study investigates the tunable spin Hall effect of light on the surface of topological insulators under the influence of an external magnetic field, revealing that the shift of the effect is determined by the dissipative and reactive components of the insulators' optical conductivity. The shifts are insensitive to the magnetic field and Fermi energy at high frequencies but sensitive to them at low frequencies, with potential applications in determining these properties using the SHEL shifts.
OPTICS AND LASER TECHNOLOGY
(2022)
Article
Physics, Applied
Subrat Sahu, Triranjita Srivastava, Rajan Jha
Summary: The photonic spin Hall effect (PSHE) in the Plexcitonic system is analyzed in this paper, where the signature of Plexciton is studied by implanting an organic semiconductor layer over the plasmon active metal. The high sensitivity of the transverse shift to alterations in the environmental refractive indices makes it suitable for applications as a highly sensitive PSHE-based refractometer.
APPLIED PHYSICS LETTERS
(2023)
Article
Physics, Multidisciplinary
Wenguo Zhu, Huadan Zheng, Yongchun Zhong, Jianhui Yu, Zhe Chen
Summary: This research demonstrates a novel wave-vector-varying PB phase that naturally arises in transmission and reflection processes for paraxial beams with small incident angles. This new photonic spin Hall effect can address the contradiction between spin separation and energy efficiency in the conventional PSHE.
PHYSICAL REVIEW LETTERS
(2021)
Article
Nanoscience & Nanotechnology
Song Qi, Haixia Da
Summary: Bilayer graphene shows two discontinuities in the spectrum of spin shifts, which can be used to distinguish it from monolayer graphene. The magnitudes and positions of the peak and valley values in the spectrum can be controlled by tuning the Fermi energy of bilayer graphene. The enhanced spin shift in bilayer graphene using Laguerre-Gaussian beam has potential applications in precision measurements and refractive index sensors.
Article
Chemistry, Inorganic & Nuclear
Wenhao Liu, Ming-Hsien Lee, Ruixin Guo, Jiyong Yao
Summary: A noncentrosymmetric alkali metal borophosphate crystal material, KNBPO, has been obtained through spontaneous crystallization. It has a short UV cut-off edge, congruent melting characteristic, good thermal stability, and a moderate second harmonic generation response. The optical properties mainly originate from BO4 and PO4 units.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Yuqin Zhang, Shi He, Honghong Yao, Hao Zuo, Shuang Liu, Chao Yang, Guoying Feng
Summary: Previous studies have shown that the nano-crystallization process affects the luminescence properties of nanocrystals. This project explores the influence of nanocrystal size on the electrical and optical properties of Cr2+:ZnSe nanowires. A first-principles study of Cr2+:ZnSe nanowires with different sizes was conducted. It was found that the Cr2+ ion prefers to reside at the surface of ZnSe nanowires and as the nanocrystal size decreases, a significant short-wave-length shift in absorption was observed.
Review
Oncology
Xu Feng, Guo-Ying Feng, Jie Tao, Yu-Pei Ao, Xin-Hua Wu, Shi-Guai Qi, Zheng-Rong Shi
Summary: In this network meta-analysis, we found that postoperative adjuvant local therapies and molecular targeted therapies significantly improved overall survival (OS) and disease-free survival (DFS) in hepatocellular carcinoma (HCC) patients with a high risk of recurrence after radical resection. Specifically, postoperative adjuvant radiotherapy showed the best efficacy in terms of DFS, while molecular targeted therapy demonstrated the best efficacy in terms of OS.
JOURNAL OF CANCER RESEARCH AND CLINICAL ONCOLOGY
(2023)
Article
Optics
Qiongqiong Gu, Fangjie Wang, Yulei Huang, Hao Zhou, Guoliang Deng, Shouhuan Zhou
Summary: A dual-band tunable filter with a 10.5 nm narrowband based on guided-mode resonance grating is demonstrated, which can switch between two filtering working bands around 1200 and 1550 nm by controlling the TE and TM polarization. The Q factor as high as 146.7 at 1550 nm is achieved by optimizing the grating parameters. An asymmetrical line shape is obtained at TE polarization. Additionally, the angle-dependent guided-mode resonance (GMR) effect is well studied in the designed GMR grating filter, showing tunability and optical bistability based on the thermo-optic effect.
JOURNAL OF MODERN OPTICS
(2023)
Article
Materials Science, Textiles
Jeanne Tan, Li Shao, Ngan Yi Kitty Lam, Anne Toomey, Hui Haang Chan, Ching Lee, Guo Ying Feng
Summary: This paper presents the usability evaluations of an interactive woven textile system with gesture recognition capabilities. Results indicate that participants responded positively to the system in terms of its attractiveness, perspicuity, and stimulation, but were less positive about its efficiency.
