Article
Materials Science, Multidisciplinary
Xueqing He, Tigang Ning, Li Pei, Jingjing Zheng, Jing Li, Jianshuai Wang
Summary: In this paper, a novel graphene-dielectric hybrid plasmonic waveguide (GDHPW) is proposed, with ultra-small mode area and long propagation length achieved by tuning key structural parameters and chemical potential. Low crosstalk properties between two GDHPWs on a substrate are analyzed, and alternative modified structures with optical confinement performances are proposed, serving as fundamental building blocks for various tunable high-density integrated photonic components and devices.
RESULTS IN PHYSICS
(2021)
Article
Engineering, Electrical & Electronic
Santosh Kumar, Ashutosh Kumar, Rahul Dev Mishra, Prem Babu, Suresh Kumar Pandey, Manoj K. Pal, Mukesh Kumar
Summary: This article proposes a nanophotonic ring resonator based on a slotted hybrid plasmonic waveguide (HPW) for resonance-enhanced sensing. The slotted ring structure provides a propagation length of over 2.5 mm with subwavelength confinement at 1.55 μm wavelength, as well as broadband propagation of HP in the range of 1.3-1.6 μm. By changing the analyte refractive index, a 29.6-nm shift in the transmission spectra is observed, and the sensitivity for detecting polluted water is reported to be 1609 nm/RIU. The proposed slotted waveguide structure has potential applications in nanophotonic devices for biochemical sensing and large-scale photonic integration.
IEEE SENSORS JOURNAL
(2023)
Article
Engineering, Electrical & Electronic
Santosh Kumar, Ashutosh Kumar, Rahul Dev Mishra, Prem Babu, Suresh Kumar Pandey, Manoj K. Pal, Mukesh Kumar
Summary: Proposed a nanophotonic ring resonator based on a slotted hybrid plasmonic waveguide, allowing for resonance-enhanced sensing and strong light-analyte interaction at the subwavelength scale. The structure exhibited a propagation length of over 2.5 mm and subwavelength confinement at a wavelength of 1.55 μm. By changing the refractive index of the analyte, a 29.6-nm shift in the transmission spectra was observed, with a reported sensitivity for detecting polluted water approximately four times higher than a dielectric slotted ring resonator and eight times higher than a ring resonator with a ridge structure. This slotted waveguide structure has potential applications in nanophotonic devices, including biochemical sensing and large-scale photonic integration.
IEEE SENSORS JOURNAL
(2023)
Article
Chemistry, Analytical
Yindi Wang, Hongxia Liu, Shulong Wang, Ming Cai
Summary: This paper presents a hybrid waveguide based on metal surface plasmon polaritons (SPPs) at 1550 nm, which achieves excellent waveguide characteristics and has great application potential in optoelectronic integrated circuits.
Editorial Material
Optics
Ann-Katrin U. Michel
Summary: Plasmonic structures made of a semiconductor-insulator-metal hybrid offer efficient pathways for second-harmonic and sum-frequency generation in sub-micrometer structures, potentially enhancing on-chip integrated plasmonic circuits.
LIGHT-SCIENCE & APPLICATIONS
(2021)
Article
Crystallography
Qian Zhang, Jinbin Pan, Shulong Wang, Yongqian Du, Jieyu Wu
Summary: A triangle hybrid plasmonic waveguide is introduced, which can achieve longer propagation length and relatively deep subwavelength mode confinement. The analysis shows that this waveguide is stable and performs excellently, which is significant for manipulating light waves at sub-wavelength dimensions and expanding the application fields of optical devices.
Article
Chemistry, Physical
Tarun Sharma, Jiaqi Wang, Zhenzhou Cheng, Kyoungsik Yu, Pratisha Gangwar, Varun Kumar, Dhirendra Sharma, Brajesh Kumar Kaushik
Summary: In this paper, a hybrid plasmonic waveguide (HPW) with low optical loss, variable nonlinearity, and ultralow dispersion is proposed. Through analysis and comparison of different light confinement regions, the optimized HPW structure shows excellent performance and potential applications.
