Article
Optics
Shaoxin Shen, Yue Zeng, Zehuan Zheng, Renxian Gao, Guoya Sun, Zhilin Yang
Summary: This paper designs and fabricates three-dimensional metal-dielectric-metal plasmonic nanocavities with tunable modal volumes and reduced optical losses. It is found that these nanocavities can amplify second-harmonic lights by up to three orders of magnitude. The mechanism behind this signal amplification is attributed to the plasmon hybridization effect.
Article
Nanoscience & Nanotechnology
Kalun Bedingfield, Eoin Elliott, Arsenios Gisdakis, Nuttawut Kongsuwan, Jeremy J. Baumberg, Angela Demetriadou
Summary: Plasmonic nanocavities can confine light within sub-nanometer gaps and enable unprecedented control of light-matter interactions. This study focuses on the photonic modes and optical behavior of nanoparticle-on-mirror nanocavities constructed from different polyhedral nanoparticles. Through a recombination technique, the energy transfer in and out of the system is revealed. This work is important for understanding and controlling light-matter interactions in extreme environments, such as photocatalytic reactions.
Article
Nanoscience & Nanotechnology
Shaobo Li, Shuming Yang, Fei Wang, Qiang Liu, Biyao Cheng, Yossi Rosenwaks
Summary: This paper proposes an asymmetric fiber tip for broadband interference nanofocusing within its full optical wavelengths, achieving significant control over plasmonic resonance and providing fundamental insights into plasmon engineering with important applications in plasmon nanophotonic technologies.
Article
Nanoscience & Nanotechnology
Ren-Min Ma, Si-Yi Wang
Summary: Plasmonic nanolasers, a new class of coherent emitters, amplify surface plasmons in a plasmonic nanocavity and can operate beyond the diffraction limit with faster speed and lower power consumption. Emerging as a promising technology, they offer a wide range of applications and potential for further development.
Article
Chemistry, Multidisciplinary
Zhen-Ting Huang, Ting-Wei Chien, Chang-Wei Cheng, Cheng-Ching Li, Kuo-Ping Chen, Shangjr Gwo, Tien-Chang Lu
Summary: Stable electrical modulation of plasmonic nanolasers is achieved on a graphene-insulator-metal platform, where the gate voltage can adjust the lasing thresholds of the ZnO nanowire plasmonic nanolasers, providing high-speed modulation characteristics.
Article
Chemistry, Multidisciplinary
Debarghya Sarkar, Sangyeon Cho, Hao Yan, Nicola Martino, Paul H. H. Dannenberg, Seok Hyun Yun
Summary: Nanolasers with ultrasmall InGaP and InGaAsP disk structures have been demonstrated, offering potential applications in on-chip lightsources and optical barcoding particles. Single-mode lasing was achieved from both disk-on-pillar and isolated particles, with Purcell-enhanced stimulated emission obtained when isolated disks were placed on gold. Wafer-scale fabrication of nanodisks with random size variation was enabled by UV lithography and plasma ashing. Silica-coated nanodisk particles generated stable subnanometer spectra within biological cells across a wide bandwidth.
Article
Chemistry, Multidisciplinary
Zhen-Ting Huang, Ting-Wei Chien, Chang-Wei Cheng, Cheng-Ching Li, Kuo-Ping Chen, Shangjr Gwo, Tien-Chang Lu
Summary: Stable electrical modulation of plasmonic nano-lasers is achieved on a hybrid graphene-insulator-metal (GIM) platform at room temperature. A zinc oxide (ZnO) nanowire is placed on the GIM platform to create a plasmonic cavity, and the graphene layer is used for electrical modulation. The lasing thresholds of the ZnO nanowire plasmonic nanolasers on the GIM platform can be modulated by the gate voltage, demonstrating high potential for plasmonic circuit applications.
