Article
Multidisciplinary Sciences
Andres de los Rios Sommer, Nadine Meyer, Romain Quidant
Summary: This study demonstrates strong coupling regime at room temperature between a levitated silica particle and a high finesse optical cavity. The coupling strength achieved is close to three times the cavity linewidth, deep into the strong coupling regime.Entering the strong coupling regime is an essential step towards quantum control with mesoscopic objects at room temperature.
NATURE COMMUNICATIONS
(2021)
Article
Chemistry, Multidisciplinary
Yan Liang, Xingshuai Lv, Thomas Frauenheim
Summary: This study proposes an alternative approach to realize the strongly coupled ferromagnetism and ferroelasticity by carrier doping. The authors demonstrate that prototypical 2D beta-PbO is dynamically, thermally and mechanically stable, and possesses ferromagnetism and ferroelasticity simultaneously under hole doping. They also find that the robustness of ferromagnetic and ferroelastic orders is doping tunable and highlight the efficient ferroelastic control of anisotropic optical property and spin splitting in 2D beta-PbO.
Article
Optics
Qing-Qing Guo, Shan Liang, Bo Gong, Jian-Bo Li, S. Xiao, Meng-Dong He, Li-Qun Chen
Summary: We propose a scheme to generate ultra-strong four-wave mixing (FWM) signal using a suspended monolayer graphene nanoribbon nanomechanical resonator (NR) coupled to an Au nanoparticle (NP). The FWM spectrum can switch between two-peaked, three-peaked, four-peaked, or five-peaked by modulating the exciton-phonon and exciton-plasmon couplings. The findings offer insights into measuring the vibrational frequency of NR and the exciton-phonon coupling strength, as well as the fabrication of high-performance optoelectronic nanodevices.
Review
Nanoscience & Nanotechnology
Yoon-Min Lee, Seong-Eun Kim, Jeong-Eun Park
Summary: The study of strong coupling between light and matter has gained significant attention in recent years due to its potential applications in diverse fields. Plasmonic cavities, particularly colloidal metal nanoparticles, offer an attractive alternative for ultracompact polaritonic systems at room temperature. This review highlights the advantages of colloidal metal nanoparticles as plasmonic cavities, focusing on their facile synthesis, tunable plasmonic properties, and easy integration with excitonic materials. The review explores recent examples of strong coupling in single nanoparticles, dimers, nanoparticle-on-a-mirror configurations, and other types of nanoparticle-based resonators, revealing their potential in nanophotonic applications.
Article
Optics
Lin Liu, Landobasa Y. M. Tobing, Tingting Wu, Bo Qiang, Francisco J. Garcia-Vidal, Dao Hua Zhang, Qi Jie Wang, Yu Luo
Summary: Strong light-matter interaction in 2D materials at the few-exciton level, characterized by fast coherent energy exchange between photons and excitons, is important for fundamental studies and quantum optical applications. This study demonstrates a strongly coupled gold dimer antenna with a sub-10 nm gap on a monolayer tungsten disulphide (WS2), showing a way to increase the number of excitons up to tenfold by varying the spatial mode overlap between the plasmonic field and the 2D material, with further tuning possible via plasmon-induced heating effects. These results represent progress towards quantum optical applications operating at room temperatures.
Article
Chemistry, Multidisciplinary
Jing Liu, Kezhen Yi, Qi Zhang, Hang Xu, Xingang Zhang, Dong He, Fubing Wang, Xiangheng Xiao
Summary: By packaging black phosphorus quantum dots into exosome vectors, the intratumoral distribution issue of nanocancer medicine has been effectively addressed, leading to significantly improved efficiency and tumor killing ability of photothermal therapy.
Article
Optics
Wei Xiong, Mingfeng Wang, Guo-Qiang Zhang, Jiaojiao Chen
Summary: We propose an approach to realize strong spin-magnon coupling in a hybrid optomechanical cavity-spin-magnon system. By eliminating the mechanical mode, position-position coupling and two-mode squeezing of two cavities are induced. In the squeezing representation, the coupling strengths of spin-photon, magnon-photon, and photon-photon are exponentially amplified, allowing for the generation of lower- and upper-branch polaritons (LBP and UBP) by strongly coupled squeezed modes of two cavities. Utilizing the critical property of LBP, the coupling between the spin qubit (magnon) and LBP is greatly enhanced, while the coupling between the spin qubit (magnon) and UBP is fully suppressed. In the dispersive regime, strong and tunable spin-magnon coupling is induced by the virtual LBP, enabling quantum state exchange between them. Our proposal provides a promising platform to construct magnon-based hybrid systems and realize solid-state quantum information processing with optomechanical interfaces.
