Article
Optics
Wenhao Xu, Xiaohui Ling, Dingyu Xu, Shizhen Chen, Shuangchun Wen, Hailu Luo
Summary: A study reported a method to enhance the transmission efficiency of differential operations by introducing anisotropy, and discussed the mechanism of this optical calculation process. It was found that the conversion efficiency of differential operations depends on spin-orbit interactions, which can be strengthened by the proposed scheme, significantly improving transmission efficiency.
Article
Chemistry, Multidisciplinary
Khant Minn, Aleksei Anopchenko, Ching-Wen Chang, Ragini Mishra, Jinmin Kim, Zhenrong Zhang, Yu-Jung Lu, Shangjr Gwo, Ho Wai Howard Lee
Summary: Room-temperature photoluminescence enhancement of molybdenum disulfide monolayers on epitaxial titanium nitride thin films is observed, with stronger enhancement as titanium nitride becomes more metallic, especially at excitation wavelengths equal to or longer than the titanium nitride's epsilon-near-zero (ENZ) wavelength. The enhancement is attributed to increased excitation field in molybdenum disulfide at titanium nitride's ENZ wavelength and interference effects for thick spacers that separate molybdenum disulfide flakes from titanium nitride films in the metallic regime.
Article
Materials Science, Multidisciplinary
Shu-qi Wu, Hao-yuan Song, Yu-bo Li, Shu-fang Fu, Xuan-zhang Wang
Summary: We present a tunable spin Hall effect of light (SHEL) by introducing a monolayer of graphene on hBN, and discuss the influence of different factors on this effect. These findings may lead to potential applications in nano-optical devices.
RESULTS IN PHYSICS
(2022)
Article
Chemistry, Physical
Ryan Bower, Matthew P. Wells, Freya Johnson, Rebecca Kilmurray, Brock Doiron, Eleonora Cali, Giuseppe Mallia, Bin Zou, Andrei P. Mihai, Nicholas M. Harrison, Sarah Fearn, Rupert Oulton, Neil McN. Alford, Lesley F. Cohen, Peter K. Petrov
Summary: This study investigates the optical response and electrical properties of reactively sputtered niobium oxynitride thin films through experimental and computational simulations. The experimental results show that these films have screened plasma wavelengths tunable over a range of 90 nm, and exhibit a double epsilon-near-zero behavior. This behavior is attributed to the incorporation of oxygen into the films during deposition.
APPLIED SURFACE SCIENCE
(2021)
Article
Optics
Minkyung Kim, Dasol Lee, Hyukjoon Cho, Bumki Min, Junsuk Rho
Summary: This study proposes a method to achieve a large SHEL and near-unity efficiency in the microwave spectrum using anisotropic impedance mismatching, and experimentally confirms spin-dependent splitting by measuring transmission coefficients and the spatial profile of Stokes parameters.
LASER & PHOTONICS REVIEWS
(2021)
Review
Chemistry, Multidisciplinary
Michael S. Lodge, Shengyuan A. Yang, Shantanu Mukherjee, Bent Weber
Summary: Atomically thin topological materials, such as the quantum spin Hall insulator, show great potential for applications in quantum computing and electronic devices, with large tunable bulk bandgaps and gapless edge states.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Physical
Guang-Yi Jia, Rui-Xia Zhang, Ting Tang, Qian Li, Ali Ebrahimian, Zahra Torbatian, Reza Asgari
Summary: The spin Hall effect of light in topological semimetals, particularly with alpha-Li3N-type crystals, has been investigated. The study shows intense peaks and dips in the spin Hall shifts spectra, which redshift with increasing incident angle or permittivity of the exit medium. Additionally, lattice strain can transform the semimetal type, affecting the peaks and dips shifts.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Optics
Long Wen, Xianghong Nan, Jiaxiang Li, David R. S. Cumming, Xin Hu, Qin Chen
Summary: In this paper, a dual-ENZ mode scheme for spatial light modulation using TCOs/dielectric/silicon nanotrench configuration is proposed and demonstrated for the first time. The SIS junction can establish two distinct ENZ layers arising from the induced charge-carriers of opposite polarities adjacent to both faces of the dielectric layer. The non-resonant and low-loss deep nanotrench framework allows efficient modulation of free space light via interaction of dual ENZ modes in an elongated manner. Theoretical and experimental studies reveal that the dual ENZ mode scheme in the SIS configuration leverages large modulation depth, extended spectral bandwidth, and high speed switching, holding great promise for achieving electrically addressed spatial light modulation in near- to mid-infrared regions.