Article
Materials Science, Multidisciplinary
Meili Li, Junfeng Lu, Peng Wan, Mingming Jiang, Feng Lin, Xianxin Wu, Xinfeng Liu, Caofeng Pan
Summary: In this study, the piezoelectric effect of CsPbBr3 perovskite was utilized to enhance the performance of nanolasers based on the ScAu/M/CPB structure. By changing the applied strain, the piezoelectric polarization effect induced a shift in the plasmonic lasing mode, resulting in a reduction in the lasing threshold. The enhancement mechanism was explained, demonstrating the effective coupling of piezoelectric effect and plasmonics in improving nanolaser performance.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Thinh N. Tran, Sejeong Kim, Simon J. U. White, Minh Anh Phan Nguyen, Licheng Xiao, Stefan Strauf, Tieshan Yang, Igor Aharonovich, Zai-Quan Xu
Summary: The coupling of interlayer excitons (IEs) into optical cavities provides unique electromagnetic environments for controlling various optical processes. Experimental results show significant enhancements in optical performance by integrating IEs into plasmonic nanocavities at different temperatures.
Article
Chemistry, Multidisciplinary
Shu Hu, Eoin Elliott, Ana Sanchez-Iglesias, Junyang Huang, Chenyang Guo, Yidong Hou, Marlous Kamp, Eric S. A. Goerlitzer, Kalun Bedingfield, Bart de Nijs, Jialong Peng, Angela Demetriadou, Luis M. Liz-Marzan, Jeremy J. Baumberg
Summary: Bottom-up assembly of nanoparticle-on-mirror (NPoM) nanocavities enables precise inter-metal gap control down to approximate to 0.4 nm for confining light to sub-nanometer scales, thereby opening opportunities for developing innovative nanophotonic devices. However limited understanding, prediction, and optimization of light coupling and the difficulty of controlling nanoparticle facet shapes restricts the use of such building blocks.
Review
Materials Science, Multidisciplinary
Ru Wang, Chunfeng Wang, Yi Ma, Jianli Sun, Peiguang Yan, Chunxiang Xu, Caofeng Pan
Summary: Plasmonic nanolasers, which go beyond the diffraction limit, have gained significant attention. However, the high optical confinement caused by the plasmon effect also leads to metal absorption loss, increasing the pump threshold. This paper discusses the factors affecting the threshold, reviews experimental efforts, explores applications, and discusses approaches for threshold reduction and future possibilities.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Optics
Da-Jie Yang, Si-Jing Ding, Liang Ma, Qing-Xia Mu, Qu-Quan Wang
Summary: This study reveals the nature of recently reported plasmon modes by introducing the concept of SPP standing waves and an analytical model. The study systematically analyzes SPP standing waves within various nanocavities and explains some unusual phenomena. The research has significant implications for a comprehensive understanding and application of cavity plasmons in ultrasensitive bio-sensings.
Article
Optics
Shiyu Li, Guomeng Zuo, Nishan Wu, Zhao Yang, Benyang Zhao, Li Xia, Wei Li
Summary: The study introduces a hybrid plasmonic nanofocusing waveguide for a surface-enhanced Raman scattering tweezer, enabling on-chip Raman detection and optical trapping. By optimizing the tweezer design, it is able to efficiently trap and detect 20 nm diameter sample particles, showcasing the potential for integrated SERS detection and optical manipulation on a chip.
OPTICS AND LASER TECHNOLOGY
(2021)
Article
Nanoscience & Nanotechnology
Min-Soo Hwang, Ha-Reem Kim, Kwang-Yong Jeong, Hong-Gyu Park, Yuri Kivshar
Summary: Nanophotonics historically focuses on controlling light at the nanoscale, with recent advancements leading to the development of novel nonplasmonic nano structures and nanolasers empowered by topology and interference effects. These new developments in high-index dielectric nanostructures have expanded the field of nanophotonics and introduced innovative optical devices.
Article
Chemistry, Physical
Brian S. Y. Kim, Aaron J. Sternbach, Min Sup Choi, Zhiyuan Sun, Francesco L. Ruta, Yinming Shao, Alexander S. McLeod, Lin Xiong, Yinan Dong, Ted S. Chung, Anjaly Rajendran, Song Liu, Ankur Nipane, Sang Hoon Chae, Amirali Zangiabadi, Xiaodong Xu, Andrew J. Millis, P. James Schuck, Cory. R. Dean, James C. Hone, D. N. Basov
Summary: Researchers have demonstrated a charge transfer strategy to program ambipolar low-loss graphene plasmonic structures, by covering graphene with transition-metal dichalcogenides and subsequently oxidizing them into transition-metal oxides. They achieve ambipolar low-loss plasmon polaritons at the transition-metal-oxide/graphene interfaces and precisely control the electron and hole densities induced by oxidation-activated charge transfer with the help of dielectric van der Waals spacers.