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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)
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Engineering, Electrical & Electronic
Hala Mossad Hassan, Nihal F. F. Areed, H. A. El-Mikati, Mohamed Farhat O. Hameed, S. S. A. Obayya
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OPTICAL AND QUANTUM ELECTRONICS
(2022)
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Materials Science, Multidisciplinary
Huali Zhu, Yong Zhang, Longfang Ye, Yukun Li, Yuehang Xu, Ruimin Xu
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RESULTS IN PHYSICS
(2021)
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Materials Science, Multidisciplinary
Yang Shen, Guanchu Wang, Qiushun Zou, Xiaoyi She, Da Cai, Chongjun Jin
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ADVANCED OPTICAL MATERIALS
(2021)
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Materials Science, Multidisciplinary
Xueyang Zong, Lixia Li, Kun Yu, Yufang Liu
Summary: This study demonstrates theoretically the active role of two-dimensional metallic photonic crystals (PhCs) as hybrid plasmonic-photonic lattices in light-matter interaction. By coupling optical waveguides with periodically arranged metallic nanodisks, the formation of waveguide-plasmon polaritons is achieved, showing strong coupling between waveguide-plasmon modes and excitons in WS2 at room temperature. Control over mode composition and coupling strength between polaritons by tuning lattice geometry reveals the LSPR-mediated energy transfer process, contributing to fundamental understanding and potential practical applications.
RESULTS IN PHYSICS
(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.
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Chemistry, Multidisciplinary
Xinghui Liu, Mengfei Xue, Jianing Chen
Summary: An on-chip integrated mid-infrared Fabry-Perot polariton resonator with broadband optical response and multi-field tunability has been achieved using surface plasmons in InAs TSL nanowires. The F-P plasmonic resonance of the nanowires was studied using a scattering-type near-field optical microscope and nano Fourier transform infrared spectroscopy. The Q factor of the resonances was found to be 5-10, indicating their potential for integrated nanophotonic circuits.
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Chemistry, Multidisciplinary
Vaibhav Gupta, Swagato Sarkar, Olha Aftenieva, Takuya Tsuda, Labeesh Kumar, Daniel Schletz, Johannes Schultz, Anton Kiriy, Andreas Fery, Nicolas Vogel, Tobias A. F. Koenig
Summary: Imprint lithography, a combination of interference lithography and nanosphere imprint lithography, is an effective and direct method for patterning nanostructures on various substrates. This technique allows for the fabrication of nanodevices with high yield and quality, marking a milestone for large-scale implementation in optoelectronic devices.
ADVANCED FUNCTIONAL MATERIALS
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Chemistry, Multidisciplinary
Yuanhai Lin, Deqing Che, Wenjie Hao, Yifei Dong, Heng Guo, Junsheng Wang, Xinping Zhang
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Physics, Fluids & Plasmas
Mingxiang Gao, Baojun Wang, Bin Guo
Summary: The properties of surface magnetoplasmon polaritons (SMPPs) in a symmetric structure are investigated. The external magnetic field, collision frequency of 2DEG, dielectric constant, and thin film thickness greatly influence the features and propagation length of SMPPs. The symmetry of the physical geometry preserves the symmetry of the dispersion relations of SMPPs, and SMPPs in the symmetric configuration have a longer lifetime than those in the asymmetric configuration.
PLASMA SCIENCE & TECHNOLOGY
(2023)
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Optics
Jialin Chen, Hongsheng Chen, Xiao Lin
Summary: This study theoretically investigates the transition radiation of swift electrons crossing a monolayer graphene using full Maxwell equations. The excitation of photons and graphene plasmons is found to favor different particle velocities, with higher velocities leading to better directivity and intensity for photons, and lower velocities enabling efficient excitation of graphene plasmons across a wider frequency range. The interaction between swift charged particles and 2D materials or van der Waals heterostructures shows promise for the design of terahertz on-chip radiation sources.
