Article
Chemistry, Multidisciplinary
Jada Ravi, Avulu Vinod Kumar, Durga Prasad Karothu, Mari Annadhasan, Pance Naumov, Rajadurai Chandrasekar
Summary: This study describes the construction of silicon-free, all-organic photonic integrated circuits by micromanipulation of two mechanically different organic crystals with complementary optical properties. The results show the infinite structural variations in optical microstructures that can be achieved using organic crystals, highlighting the untapped potential for lightweight all-organic optical minicircuitry with deformable light-transducive crystals.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Nanoscience & Nanotechnology
Jin Zhang, Linda Shao, Zhenfei Li, Chiben Zhang, Weiren Zhu
Summary: This paper proposes a design for an optically transparent and dynamically tunable microwave-absorbing metasurface that enables dual modulations independently for two orthogonal linearly polarized excitations. The tunability is achieved by an anisotropic meta-atom composed of patterned graphene structure with dynamic and independent control of electromagnetic responses. Experimental measurements and circuit modeling demonstrate the dual tunability and physical relation between graphene's sheet resistance and polarization-independent modulations. The proposed metasurface enhances multitasking stealth performance in complex scenarios and has potential applications in advanced solar energy devices.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Optics
Marco Clementi, Simone Iadanza, Sebastian A. Schulz, Giulia Urbinati, Dario Gerace, Liam O'Faloain, Matteo Galli
Summary: The observation of a new form of EIT effect in a strongly driven silicon photonic crystal resonator at room temperature has allowed for amplification of a weak probe beam and transparency. This thermo-optically induced transparency effect can provide versatile implementation of EIT analogs in an integrated photonic platform at almost any wavelength of interest, room temperature, and in a practical, low cost, and scalable system.
LIGHT-SCIENCE & APPLICATIONS
(2021)
Article
Optics
Feng Wen, Shaowei Zhang, Sijia Hui, Hanghang Ma, Sijia Wang, Huapeng Ye, Wei Wang, Tianfei Zhu, Yanpeng Zhang, Hongxing Wang
Summary: This article reports on a method of inducing a tunable THz lattice in magnetized monolayer graphene through interference of optical beams. By manipulating the optical parameters, the optical properties of the induced lattice can be efficiently tuned, and adjustable effects are observed in far-field diffraction. The research provides a versatile tool for all-optical switching at the few photons level and paves the way for the development of next generation high-speed wireless communication.
Article
Nanoscience & Nanotechnology
Limin Ma, Han Xu, Zhengang Lu, Jiubin Tan
Summary: This study proposes a graphene-based microwave absorber that combines broadband absorption, high optical transparency, and insensitivity to incident angle. The absorber achieves a 90% absorption bandwidth of 10 GHz and can be tuned by adjusting the thickness of the dielectric layer. It offers a viable solution for effectively integrating broadband and near-unity microwave absorption with high optical transparency.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Optics
Zi-fa Yu, Ju-kui Xue
Summary: We studied the transmission of probe fields in a coupled-cavity system with polaritons and proposed a theoretical framework for realizing a polariton-based photonic transistor. The resonant point, intensity, and group velocity of the probe light passing through the optomechanical device can be effectively controlled by another pump light, depending on the exciton-photon coupling and single-photon coupling. We also discovered an asymmetric Fano resonance in transparency windows under strong exciton-photon coupling, providing exciting possibilities for designing photonic transistors and polariton integrated circuits.
Article
Chemistry, Physical
Jin Zhang, Zhenfei Li, Linda Shao, Fajun Xiao, Weiren Zhu
Summary: The study demonstrates the active modulation of EIT analog by integrating graphene into a microwave metamaterial for the first time, showing that the EIT peak can be dynamically controlled under a relatively low bias voltage applied on graphene. The continuous tuning of the EIT resonance strength is achieved by variably dampening the dark resonator using graphene.
Review
Chemistry, Multidisciplinary
Xu Zhou, Qingyan Deng, Wentao Yu, Kaihui Liu, Zhongfan Liu
Summary: This review summarizes recent studies and achievements in the field of graphene-traditional fibers and graphene photonic crystal fibers (Gr-PCFs), highlighting the development process, preparation methods, and device applications. The integration of graphene with a PCF has led to the creation of a new hybrid fiber, Gr-PCF, which exhibits strong and tunable light-matter interaction capabilities across a wide spectrum range. Challenges and perspectives in advanced Gr-PCF research are also presented.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Engineering, Electrical & Electronic
Mohammad Javad Maleki, Mohammad Soroosh
Summary: In this paper, a new structure based on the two-dimensional photonic crystal for an all-optical 2-to-1 digital multiplexer has been proposed. The structure features small area, fast response, and high contrast ratio, promising wide applicability in optical processing.