Article
Chemistry, Multidisciplinary
Jun-Yu Li, Wei Li, Jin Liu, Jie Zhong, Renming Liu, Huanjun Chen, Xue-Hua Wang
Summary: By integrating a single quantum dot with a single gold nanorod, the strong coupling between quantum dots and plasmonic nanoparticles has been achieved, opening up a new pathway for solid-state quantum information processing. Utilizing a wedge nanogap cavity, the plasmonic electric fields were effectively confined in the nanoshell of the quantum dot, leading to the largest spectral Rabi splitting reported so far.
Article
Chemistry, Multidisciplinary
Jacopo Fregoni, Tor S. Haugland, Silvio Pipolo, Tommaso Giovannini, Henrik Koch, Stefano Corni
Summary: Plasmonic nanocavities can confine molecules and electromagnetic fields in nanometric volumes, leading to strong interactions between them. A nonperturbative method combining quantum chemical descriptions of molecules with localized surface plasmons has been used to simulate the properties of polaritons. The study reveals the effects of mutual polarization and correlation of plasmons and molecular excitations, serving as benchmarks for the development of molecular polaritonics methods.
Article
Chemistry, Multidisciplinary
Alexander D. Sample, Jun Guan, Jingtian Hu, Thaddeus Reese, Charles R. Cherqui, Jeong-Eun Park, Francisco Freire-Fernandez, Richard D. Schaller, George C. Schatz, Teri W. Odom
Summary: This study describes the strong coupling between MOFs and plasmonic nanoparticle (NP) lattices, with the formation of a polariton observed through optical measurements and modeling. The hybrid system demonstrated the potential of MOFs as an accessible excitonic material for polariton chemistry.
Review
Multidisciplinary Sciences
Francisco J. Garcia-Vidal, Cristiano Ciuti, Thomas W. Ebbesen
Summary: In the past decade, there has been a surge of interest in using hybrid light-matter states to control the properties of matter and chemical reactivity. Experimental and theoretical studies have shown that these hybrid states can enhance properties like transport, magnetism, and superconductivity, as well as modify (bio)chemical reactivity. This multidisciplinary field has great potential for further exploration.
Article
Chemistry, Physical
Ekaterina A. Dolgopolova, Dongfang Li, Steven T. Hartman, John Watt, Carlos Rios, Juejun Hu, Ravi Kukkadapu, Joanna Casson, Riya Bose, Anton Malko, Anastasia Blake, Sergei Ivanov, Oleksiy Roslyak, Andrei Piryatinski, Han Htoon, Hou-Tong Chen, Ghanshyam Pilania, Jennifer A. Hollingsworth
Summary: Research shows that spinel metal oxide nanocrystals have the ability to modify the light-emission properties of telecom-emitting quantum dots. By adjusting synthetic conditions, unprecedented tunability of nanocrystal size, composition, and doping characteristics can be achieved. Plasmonics enhancement can significantly increase the decay rates of quantum dots emitting in the communication range.
NANOSCALE HORIZONS
(2022)
Article
Chemistry, Multidisciplinary
Nianfang Wang, Seokhyeon Cheong, Da-Eun Yoon, Pan Lu, Hyunjoo Lee, Young Kuk Lee, Young-Shin Park, Doh C. Lee
Summary: Advances in nanotechnology have enabled precise design of catalytic sites for CO2 photoreduction, but most nanostructured photocatalysts have low activity. To address this issue, researchers constructed CdS nanosheets terminated by S2- atomic layers as intrinsic photocatalysts. Experimental results show that these nanostructures exhibit excellent photocatalytic performance, efficiently converting CO2 into CO with high selectivity.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Multidisciplinary
Dipti Jasrasaria, Eran Rabani
Summary: This study developed an atomistic approach for describing exciton-phonon coupling in semiconductor nanocrystals and validated the method's reliability. Experimental results showed that exciton-phonon coupling leads to lattice distortion in nanocrystals, with surface modes playing a significant role in smaller nanocrystals and interior modes dominating in larger systems.
Article
Materials Science, Multidisciplinary
Leon G. Feld, Yevhen Shynkarenko, Franziska Krieg, Gabriele Raino, Maksym V. Kovalenko
Summary: The study explores CsPbBr3 nanocrystals as probes in single-molecule localization microscopy, introducing a new workflow that efficiently identifies false localizations to achieve precise localization with subwavelength spatial resolution. Through Monte-Carlo simulations, the optimal quantum dot blinking dynamics for dSTORM applications is identified, leveraging the benefits of higher absorption cross-sections and enhanced photostability to push the boundaries of quantum dot super-resolution microscopy towards sub-nanometer spatial resolution.
ADVANCED OPTICAL MATERIALS
(2021)