Article
Physics, Applied
Xuewei Zhang, Shaobin Liu, Kun Liao, Jian Lou
Summary: In this paper, a novel ultra-wideband high-efficiency bandpass filter based on a surface plasmonic waveguide (SPW) is proposed. By using glide symmetry technology, the filter achieves higher propagation constant and efficient transmission. A prototype has been manufactured and measured, showing good agreement with simulations.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2022)
Article
Optics
Jincheng Wang, Hengli Feng, Jingyu Zhang, Chang Liu, Zuoxin Zhang, Dongchao Fang, Lehui Wang, Yang Gao
Summary: This paper proposes a bilateral asymmetric equilateral triangular ring (ETR) band-stop filter based on metal-insulator-metal (MIM) waveguide and investigates its transmission spectrum and electric field distribution using finite difference time domain (FDTD) and coupled mode theory (CMT) method. The results show that changing the number and position of resonant cavities can adjust the transmission characteristics of the filter. The filter has a minimum transmission of 0.1% and a sensitivity of 1149 nm/RIU, making it suitable for highly integrated optical circuits and refractive index sensors.
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Materials Science, Multidisciplinary
Marko Obradov, Zoran Jaksic, Ivana Mladenovic, Anja Bartula, Olga Jaksic
Summary: The use of MXenes as alternative plasmonic materials in freestanding planar nanocomposites that support Tamm plasmon polaritons (TPP) offers advantages such as strong light screening ability and rich modal behavior, leading to improvements in functionality, especially spectral, directional, and polarization selectivity.
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Optics
Huibo Fan, Ruijuan Chang, Arui Wang, Xinrui Chen
Summary: In this paper, we propose and analyze tunable Fano resonance based on indirect interaction between two Taiji resonators. By tailoring the propagating modes in the Taiji resonator, the number of whispering-gallery modes can be varied, leading to convenient tuning of Fano resonance lineshape. The use of monolayer graphene and UV-glue enables all-optical tuning and high-sensitivity temperature sensing, respectively.
OPTICS COMMUNICATIONS
(2023)
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Pintu Kumar, Dharmendra K. Singh, Rakesh Ranjan
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS
(2020)
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Veer Chandra, Rakesh Ranjan
OPTICAL AND QUANTUM ELECTRONICS
(2020)
Article
Optics
Umar Farooque, Dharmendra K. Singh, Rakesh Ranjan
OPTICAL ENGINEERING
(2020)
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Chemistry, Physical
Veer Chandra, Rakesh Ranjan
Summary: The popularity of nanophotonic waveguides is increasing due to their importance in optical interconnects and their wide acceptance in applications such as sensors and filters. Furthermore, the use of over-cladding techniques can improve the dispersion characteristics of nanophotonic waveguides with reduced height.
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Chemistry, Physical
Pintu Kumar, D. K. Singh, Rakesh Ranjan
Summary: This study investigates the optical properties of the hybrid insulator-metal-insulator plasmonic waveguide to achieve high propagation length and normalized intensity at 1.55 μm. By optimizing the waveguide dimensions and structure, the study successfully obtained superior performance, which is beneficial for applications like biosensing and optical manipulations.
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
Telecommunications
Amit Kumar Singh, Rakesh Ranjan
Summary: The paper discusses the impact of primary user channel availability on secondary users in CRN, and explores the use of neural network training to reduce prediction errors and improve SU throughput.
WIRELESS PERSONAL COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Santosh Kumar, Swati Rajput, Vishal Kaushik, Prem Babu, Dev Rahul Mishra, Rakesh Ranjan, Mukesh Kumar
Summary: This article proposes a method of coupling hybrid plasmonic mode into a silicon tip, achieving a waveguide structure with moderate field enhancement and long-range propagation through lateral and vertical coupling. The proposed waveguide structures have broadband propagation capabilities and long propagation lengths, making them ideal for various nanophotonic devices.
Article
Optics
Pintu Kumar, Dharmendra Kumar Singh, Rakesh Ranjan
OPTOELECTRONICS LETTERS
(2020)
Article
Optics
Kumar Dablu, Ranjan Rakesh
OPTOELECTRONICS LETTERS
(2020)
Proceedings Paper
Engineering, Electrical & Electronic
Umar Farooque, Dharmendra Kumar Singh, Rakesh Ranjan
PROCEEDINGS OF THE 2019 IEEE REGION 10 CONFERENCE (TENCON 2019): TECHNOLOGY, KNOWLEDGE, AND SOCIETY
(2019)
Proceedings Paper
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Veer Chandra, Rakesh Ranjan
2019 URSI ASIA-PACIFIC RADIO SCIENCE CONFERENCE (AP-RASC)
(2019)