OPTICAL AND QUANTUM ELECTRONICS
(2022)
Article
Crystallography
Chan-Shan Yang, Yi-Sheng Cheng, Young-Chou Hsu, Yi-Cheng Chung, Jing-Ting Hung, Chien-Hao Liu, Jin-Chen Hsu, Cheng-Ying Chen, Chii-Rong Yang, Yu-Tai Li, Nan-Nong Huang, Tzy-Rong Lin
Summary: This study introduces a biochemical sensor with graphene for detecting molecular fingerprints of biochemicals. The sensor is highly sensitive and can be tuned electrically and through a phononic bandgap to enhance performance. Utilizing these features can improve selectivity in analyte detections.
Article
Chemistry, Multidisciplinary
Sayed Elshahat, Israa Abood, Zixian Liang, Jihong Pei, Zhengbiao Ouyang
Summary: The study proposes a paradigm for high buffering performance in a photonic crystal waveguide, achieved through structural adjustments and sensitivity enhancements to the liquid medium, resulting in dynamic modulation and strong light-matter interaction.
Article
Engineering, Electrical & Electronic
Huibo Fan, Cong Lu, Hui He, Li Fan, Haitao Chen
Summary: An ultracompact graphene-coated twisted silica taper is fabricated and applied for highly sensitive sensing and all-optical modulation. The coated graphene enhances the temperature sensing by its fast thermal response and the production and confinement of more propagating modes through the surface plasmon polariton (SPP) effect in the twisted taper. The enhanced multimode interference improves the optical sensitivities for temperature and strain sensing. Additionally, the proposed taper exhibits a significant resonant wavelength shift for all-optical modulation.
IEEE SENSORS JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Qingsong Yu, Zhenzhi Liu, Dawei Guo, Shun Liang, Yanpeng Zhang, Zhaoyang Zhang
Summary: In this study, we demonstrate both experimentally and theoretically the transition of band structure from flatband to type-III Dirac cones in an electromagnetically induced Kagome photonic lattice. By manipulating the intensity of an additional one-dimensional periodic coupling field, the dispersion-less energy band can evolve into type-III Dirac cones with linear dispersion.
Article
Optics
Shun Liang, Zhenzhi Liu, Jiawei Yu, Qingsong Yu, Shaohuan Ning, Yanpeng Zhang, Zhaoyang Zhang
Summary: This study reports the construction of an instantaneously reconfigurable electromagnetically induced Kagome lattice in a A-type 85Rb atomic configuration. By using a weak Gaussian probe field and a strong coupling field with a Kagome intensity profile, the incident Gaussian probe field is diffracted into a Kagome profile inside the atomic vapor cell. The modulated susceptibility induced by a structured coupling field allows the exploration of the dynamical evolution of the probe field inside the Kagome photonic lattice.
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS
(2023)
Article
Optics
Jiao Xu, Yuxiang Peng, Shenping Wang, Jie Jiang, Shengyou Qian, Leyong Jiang
Summary: In this study, we investigate the low-threshold optical bistability of transmitted beams at the terahertz range using a photonic crystal Fabry-Perot cavity with graphene. Graphene with strong nonlinear conductivity is placed in the middle of the Fabry-Perot cavity, and the resonance of the cavity plays a positive role in promoting the low-threshold optical bistability. The optical bistability curve is closely related to the incident angle of light, the parameters of graphene, and the structural parameters of the Fabry-Perot cavity.
Article
Biochemical Research Methods
Yuqi Zhou, Masako Nishikawa, Hiroshi Kanno, Ruoxi Yang, Yuma Ibayashi, Ting-Hui Xiao, Walker Peterson, Maik Herbig, Nao Nitta, Shigeki Miyata, Yogendra Kanthi, Gustavo K. Rohde, Kyoji Moriya, Yutaka Yatomi, Keisuke Goda
Summary: This study used image-based single-cell profiling and temporal monitoring to investigate the long-term effects of Pfizer-BioNTech COVID-19 vaccines on platelet function. The results showed that there were no significant or persisting platelet aggregation trends following the vaccine doses.