JOURNAL OF THE TEXTILE INSTITUTE
(2023)
Article
Chemistry, Analytical
Shijie Zheng, Mengyu Ren, Xin Luo, Hangyu Zhang, Guoying Feng
Summary: An interferometric fiber-optic gyroscope (IFOG) demodulates a rotation signal via interferometric light intensity. This paper studied the effects of SLD power fluctuation on the performance of a gyro system and established a real-time power-sensing and -compensating system using a light-power feedback loop.
Article
Optics
Sikun Zhou, Junjie Yang, Sha Wang, Shutong Wang, Guoliang Deng, Shouhuan Zhou
Summary: In this study, antireflection microstructures (ARMs) were fabricated on ZnSe surfaces using femtosecond Bessel direct laser writing in burst mode. The morphology and transmittance performance of ARMs with different parameters were investigated. The results showed that tetragonally arranged ARMs fabricated by 500 nJ of single-pulse energy, the burst 3 mode, and a period of 3 μm exhibited the best transmittance performance.
Correction
Nanoscience & Nanotechnology
Boquan Qin, Shizhou Wu, Hongxian Dong, Shu Deng, Yunjie Liu, Wanli Zhang, Guoying Feng, Lei Lei, Huiqi Xie
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Optics
Shijie Zheng, Mengyu Ren, Xin Luo, Hangyu Zhang, Guoying Feng
Summary: In the interferometric fiber-optic gyroscope (IFOG), the stability of the light source is crucial to its performance. Fluctuations in the light source power (LSP) significantly compromise the gyroscope's bias stability. Simplifying the light source is important for miniaturization and cost reduction, but it leads to LSP fluctuations. Therefore, compensating for LSP fluctuations is important. This paper proposes a novel closed-loop control method to effectively reduce the impact of LSP fluctuations by about 95%.
JOURNAL OF RUSSIAN LASER RESEARCH
(2023)
Article
Chemistry, Analytical
Shijie Zheng, Mengyu Ren, Xin Luo, Hangyu Zhang, Guoying Feng
Summary: The performance of an interferometric fiber-optic gyroscope is affected by fluctuations in the light source power. Two compensation methods, double period modulation (DPM) and triple period modulation (TPM), are introduced to compensate for the gyroscope error. DPM has better performance but higher circuit requirements, while TPM is more suitable for small fiber-coil applications. Experimental results show that both DPM and TPM can achieve significant improvement in bias stability.
Correction
Chemistry, Analytical
Hongru Li, Hao Wei, Jiangtao Liu, Guoliang Deng, Shouhuan Zhou, Wenwu Wang, Liang He, Peng Tian
Article
Materials Science, Multidisciplinary
Mengran Sun, Chunxiao Li, Jinlong Shi, Ming-Hsien Lee, Jiyong Yao
Summary: This study investigates the structural characteristics and nonlinear optical (NLO) properties of defect diamond-like (DL) MGa2Te4 (M = Zn, Cd) for the first time. The results show that MGa2Te4 (M = Zn, Cd) has moderate band gaps, strong second harmonic generation (SHG) intensities, and congruent-melting behavior. The lone-pair packets of Te ions in [GaTe4] units are found to be the main source of SHG responses. This work demonstrates the potential applications of these two defect DL tellurides in the mid- and far-infrared (MFIR) NLO field.
MATERIALS TODAY PHYSICS
(2023)
Article
Optics
Mochou Yang, Guoying Feng
Summary: Applying convolutional neural network to ghost imaging can improve the image quality of computational ghost imaging (CGI) and form network ghost imaging (netGI). Training set is generated by using images reconstructed by CGI and the original images, with the sampling rate of CGI as the sampling rate of netGI. Matching the sampling rate of netGI with that of CGI significantly improves the image quality, increasing PSNR by 109.7% and SSIM by 300% under low sampling rate gamma = 0.1. This method effectively solves the problem of reconstructing high-quality images under low sampling rate and has wide application prospects in low-dose detection, especially in biomedical detection.
JOURNAL OF RUSSIAN LASER RESEARCH
(2023)
Article
Chemistry, Inorganic & Nuclear
Wenhao Liu, Ming-Hsien Lee, Ruixin Guo, Jiyong Yao
Summary: Rare earth borates, including Rb7SrSc2B15O30 (I) and Rb7CaSc2B15O30 (II), have attracted attention as potential nonlinear optical materials due to their short UV cutoff edges and second-harmonic generation efficiency. The B5O10 group and ScO6 octahedron are speculated to contribute to their band gap and NLO characteristics. The discovery of I and II adds to the diversity of rare earth borates.
DALTON TRANSACTIONS
(2023)
Article
Engineering, Electrical & Electronic
Siao Cai, Ji Cui, Wei Li, Guoying Feng
Summary: This study proposes a flexible and efficient error correction algorithm based on machine learning, which can correct the system's nonlinear error without parameter calibration or prior system information. The algorithm consists of two stages: projector gamma estimation and phase error compensation. Experimental and simulation results show the effectiveness of this method in directly identifying the system's gamma value from the wrapped phase without complex calibration or prior information. The proposed algorithm is applicable to time-varying nonlinear systems.
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
(2023)