OPTO-ELECTRONIC ADVANCES
(2022)
Article
Optics
Justus Bohn, Ting Shan Luk, Simon Horsley, Euan Hendry
Summary: When light travels through a medium with changing refractive index over time, it can lead to a frequency shift. Recent studies have shown significant frequency shifting effects in transparent conductive oxides, likely due to temporal changes in the refractive index. Experimental results indicate that the frequency shift in certain materials originates not only from bulk response, but also from temporal changes in spatial boundary conditions.
Article
Multidisciplinary Sciences
Liang Peng, Hang Ren, Ya-Chao Liu, Tian-Wei Lan, Kui-Wen Xu, De-Xin Ye, Hong-Bo Sun, Su Xu, Hong-Sheng Chen, Shuang Zhang
Summary: Researchers have discovered a transversely spinning light-induced spin Hall effect on the interface of a metamaterial, leading to beam shift. This unconventional effect, with geometrodynamical nature, can be controlled through the orientation of the photons' spin and provides a previously unexplored mechanism for manipulating light-matter interactions at interfaces.
Article
Chemistry, Physical
Qin Chen, Shichao Song, Huacun Wang, Li Liang, Yajin Dong, Long Wen
Summary: A dual-resonance light coupling scheme is proposed in this work to achieve an almost one order-of-magnitude improvement in modulation depth-bandwidth product. By optimizing the dual-resonance configuration, decent light modulation can be obtained within a large operation wavelength band covering two resonances.
Article
Chemistry, Multidisciplinary
Eviatar Minerbi, Symeon Sideris, Jacob B. Khurgin, Tal Ellenbogen
Summary: We study the nonlinear THz emission from plasmonic metasurfaces and find that a thin ITO film significantly affects the system's nonlinear dynamics. The presence of the ITO film leads to a much stronger THz emission compared to a metasurface on glass, with a different dominant emission mechanism. The hot-electron dynamics in the system strongly modify the coupling between the metasurface and the free electrons in the ITO, resulting in dynamic THz emission phenomena that were not observed before.
Article
Optics
Yuchen Sun, Ping Xu, Lei Gao, Andrey E. Miroshnichenko, Dongliang Gao
Summary: This paper focuses on enhancing the spin Hall (SH) shift and scattering intensity of light from nanoparticles. The authors optimize the morphology of the nanoparticles and manipulate the electric and magnetic dipolar modes to overlap, resulting in simultaneous enhancements in the SH shift and scattering intensity. They also identify a new pattern on orbital momentum streamlines, revealing the near field's spin-orbit interaction. Experimental observations show a significant increase in scattering intensity for oblate spheroids compared to spherical counterparts. These findings contribute to a better understanding of light-matter interaction and facilitate the experimental detection of the SH effect of light.
