Article
Physics, Applied
Pei Hang He, Yi Fan, Hao Chi Zhang, Le Peng Zhang, Min Tang, Meini Wang, Ling Yun Niu, Wenxuan Tang, Tie Jun Cui
Summary: This work achieves frequency-dependent characteristic impedance extraction and compact excitation of spoof surface plasmon polariton (SSPP) waveguides. By investigating the near-field distribution of a typical SSPP waveguide, a special excitation position is found, allowing for transition between microstrip and SSPP waveguides in desired frequency bands. The proposed method offers a more compact size and better transition performance compared to conventional strategies, and is not impacted by internal discontinuities and local couplings.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2021)
Article
Chemistry, Multidisciplinary
Anton V. Dyshlyuk, Alexey Proskurin, Andrey A. Bogdanov, Oleg B. Vitrik
Summary: The unusual optical properties of laser-ablated metal surfaces are caused by the excitation of local plasmon resonances in nano- and microstructures, as well as the interaction of these structures through surface plasmon polariton waves. The analytical solution to the problem of surface plasmon polariton excitation is important, and it can be solved by considering the surface geometry as a superposition of harmonic Fourier components. This study demonstrates that the problem can be solved using a method for calculating guided-mode amplitudes in the presence of current sources.
Article
Engineering, Electrical & Electronic
Muhammed Abdullah Unutmaz, Gulay Ozsahin, Mehmet Unlu
Summary: This paper presents an optimization study for terahertz Spoof Surface Plasmon Polariton waveguides (THz-SSPP WGs) for the first time, achieving record-low insertion loss and record-high figure of merit (FoM). The optimized THz-SSPP WGs outperform state-of-the-art planar terahertz waveguides, demonstrating the potential of planar SSPP WGs for the terahertz band.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2021)
Article
Optics
Zeyang Liu, Weijie Feng, Zhanhua Huang, L. Jay Guo
Summary: The paper introduces a generalized Kretschmann configuration that uses a metagrating to replace the prism, achieving polarization-controlled efficient and unidirectional surface plasmon polariton (SPP) excitation. The dielectric phase gradient metagrating on the top surface of a silica substrate deflects incident light, which then launches SPP waves through momentum matching on the metal film on the bottom surface. The design flexibility and tunability to efficiently control SPPs suggest potential for diverse applications in integrated optics and SPP devices.
Article
Engineering, Electrical & Electronic
Yilmaz Cinar, Salih Serdar Yildirim, Gulay Ozsahin, Muhammed Abdullah Unutmaz, Mehmet Unlu
Summary: The article introduces a circuit model for spoof surface plasmon polariton (sSPP) waveguides, successfully integrated into a transition circuit for compatibility with conventional coplanar waveguides. Experimental results demonstrate low average and maximum phase errors at 0.25-0.3 THz, facilitating the design of sSPP waveguides and terahertz integrated circuits.
IEEE TRANSACTIONS ON TERAHERTZ SCIENCE AND TECHNOLOGY
(2021)
Article
Engineering, Electrical & Electronic
Muhammed Abdullah Unutmaz, Gulay Ozsahin, Tuna Abacilar, Mehmet Unlu
Summary: This article presents the investigation and design of high-performance transitions from coplanar waveguide to single-conductor, corrugated waveguides for terahertz spoof surface plasmon polariton waveguides. A novel methodology is proposed to examine the relationship between guided wavenumber and momentum matching, allowing for the design of low-loss transition circuits. The measurement results show significant improvement in insertion losses compared to previous studies.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2022)
Article
Nanoscience & Nanotechnology
Vamsi Borra, Srikanth Itapu, Victor G. Karpov, Daniel G. Georgiev
Summary: The study reveals that laser beam irradiation can trigger surface plasmon polariton excitations on tin film surfaces, resulting in the formation of small raised grains. These features are attributed to field-induced nucleation caused by the strong electric field related to SPP. The findings may have implications for accelerated-life testing of tin whisker growth reliability and applications to nanoparticle nucleation.
SCRIPTA MATERIALIA
(2022)
Article
Engineering, Electrical & Electronic
Longfang Ye, Yao Chen, Zhengyi Wang, Chunhui Zhu, Jianliang Zhuo, Qing Huo Liu
Summary: A new type of spoof surface plasmon polariton waveguides and notch filters have been demonstrated using ultra-thin metallic meander-strip units and split ring resonators for high-efficiency microwave transmission and notch rejection. Experimental results show that the proposed design has excellent performance with electronically adjustable frequencies, offering a wide range of potential applications in microwave integrated plasmon circuits and programmable systems.
