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
Optics
Jingjing Hong, Xingping Zhou, Rui Zhuang, Wei Peng, Jiawei Liu, Aiping Liu, Qin Wang
Summary: A stable and manipulatable nanoparticle trapping method called Counter-Surface Plasmon Polariton Lens (CSPPL) is proposed in this paper. By adjusting the incident angle and phase difference, the optical potential depth and center position on CSPPL can be accurately controlled. This study promotes the development of integrated optical tweezers.
CHINESE OPTICS LETTERS
(2022)
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
Materials Science, Multidisciplinary
M. J. Maleki, M. Soroosh, G. Akbarizadeh
Summary: In this study, a new structure based on surface plasmon polariton propagation is introduced for decode operation in optical circuits. A graphene monolayer is used for terahertz wave transmission, while a silicon ridge helps achieve high confinement. The designed structure shows low loss and long coupling length, controlled by adjusting the graphene chemical potential.
DIAMOND AND RELATED MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Ernesta Buzavaite-Verteliene, Vilius Vertelis, Zigmas Balevicius
Summary: Total internal reflection ellipsometry was used to excite and study the hybrid Tamm plasmon-surface plasmon polaritons mode, with a simple optical methodology proposed using optical filters to cut the incident light spectra. The experimental studies showed that strong coupling in the investigated system is enough to excite only one component of the hybrid excitation, leading to similar dispersion relations as when excited with a whole spectrum. The obtained Rabi splitting for the hybrid TPP and SPP modes in the multilayered structure was approximately 105 meV.
Article
Nanoscience & Nanotechnology
Naoki Ichiji, Yuka Otake, Atsushi Kubo
Summary: The spatiotemporal dynamics of a surface plasmon polariton wave packet interacting with a plasmonic nanocavity on a metal surface are studied. It is found that only the spectral component matching a specific energy level can continue propagating on the metal surface, leading to a spatial peak shift in the wave packet.
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
Optics
P. Moroshkin, J. Plumitallo, T. Ochiai, R. Osgood III, Jimmy Xu
Summary: The optical rectification effect is observed in periodically structured metal films with broken inversion symmetry. The finite width of the metasurface and the proximity of its edges contribute to the rectification current, which is enhanced at surface plasmon polariton resonances. Position-and angle-resolved measurements show that this mechanism is more efficient than other symmetry-breaking mechanisms. The existing theory of optical rectification partially explains the observed phenomena.
Article
Chemistry, Analytical
Yifei Zhang, Yu Xia, Haotian Ling, Jinhua Zhang, Ke Li, Cunzhong Yuan, Hanlin Ma, Wenjian Huang, Qiangpu Wang, Xuantao Su
Summary: This paper presents a sensitive spoof SPP biosensor utilizing split ring resonators (SRRs) for ovarian cancer diagnosis. The biosensor is highly sensitive in detecting permittivity differences and successfully detects different types of ovarian cancer tissues. The proposed device offers a fast, sensitive, and label-free detection approach for ovarian cancers.
SENSORS AND ACTUATORS B-CHEMICAL
(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
Chemistry, Physical
M. Umair, A. Ghaffar, Majeed A. S. Alkanhal, Y. Khan, Ali. H. Alqahtani
Summary: This paper presents a numerical study of surface plasmon polaritons in a chiroplasma-graphene planar structure. The Kobo formulation is used to model graphene's conductivity, and specific boundary conditions are employed to obtain the dispersion relation for the proposed waveguide structure. Electromagnetic wave theory is applied to solve the numerical problem. The study focuses on the influence of chiroplasma features on the effective mode index, and concludes that chirality strongly affects the attenuation phase constant against incident wave frequency. Additionally, the normalized field distributions of the graphene medium are presented, highlighting the potential of graphene as a compact nanophotonic circuit material.
Article
Multidisciplinary Sciences
Colin D. Marquis, Lindze M. McCarley, Amy L. Pollock, Acamaro S. Cutcher, Max T. Cannella, Tierra L. Smith, Michael B. Larsen, Brandon M. Peden, Brad L. Johnson, Janelle M. Leger
Summary: This paper demonstrates a technique for direct reflectance excitation and detection of forbidden guided-wave plasmon polariton modes (GW-PPMs). By replacing the air gap used in traditional Otto ATR with a low refractive index polymer coupling layer, GW-PPMs can be excited. This method has the potential to significantly enhance performance in many critical technologies.
Article
Nanoscience & Nanotechnology
Maedeh Aslani, Razieh Talebi, Daryoosh Vashaee
Summary: In this study, ion-exchanged optical waveguides were fabricated based on low-cost soda-lime glasses embedded with silver ions and nanoparticles. The ion-exchanged glasses showed low-loss properties and were characterized using various techniques. It was found that using an Ag-AgCl layer on the waveguide was an effective method for coupling light and measuring its refractive index. This combination of techniques served as an excellent platform for integrated optical circuits.
ACS APPLIED NANO MATERIALS
(2022)
Article
Engineering, Electrical & Electronic
Zijian Cui, Yue Wang, Lisha Yue, Xiaoguang Zhao, Dachi Zhang, Zhenyu Yao, Xiaoju Zhang, Lei Hou, Xin Zhang
Summary: A strong absorption coupling effect between the SSPP modes and the intrinsic modes in a novel terahertz metamaterial has been investigated, showing a splitting phenomenon that can be controlled by directionally varying the lattice constant. This coupling process mediated by the SSPP mode can lead to resonances with ultra-high quality factors, offering potential applications in sensing and detection.
IEEE TRANSACTIONS ON TERAHERTZ SCIENCE AND TECHNOLOGY
(2021)
Article
Optics
D. Chatzitheocharis, D. Ketzaki, G. Patsamanis, E. Chatzianagnostou, K. Vyrsokinos
Summary: This paper presents a thorough simulation-based analysis for the design of multi-step couplers bridging seamlessly plasmonic barium titanate oxide (BTO) ferroelectric phase shifters and thick silicon nitride (Si3N4) waveguides for the O-band. The proposed plasmonic platforms are formed by CMOS-compatible Copper (Cu) material and include hybrid plasmonic waveguides (HPW) and plasmonic metal-insulator-metal (MIM) slot waveguides. Numerical simulations are conducted to identify the optimum geometries, resulting in coupling losses of 1.75dB for the HPW geometry and 1.29dB for the MIM configuration, with confinement factors of 31.39% and 56.2%, respectively.
