Article
Chemistry, Multidisciplinary
Bisweswar Patra, Bijesh Kafle, Terefe. G. G. Habteyes
Summary: The interaction between nanocavity plasmons and molecular vibrations can be tailored for sensing and photocatalytic applications. In this study, laser-plasmon detuning dependent plasmon resonance linewidth broadening is observed, indicating energy transfer from the plasmon field to vibrational modes. The experimental results suggest that molecular optomechanics coupling can create hybrid properties based on interactions between molecular oscillators and nanocavity electromagnetic optical modes.
Article
Nanoscience & Nanotechnology
Adi Salomon, Heiko Kollmann, Manfred Mascheck, Slawa Schmidt, Yehiam Prior, Christoph Lienau, Martin Silies
Summary: Localized surface plasmon resonances in metallic films can couple to form collective behavior, affecting the linear and nonlinear optical properties of the sample. Introduction of defects in nanocavity arrays leads to hot-spot formation and spatially confined fluctuations of the plasmonic field. By manipulating hot spot lifetime, the optical properties of nanosystems can be tailored through coherent couplings and tailored disorder.
Article
Engineering, Electrical & Electronic
Zhao Chen, Yinli Wang, Zhiling Hou, Pengfei Zhang, Li Yu
Summary: A novel plasmonic nanosensor based on loaded slot cavity is proposed and studied. The presence of the load causes a red shift in the resonant wavelength, leading to enhanced sensitivity. The structure is applicable in actual biosensing and can be used for detecting blood plasma concentration, glucose concentration, ethanol temperature, and diseased cells with high sensitivity.
IEEE SENSORS JOURNAL
(2022)
Article
Optics
Wei Wei, Qi Liu, Xia Zhang, Xin Yan
Summary: Researchers proposed to manipulate the emission rate of a single-photon emitter using detuned resonant nanocavities, and found that the plasmon-induced transparency effect can significantly enhance the emission rate of the emitter through simulation. This ultrafast single-photon emitter has diverse applications in the field of quantum information and quantum communications.
Article
Physics, Applied
Min Li, Cuixiu Xiong, Chao Liu, Biao Zeng, Banxian Ruan, Baihui Zhang, Enduo Gao, Hongjian Li
Summary: In this paper, an easily implemented monolayer graphene structure is proposed for achieving triple plasmon-induced transparency and absorption effects. By altering the Fermi energy and carrier mobility of graphene, the absorption intensity can be dynamically controlled over a broadband frequency range. The triple plasmon-induced absorption spectrum shows 20 times more absorption bands compared to monolayer graphene, with a sensitivity of 0.4 THz RIU-1 for terahertz plasmonic sensing applications.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2021)
Article
Physics, Applied
Lei Han, Qiulin Tan, Huan Li, Jijun Xiong, Wendong Zhang
Summary: The research introduces the tunable plasmon-induced transparency phenomenon in semiconductor-based H-shaped chip-scale metamaterials, demonstrating its physical mechanism through numerical analysis and an equivalent Lorentz model. In practical applications, adjusting the polarization angle and temperature can respectively control the group delay and transmission peak frequency of the PIT effect, suitable for temperature sensing and thermo-optic switches. The chip-scale semiconductor metamaterial shows potential for applications in modulators and sensors with high amplitude modulation depth of 97.8%.
JOURNAL OF APPLIED PHYSICS
(2021)
Article
Optics
Zhao Chen, Xinxin Ma, Yunhong Duan, Linhao Li, Shijie Zhang, Yilin Wang, Yaolun Yu, Zhiling Hou
Summary: We numerically predict a special phenomenon called electromagnetically induced absorption (EIA) by introducing a resonator on a cavity. We find that this EIA phenomenon can be easily tuned and double valleys can be observed with an additional resonator. Furthermore, our investigated structures demonstrate a fast-light effect and achieve high-performance nano-sensor based on Fano resonance.
Article
Optics
Xinxin Ma, Zhao Chen, Yunhong Duan, Linhao Li, Shijie Zhang, Yilin Wang, Yaolun Yu, Zhiling Hou
Summary: In this study, the phenomenon of electromagnetically induced absorption (EIA) is predicted in a compact plasmonic waveguide system through the introduction of a slot resonator above a square cavity. The response of EIA can be easily tuned by adjusting the structure's parameters, and the presence of an additional slot resonator leads to the observation of double EIA valleys. Furthermore, the investigated structures exhibit a fast-light effect with an optical delay of -1.0 ps due to abnormal dispersion at the EIA valley, offering potential applications in on-chip fast-light area. A plasmonic nanosensor with high sensitivity and a figure of merit is also achieved based on Fano resonance.