IEEE PHOTONICS TECHNOLOGY LETTERS
(2021)
Article
Engineering, Electrical & Electronic
Chuan-Min Wang, Weiqiang Xu, Lin Li, Haiwen Liu, Ye Kuang
Summary: To reduce transversal width, a new spoof surface plasmon polariton (SSPP) based on coplanar waveguide (CPW) is proposed. By using capacitor loading technique to control the dispersion characteristics and electromagnetic field, the proposed capacitor-loaded CPW SSPP exhibit a similar transmission performance to conventional unloaded CPW SSPP TL, but with a transversal width reduction up to 64%. On this basis, another modified capacitor-loaded CPW SSPP is presented by changing the groove shape from strip-shape to T-shape. Results validate that the transversal width of the T-shape CPW SSPP is only 24% to that of conventional unloaded CPW SSPP. Besides, much more tighter field confinement is achieved for both the two proposed CPW SSPPs. Such results are of great significance to reduce the size of plasmon devices in microwave regime.
IEEE PHOTONICS TECHNOLOGY LETTERS
(2023)
Article
Optics
A. A. Saharian, L. Sh. Grigoryan, A. S. Kotanjyan, H. F. Khachatryan
Summary: This study investigates the emission of surface polaritons (SPs) by a charged particle moving inside a dielectric cylinder parallel to its axis. It is found that the SP modes exist for the positive dielectric function of the cylinder material. The electromagnetic fields corresponding to SPs are determined and their properties are analyzed. The relativistic effects can significantly increase the radiated energy and affect the confinement region and frequency range of the radiated SPs.
Article
Materials Science, Multidisciplinary
Xiaoqiang Su, Lijuan Dong, Louhong Wen, Yuzhu Liu, Yanfeng Li, Chunmei Ouyang, Quan Xu, Xueqian Zhang, Yunlong Shi, Jiaguang Han
Summary: In this study, a novel strategy is proposed to manipulate the switching and slow wave features of spoof surface plasmon polaritons (SPPs) based on plasmon-induced transparency (PIT) spectral responses. The strategy involves loading a combined module of split square-ring resonators and electric-LC resonators into the SPP waveguide to achieve a high modulation contrast in SPP transmission at the PIT peak frequency.
RESULTS IN PHYSICS
(2022)
Article
Nanoscience & Nanotechnology
Runcheng Liu, Zhipeng Zha, Muhammad Shafi, Can Li, Wen Yang, Shicai Xu, Mei Liu, Shouzhen Jiang
Summary: The proposed HMM/Ag NPs platform allows for the excitation and utilization of BPP for SERS applications, with the Ag NPs providing strong plasmonic properties and acting as a light-matter coupler. Additionally, the platform successfully decouples BPP into localized surface plasmon using the nano antenna structure of Ag NPs, showing potential for surface-enhanced spectroscopy applications.
Article
Nanoscience & Nanotechnology
Kevin T. Crampton, Alan G. Joly, Patrick Z. El-Khoury
Summary: The research demonstrates control over the spatial and temporal properties of surface plasmon polaritons (SPPs) launched from nanohole arrays in silver. The characteristics of the optical grating can be tuned through various nanohole array parameters, and temporal interference of SPPs with different central wavelengths can be achieved using multiperiodic arrays (MPAs).
Article
Nanoscience & Nanotechnology
Kevin T. Crampton, Alan G. Joly, Patrick Z. El-Khoury
Summary: The study demonstrates control over the spatial and temporal properties of surface plasmon polaritons (SPPs) launched from nanohole arrays in silver, showing that SPPs launched from multiple arrays can interfere at defined spatial positions to form an all-SPP periodic nano-optical grating that evolves as the SPPs propagate. The spatio-temporal characteristics of the optical grating can be tuned through various nanohole array parameters, and the temporal interference of SPPs with different central wavelengths can be tailored through multiperiodic arrays (MPAs) consisting of arrays with different pitches placed adjacent to one another. Temporal interference serves as an encoded signal, where frequency components can be controlled by array properties.
Article
Multidisciplinary Sciences
Yaniv Kurman, Raphael Dahan, Hanan Herzig Sheinfux, Kangpeng Wang, Michael Yannai, Yuval Adiv, Ori Reinhardt, Luiz H. G. Tizei, Steffi Y. Woo, Jiahan Li, James H. Edgar, Mathieu Kociak, Frank H. L. Koppens, Ido Kaminer
Summary: Investigating the dynamic phenomena of 2D polaritons in 2D materials requires the use of a ultrafast transmission electron microscope with simultaneous spatial and temporal imaging capabilities, which can reveal unknown coherent optical phenomena such as splitting of multibranch wave packets, wave packet deceleration, and acceleration.