Article
Engineering, Electrical & Electronic
Santosh Kumar Sahu, Samyuktha K. Reddy, Mandeep Singh, Eugene Avrutin
Summary: In this work, a nanoscale 3D hybrid plasmonic waveguide (HPWG) refractive index-cum-temperature sensor was proposed and simulated. It can be used for sensing the refractive index and temperature of aqueous analytes. Numerical simulations were performed to predict the sensitivity of the device, and the sensor was shown to be suitable for next-generation on-chip biochemical sensing applications.
IEEE PHOTONICS TECHNOLOGY LETTERS
(2022)
Article
Chemistry, Physical
Samyuktha K. Reddy, Mandeep Singh
Summary: By simulating a nanoscale tapered plasmonic waveguide, researchers have demonstrated its potential for nanophotonic integrated circuits with better mode area, electric field confinement, and long propagation length. This hybrid plasmonic waveguide is a feasible choice for future on-chip nanophotonic devices.
Article
Engineering, Electrical & Electronic
Timothy J. Palinski, Brian E. Vyhnalek, Gary W. Hunter, Amogha Tadimety, John X. J. Zhang
Summary: This study demonstrates a platform for the active switching of hybrid plasmonic-photonic Fano resonances, achieving on/off switching of narrow Fano resonance transparency windows with high contrast and tunability across a wide spectral range by modulating refractive index. The structure includes gold nanogratings sandwiched between two dielectric thin films, and controlling the interaction of substrate and superstrate modes through refractive index tuning enables both spectral and spatial selectivity.
IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS
(2021)
Article
Nanoscience & Nanotechnology
Tao Cui, Yan Shen, Ao Cheng, Runze Zhan, Zebo Zheng, Bo Tian, Jia Shi, Yanlin Ke, Lei Shao, Huanjun Chen, Shaozhi Deng
Summary: This study successfully prepared a high-quality single-crystalline Mo microrod waveguide structure and utilized subwavelength gratings to excite the surface plasmon polariton behavior of Mo. The optimized Mo microrod exhibited highly efficient waveguide performance.
Article
Engineering, Electrical & Electronic
Santosh Kumar, Pintu Kumar, Rakesh Ranjan
Summary: A triangular hybrid metal-insulator-metal plasmonic waveguide with low propagation loss at deep subwavelength is proposed. The optical properties of the waveguide, including normalized effective mode area and propagation length, are analyzed. The waveguide structure can provide remarkably low propagation loss and is suitable for various nano-photonic components.
IEEE TRANSACTIONS ON NANOTECHNOLOGY
(2022)
Article
Chemistry, Physical
Akbar Asadi, Mohammad Reza Jafari, Mehran Shahmansouri
Summary: This paper introduces a symmetric graphene dielectric hybrid plasmonic waveguide structure with ultra-deep subwavelength confinement in the mid-infrared spectrum. By adjusting the waveguide geometry dimensions and graphene Fermi energy, excellent mode characteristics can be achieved, while the proposed structure exhibits very small crosstalk effects.
Article
Nanoscience & Nanotechnology
Pavel A. Dmitriev, Emmanuel Lassalle, Lu Ding, Zhenying Pan, Darren C. J. Neo, Vytautas Valuckas, Ramon Paniagua-Dominguez, Joel K. W. Yang, Hilmi Volkan Demir, Arseniy I. Kuznetsov
Summary: In this study, we propose and demonstrate single subwavelength hybrid dielectric-plasmonic optical nanoantennas that are coupled to localized quantum dot emitters and serve as efficient and bright unidirectional photon sources. The structure supports both antenna mode and gap mode resonances, and the resonance spectral positions can be controlled by tuning geometrical parameters. Experimental results show fluorescence enhancement factors up to 654x folds, mainly due to high radiative efficiencies, and directional emission of the photoluminescence into a cone of +/- 17 degrees normal to the sample plane. We believe this solution is viable and relevant for the next generation of light-emitting devices.
Article
Optics
Mohammad Salahandish, Ali Pourziad, Reza Ghahramani Bigbaghlou
Summary: This paper presents a hybrid Metal-Insulator-Metal (MIM) plasmonic waveguide with periodically placed triangular grooves along the broad wall. The waveguide is analyzed and simulated in a 3-D model, and the results show that it operates as a suitable filter with high transmission amplitude in the Hz operational bandwidth. It has a smaller size and fewer grooves compared to previous designs, making it more compact and efficient.