Article
Materials Science, Multidisciplinary
Junxi Zhang, Fei Wang, Sonia Ghafoor, Haoyu Wang, Wei Zhang, Kang Xie, Rui Cheng, Jian Yan, Lijie Niu, Pei Wang, Lin Zhang, Zhijia Hu
Summary: This study presents a new strategy for designing tunable random lasers by coupling silver nanorod arrays with emitters of Nile red/PMMA. The plasmonic random laser exhibits strong and narrow emission peaks with a low lasing threshold. Furthermore, the lasing wavelength can be widely tuned by different order harmonic modes of the plasmonic resonant nanocavities.
ADVANCED OPTICAL MATERIALS
(2022)
Article
Physics, Applied
Jing Yue, Xiang Zhai, Xiongjun Shang, Haiyu Meng, Shengxuan Xia, Lingling Wang
Summary: This study proposes a method to achieve dual plasmon-induced transparency effects by tuning the coupling between graphene resonators. The number and positions of the transparent windows can be modulated by adjusting the Fermi energy and coupling distance, allowing for the design of a high-efficiency switch.
APPLIED PHYSICS EXPRESS
(2022)
Article
Physics, Applied
Tian-qi Long, Lian-gang Zhang, Ling-Ling Wang, Qi Lin
Summary: A new grating-assisted triple-layer continuous borophene sheets structure is proposed to achieve phase-coupled plasmon-induced transparency effect. The continuous borophene sheet can avoid complicated processing techniques and additional doping configurations, and the transparency windows can be efficiently tuned by adjusting carrier densities or separation distances.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2022)
Article
Optics
Jiawei Sun, Huatian Hu, Yuhao Xu, Yang Li, Hongxing Xu
Summary: In this study, the in-situ optical tuning of the nanocavity mode in the nanocube-on-mirror nanocavities was achieved by continuous laser irradiation. Through photothermal-assisted morphology changes, the plasmon resonances were shifted by deforming the surfactant covering the silver nanocube and reshaping the nanocube curvature. It was found that the alumina-encapsulated nanocube-on-mirrors constructed by surfactant-eliminated nanocubes were capable of enduring more intense irradiation. Furthermore, the factors affecting the plasmonic heating effect were systematically investigated.
LASER & PHOTONICS REVIEWS
(2022)
Article
Materials Science, Multidisciplinary
Shuxian Chen, Liang Zeng, Jiaqi Li, Jun Weng, Junyi Li, Zicong Guo, Pengbai Xu, Wenjie Liu, Jun Yang, Yuwen Qin, Kunhua Wen
Summary: The paper proposes a graphene-based metamaterial structure that generates the plasmon-induced transparency (PIT) effect. The physical properties and performance of the structure in an optical switch are analyzed, and the results demonstrate high modulation depth, polarization extinction ratio, and the potential for achieving dual and triple PIT effects.
RESULTS IN PHYSICS
(2022)
Article
Chemistry, Multidisciplinary
Fernando Lopez-Rayon, Maximino L. Arroyo Carrasco, Rene Rodriguez-Beltran, Rafael Salas-Montiel, Ricardo Tellez-Limon
Summary: In this study, we numerically demonstrate the generation of plasmonic transparency windows in the transmission spectrum of an integrated metaphotonic device and explain the underlying mechanisms. This analysis contributes to the understanding of plasmonic transparency windows and opens up new perspectives for the design of on-chip devices for optical communications, sensing, and signal filtering applications.
Article
Optics
Tao Zhou, Suguo Chen, Xiaoju Zhang, Xiang Zhang, Hui Hu, Yue Wang
Summary: In this work, a study of bright-bright mode electromagnetically induced transparency based on carbon nanotube films terahertz metasurface is presented. The formation mechanism of the transparent window is analyzed, and the sensing performance and slow light characteristics of the proposed metasurface are investigated. This study provides opportunities for electromagnetically induced transparency applications.