Article
Chemistry, Multidisciplinary
Paul C. V. Thrane, Chao Meng, Fei Ding, Sergey I. Bozhevolnyi
Summary: Tunable metasurfaces combined with microelectromechanical systems (MEMS) and gap-surface plasmon (GSP) offer high modulation efficiency, broadband operation, and fast response. A comparison between tunable metasurfaces operating in GSP and Fabry-Perot (FP) regions shows that GSP region provides larger operation bandwidth, while FP region offers relaxed assembly requirements and operation tolerances.
Article
Nanoscience & Nanotechnology
Soren Im Sande, Sergey I. Bozhevolnyi, Fei Ding
Summary: In this work, single-celled metasurfaces are designed and experimentally demonstrated to achieve broadband and spin-multiplexed holograms. The phase modulation relies on the geometric phase provided by a high-performance nanoscale half-wave plate operating in reflection. Four different multiplexing strategies are implemented and systematically assessed in terms of background levels, image fidelities, hologram efficiencies, and polarization conversion ratios.
Article
Physics, Multidisciplinary
S. Bozhevolnyi, I. M. Suslov
Summary: Localization of electrons in 1D disordered systems is often described using the random phase approximation, assuming uniform distributions of phase f and Φ in the transfer matrix. However, in the general case, the random phase approximation is not valid and the evolution equations are written in terms of the Landauer resistance Φ and the combined phases Φ = Φ - f and Φ = Φ + f. The distribution of phase Φ exhibits an unusual phase transition at the point Φ0.
Review
Materials Science, Multidisciplinary
Yinhui Kan, Sergey I. I. Bozhevolnyi
Summary: Spontaneous photon emission can be significantly modified by using quantum emitters in nanostructured environment, resulting in enhanced emission rates and directed single-photon beams with well-defined polarization states. Recent advances in single-photon generation engineering demonstrate important possibilities for quantum information technologies. Optical metasurfaces offer complete control over optical fields and have the potential to shape single-photon emission. This article provides an overview of recent progress in utilizing quantum optical metasurfaces for enhanced and directed emission of single photons with specified polarization properties.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Lili Gui, Chuanshuo Wang, Fei Ding, Hao Chen, Xiaosheng Xiao, Sergey I. Bozhevolnyi, Xiaoguang Zhang, Kun Xu
Summary: In this study, a wavelength-tunable vortex fiber laser assisted by a metasurface is proposed and demonstrated. The laser can directly generate orbital angular momentum (OAM) beams with customizable topological charges. By combining a broadband gap-surface plasmon metasurface and an intracavity tunable filter, the laser's center wavelength can be continuously tuned from 1015 nm to 1075 nm, which is nearly twice the range of other reported vortex fiber lasers.
Article
Nanoscience & Nanotechnology
Christopher Damgaard-Carstensen, Sergey I. Bozhevolnyi
Summary: In this work, electro-optically controlled optical metasurfaces for reflection modulation are demonstrated. By identifying a suitable low-loss waveguide mode and exploiting its resonant excitation, the modulation of reflected light power with superior characteristics is achieved compared to previous research. The electro-optic Pockels effect in a 300 nm-thick lithium niobate (LN) film is utilized to realize fast and efficient light modulation.
Article
Chemistry, Multidisciplinary
Yinhui Kan, Xujing Liu, Shailesh Kumar, Sergey I. Bozhevolnyi
Summary: This paper develops a holography-based approach to flexibly design QE-coupled metasurfaces on-chip, which generate far-field quantum emission with specific spin and orbital angular momenta. The method enables multichannel quantum emission with multiple degrees of freedoms, providing a powerful platform for quantum nanophotonics.
Article
Chemistry, Multidisciplinary
Xujing Liu, Yinhui Kan, Shailesh Kumar, Liudmilla F. Kulikova, Valery A. Davydov, Viatcheslav N. Agafonov, Changying Zhao, Sergey I. Bozhevolnyi
Summary: This article introduces a new design for ultracompact single-photon sources, which can generate linearly polarized vortex beams using quantum emitter-coupled metasurfaces. The authors successfully demonstrate on-chip single-photon generation and realize the multiplexing of different topological charges of orthogonal linearly polarized single photons through multiple channels, demonstrating their entanglement. This research suggests that ultracompact quantum emitter-coupled metasurfaces have the potential to be a new quantum optics platform for chip-integrated high-dimensional single-photon sources.