Article
Physics, Multidisciplinary
Ya-Ting Qiu, Li-Hong Hong, Zhi-Yuan Li
Summary: This work theoretically and systematically investigates the second harmonic generation (SHG) in a lithium niobate (LN) crystal by considering the transmission and reflection of TE-polarized pump light at the air-crystal interface. The physical process of light beam transport and nonlinear optical polarization generation in the crystal is described, and the reflection coefficient and transmission coefficient of pump light are derived. The conversion efficiency of the second-harmonic wave is found to depend on the transmission coefficient and other physical quantities, such as the length of the crystal and the amplitude of pump light, under the transmission and reflection models. The proposed analytical theory and formulation provide an accurate tool for evaluating the SHG energy conversion efficiency in practical situations and can be applied to other nonlinear optics problems.
Article
Chemistry, Analytical
Yasutaka Kitahama, Pablo Martinez Pancorbo, Hiroki Segawa, Machiko Marumi, Ting-Hui Xiao, Kotaro Hiramatsu, William Yang, Keisuke Goda
Summary: We propose a new measurement scheme based on Place & Play SERS, which utilizes an ultrathin, flexible, stretchable, adhesive, biointegratable gold-deposited PVA nanomesh substrate. This method allows for SERS measurement of an object by placing the substrate on top without touching, destroying, or sampling it. Experimental results validate this new measurement scheme and demonstrate its practical applications in fields such as food safety testing and forensic analysis.
ANALYTICAL METHODS
(2023)
Article
Biochemical Research Methods
Yunjie Deng, Hui Min Tay, Yuqi Zhou, Xueer Fei, Xuke Tang, Masako Nishikawa, Yutaka Yatomi, Han Wei Hou, Ting-Hui Xiao, Keisuke Goda
Summary: Vascular stenosis caused by atherosclerosis leads to platelet activation and aggregation, resulting in thrombus formation. Antiplatelet drugs are commonly used but may not prevent recurrent thrombotic events due to limited understanding of their efficacy in the complex hemodynamic environment. We propose and demonstrate a method involving a 3D stenosis microfluidic chip and optical time-stretch quantitative phase imaging system for studying the efficacy of antiplatelet drugs under stenosis. Our method simulates the flow environment of vascular stenosis and enables high-resolution and statistical analysis of platelet aggregates. This method can assist in developing optimal pharmacologic strategies for patients with atherosclerosis.
Article
Optics
Yang Yu, Ya-nan Yu, Zhao-kun Chen, Chun-ran Li, Nong Tian, Hao-chen Yan, Jian-yi Luo, Ting-hui Xiao
Summary: Fiber-optic sensors are widely used in modern sensing technologies due to their low cost, strong electromagnetic interference immunity, and remote sensing capability. We propose and experimentally demonstrate an ultracompact Vernier-effect-improved sensor using only a single microfiber-knot resonator. By controlling the optical beating with the spectral ripple of a super light emitting diode (SLED), we achieve 20x sensitivity enhancement for quantitative temperature monitoring. Our sensor provides a practical method to realize the Vernier effect in fiber-optic sensors and opens up new possibilities for their development.
Article
Biochemical Research Methods
Chenqi Zhang, Maik Herbig, Yuqi Zhou, Masako Nishikawa, Mohammad Shifat-E-Rabbi, Hiroshi Kanno, Ruoxi Yang, Yuma Ibayashi, Ting-Hui Xiao, Gustavo K. Rohde, Masataka Sato, Satoshi Kodera, Masao Daimon, Yutaka Yatomi, Keisuke Goda
Summary: Using a microfluidic imaging flow cytometer, the researchers measured the blood of 181 COVID-19 samples and 101 non-COVID-19 thrombosis samples. They trained a convolutional neural network to distinguish different blood cell types and performed image analysis for each subpopulation. Based on the obtained features, machine learning models were trained to classify COVID-19 and non-COVID-19 thrombosis, achieving a patient testing accuracy of 75%. The analysis was optimized for efficiency and implemented in an easy-to-use plugin, allowing real-time diagnosis on mid-range computers.
Article
Physics, Multidisciplinary
Yafeng Huang, Junwei Xu, Ximin Tian, Pei Ding, Zhanjun Yu, Jie Li, Yaning Xu, Shenglan Zhang, Xiaolong Ma, Xiangyang Duan, Zhi-yuan Li
Summary: This paper proposes a design strategy based on a single-cell-designed approach to achieve spin-multiplexing and varifocal performance using pure PB phases. This novel design avenue shows great potential in applications such as imaging, optical storage, and optical interconnections.
Article
Physics, Applied
Zitao Ji, Jianfeng Chen, Zhi-Yuan Li
Summary: Topological photonics has shown great potential in manipulating electromagnetic waves and light. While there have been numerous studies on chiral topological photonic states, the achievements of antichiral topological photonic states have been limited. This Perspective reviews recent progress in the field, including basic concepts, properties, and applications of antichiral topological photonic states in magnetic photonic systems. The article also provides an outlook on emerging frontier topics, promising opportunities, fundamental challenges, and potential applications for antichiral magnetic topological photonics.