LASER & PHOTONICS REVIEWS
(2022)
Article
Chemistry, Multidisciplinary
Kai Sun, Chong Wang, Jiahong Tian, Zheng Zhang, Ni Zeng, Rui Yin, Wenxin Duan, Qing Hou, Yaman Zhao, Haikun Wu, Runhua Fan
Summary: Magnetic-driven broadband ENZ materials, achieved by fabricating PVA/Ni@CNTs films, exhibit unique physical characteristics and show great potentials in various applications. The film also demonstrates excellent magnetic actuation ability under a magnetic field, expanding its applications to novel fields.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Physics, Applied
Yifei Song, Yetao Shu, Ting Jiang, Jing Liu, Zhaoming Luo
Summary: We systematically study the spin Hall effect of light (SHEL) in the PT-symmetric trilayer structure containing ENZ materials, and design a high sensitivity refractive index sensor. We find that the SHEL shift in the PT-symmetric trilayer structure is greatly enhanced due to the smoother change of reflection coefficient induced by the quasi-bound states in the continuum. We further discover that the SHEL shift is significantly enhanced near the quasi-BIC resonance angle and sensitive to the gain-loss coefficient and refractive index of the interlayer dielectric.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2023)
Article
Optics
Wenguo Zhu, Weilong She
OPTICS COMMUNICATIONS
(2015)
Article
Optics
V. Shvedov, P. Karpinski, Y. Sheng, X. Chen, W. Zhu, W. Krolikowski, C. Hnatovsky
Article
Optics
W. Zhu, V. Shvedov, W. She, W. Krolikowski
Article
Biochemical Research Methods
Wenguo Zhu, Niko Eckerskorn, Avinash Upadhya, Li Li, Andrei V. Rode, Woei Ming Lee
BIOMEDICAL OPTICS EXPRESS
(2016)
Article
Optics
Tenghui Ouyang, Limin Lin, Kai Xia, Mengjiang Jiang, Yuwei Lang, Heyuan Guan, Jianhui Yu, Dongquan Li, Guanglei Chen, Wenguo Zhu, Yongchun Zhong, Jieyuan Tang, Jiangli Dong, Huihui Lu, Yunhan Luo, Jun Zhang, Zhe Chen
Article
Optics
Wenguo Zhu, Jianhui Yu, Heyuan Guan, Huihui Lu, Jieyuan Tang, Yuanhan Luo, Zhe Chen
Article
Optics
Huazhuo Dong, Liheng Chen, Junjie Zhou, Jianhui Yu, Heyuan Guan, Wentao Qiu, Jiangli Dong, Huihui Lu, Jieyuan Tang, Wenguo Zhu, Zhigang Cai, Yi Xiao, Jun Zhang, Zhe Chen
Article
Optics
Suxu Zhou, Jiangli Dong, Donghui He, Yuan Wang, Wentao Qiu, Jianhui Yu, Heyuan Guan, Wenguo Zhu, Yongchun Zhong, Yunhan Luo, Jun Zhang, Zhe Chen, Huihui Lu
Article
Optics
Mengjiang Jiang, Wenguo Zhu, Heyuan Guan, Jianhui Yu, Huihui Lu, Jieyuan Tan, Jun Zhang, Zhe Chen
Article
Chemistry, Analytical
Yaoming Huang, Wenguo Zhu, Zhibin Li, Guanglei Chen, Liheng Chen, Junjie Zhou, Hai Lin, Junwen Guan, Wenxiao Fang, Xin Liu, Huazhuo Dong, Jieyuan Tang, Heyuan Guan, Huihui Lu, Yi Xiao, Jun Zhang, Hongcheng Wang, Zhe Chen, Jianhui Yu
SENSORS AND ACTUATORS B-CHEMICAL
(2018)
Article
Optics
Wenguo Zhu, Weilong She
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION
(2014)
Article
Optics
Wenguo Zhu, Weilong She
OPTICS COMMUNICATIONS
(2014)
Article
Multidisciplinary Sciences
Wenguo Zhu, Jianhui Yu, Heyuan Guan, Huihui Lu, Jieyuan Tang, Jun Zhang, Yunhan Luo, Zhe Chen
SCIENTIFIC REPORTS
(2017)
Proceedings Paper
Engineering, Electrical & Electronic
Liheng Chen, Xingyu Liu, Yinglin Liang, Baoheng Zhang, Wenguo Zhu, Jieyuan Tang, Heyuan Guan, Huihui Lu, Jun Zhang, Zhe Chen, Jianhui Yu
17TH INTERNATIONAL CONFERENCE ON NUMERICAL SIMULATION OF OPTOELECTRONIC DEVICES NUSOD 2017
(2017)