ADVANCED MATERIALS
(2023)
Article
Physics, Multidisciplinary
Henrik Parsamyan, Torgom Yezekyan, Khachatur Nerkararyan, Sergey Bozhevolnyi
Summary: Scanning near-field optical microscopy (SNOM) is a powerful optical technique for visualizing surface nanostructures and fields beyond the diffraction limit. The resolution of SNOM is theoretically unlimited but limited in practice due to background light scattering. This article proposes using a "dark" SNOM probe to suppress background scattering and improve sensitivity and resolution for nano-optical characterization.
NEW JOURNAL OF PHYSICS
(2023)
Article
Energy & Fuels
Anisha Chirumamilla, Fei Ding, Yuanqing Yang, Murugan Senthil Mani Rajan, Sergey I. Bozhevolnyi, Duncan S. Sutherland, Kjeld Pedersen, Manohar Chirumamilla
Summary: In this study, a simple large-area nanofabrication method was proposed to create tungsten nanodisc spectrally-selective emitters with high emissivity and thermal stability. The method showed invariance to changes in polarization and incidence angles. This research is significant in advancing the implementation of photonic/plasmonic thermal emitters in high-temperature stable and efficient thermal energy harvesting systems.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2023)
Article
Multidisciplinary Sciences
Danylo Komisar, Shailesh Kumar, Yinhui Kan, Chao Meng, Liudmila F. Kulikova, Valery A. Davydov, Viatcheslav N. Agafonov, Sergey I. Bozhevolnyi
Summary: This article presents a method for channeling and controlling the emission direction and polarization characteristics of single photons using plasmonic holographic metasurfaces. Experimental results demonstrate the efficient generation of two well-collimated single-photon beams on a chip, with independent direction and polarization control for each channel by coupling quantum emitters to plasmonic holographic metasurfaces.
NATURE COMMUNICATIONS
(2023)
Article
Multidisciplinary Sciences
Xujing Liu, Yinhui Kan, Shailesh Kumar, Danylo Komisar, Changying Zhao, Sergey I. Bozhevolnyi
Summary: By using specially designed anisotropic nanodimers, we achieved nonradiative coupling between a quantum emitter and a surface plasmon polariton, allowing the generation of single photons with spin and orbital angular momenta encoded. We demonstrated the on-chip generation of well-collimated, circularly polarized, and high purity single-mode vortex beams with different topological charges and high single-photon purity. This approach can be extended to produce multiple single-photon radiation channels with different polarizations, enabling advanced quantum photonic technologies.
Article
Quantum Science & Technology
Yinhui Kan, Sergey I. Bozhevolnyi, Shailesh Kumar
Summary: Nanoantennas and nanocavities are widely used for quantum emission manipulation, and this study explores the use of silver nanocube dimers on silver substrates to achieve large Purcell enhancement. The relationship between the size and separation gap of the nanocube dimers and the resulting enhancement is investigated, with a maximum enhancement of 6.4 x 106 observed. The experimental realization of large Purcell enhancements is demonstrated using atomic force microscopy and prefabricated dielectric brick dimers, providing a promising method for designing and realizing single photon sources.
ADVANCED QUANTUM TECHNOLOGIES
(2023)
Article
Nanoscience & Nanotechnology
Saskia Fiedler, Sergii Morozov, Danylo Komisar, Evgeny A. A. Ekimov, Liudmila F. F. Kulikova, Valery A. A. Davydov, Viatcheslav N. N. Agafonov, Shailesh Kumar, Christian Wolff, Sergey I. I. Bozhevolnyi, N. Asger Mortensen
Summary: Impurity-vacancy centers in diamond provide a class of robust photon sources with versatile quantum properties. The ensembles of color centers have tunable photon-emission statistics and their emission properties can be controlled by different types of excitation. Electron-beam excitation can synchronize the emitters' excitation and control the second-order correlation function g(2)(0), as confirmed by experimental results in this letter. Such a photon source based on an ensemble of few color centers in a diamond crystal offers a highly tunable platform for room temperature informational technologies.
Article
Nanoscience & Nanotechnology
Torgom Yezekyan, Vladimir A. Zenin, Martin Thomaschewski, Radu Malureanu, Sergey I. Bozhevolnyi
Summary: The demand for broadband near-infrared photodetections with high responsivity is increasing, but its realization remains a technological challenge. We demonstrate a simple design approach to fabricate a Ge photodetector that significantly enhances absorption and detector responsivity for a wide range of wavelengths. Our approach utilizes Ge disks of different diameters, resulting in nearly two orders of magnitude improvement compared to unstructured Ge photodetectors.