JOURNAL OF APPLIED PHYSICS
(2023)
Article
Optics
Jianbo Pan, Yidong Zheng, Jianfeng Chen, Zhi-Yuan Li
Summary: This article introduces the problem of electromagnetic wave transmission in a magneto-optical medium and describes several interesting physical images and classical physical variables using a simple and rigorous electromagnetic field solution approach. This theory can help deepen and broaden our understanding of basic electromagnetics, optics, and electrodynamics, and may provide insight into new ways and methods for high technologies in optics and microwaves.
Article
Physics, Multidisciplinary
Weicheng Chen, Qi He, Rongxiang Guo, Dian Wan, Qun Han, Haofeng Hu, Jiaqi Wang, Yi Zou, Ting-Hui Xiao, Tiegen Liu, Zhenzhou Cheng
Summary: Mid-infrared (Mid-IR) Kerr frequency combs have great potential in sensing and spectroscopy. We theoretically study a technique for generating a mid-IR Kerr frequency comb using a monochromatic mid-IR laser and a graphene-on-silicon micro-resonator. The approach utilizes an electric-field-assisted resonance scanning technique and graphene-enhanced silicon Kerr nonlinearity. Our results show the generation of a soliton Kerr frequency comb with a wide spectral range, bandwidth, and frequency spacing. This study paves the way for the development of cost-effective and fast-tuning mid-IR Kerr frequency combs.
Article
Chemistry, Analytical
Haowei Duan, Yizhou Wang, Shi-Yang Tang, Ting-Hui Xiao, Keisuke Goda, Ming Li
Summary: This study presents a carbon-based E-CRISPR modified with gold nanoparticles and MXene Ti3C2 for stable and sensitive detection of nucleic acids. The developed sensor shows excellent analytical performance and long-term shelf life.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Optics
Lihong Hong, Chenyang Hu, Yuanyuan Liu, Huijun He, Liqiang Liu, Zhiyi Wei, Zhi-Yuan Li
Summary: In this study, a high-efficiency supercontinuum white laser with large bandwidth and high pulse energy was generated using a single nonlinear crystal. By exploiting the synergistic effects of high-harmonic generation and self-phase modulation, a 2.8-octave-spanning UV-Vis-IR supercontinuum white laser was achieved. This breakthrough has significant implications for various applications in basic science and high technology.
Article
Optics
Huakang Yu, Yipeng Lun, Jintian Lin, Yantong Li, Xingzhao Huang, Bodong Liu, Wanling Wu, Chunhua Wang, Ya Cheng, Zhi-yuan Li, Jacob B. Khurgin
Summary: This study presents a new on-chip diagnostic tool, T-FROG, for real-time full characterization of waveguided ultrashort optical pulses. Implemented on a thin-film lithium niobate platform, T-FROG accurately characterizes various properties of waveguided femtosecond pulses. In contrast to traditional techniques, T-FROG provides significant improvement by directly capturing temporal amplitude and phase profiles of ultrafast optical pulses inside photonic integrated circuits. The real-time in situ characteristics and dynamics of optical pulses offered by T-FROG show promise for their potential applications in the design, testing, and optimization of ultrafast photonic integrated circuits.
LASER & PHOTONICS REVIEWS
(2023)
Editorial Material
Optics
Ting-Hui Xiao, Yuqi Zhou, Keisuke Goda
Summary: In-silico clearing is a breakthrough method that corrects image blur caused by scattering and aberration, enabling deep optical imaging of biological samples. This technique provides researchers with unprecedented insights into three-dimensional biological systems, offering enormous potential for advancing biology and medicine to better understand living organisms and human health.
LIGHT-SCIENCE & APPLICATIONS
(2023)
Article
Biochemical Research Methods
Yueyun Weng, Hui Shen, Liye Mei, Li Liu, Yifan Yao, Rubing Li, Shubin Wei, Ruopeng Yan, Xiaolan Ruan, Du Wang, Yongchang Wei, Yunjie Deng, Yuqi Zhou, Tinghui Xiao, Keisuke Goda, Sheng Liu, Fuling Zhou, Cheng Lei
Summary: Acute leukemia (AL) is a life-threatening disease, and accurate typing of AL is important for prognosis improvement. In this study, we present a label-free AL typing method using intelligent optical time-stretch imaging flow cytometry on a microfluidic chip. The results show that our method can accurately distinguish different types of AL samples.
