Article
Engineering, Electrical & Electronic
Yazusha Sharma, Rukhsar Zafar, Sanjeev Kumar Metya, Vinay Kanungo
Summary: This study presents a Plasmonic sensor based on coupled split ring resonators, featuring dual Fano resonances, ultra-narrow line width, and high Quality factor. The sensor design shows excellent sensitivity and resolution for optical glucometer applications, as well as potential uses in chemical sensing and various biological applications.
IEEE SENSORS JOURNAL
(2021)
Article
Optics
Qiaohua Wu, Yingqiu Zhang, Desheng Qu, Chunlei Li
Summary: A metal-insulator-metal (MIM) waveguide system with a ring cavity and a semi-ring cavity is proposed. The transmission characteristics of the system are discussed using the finite element method. The sensing performance of the system is analyzed by detecting the resonance wavelength and varying the refractive index. The structure can be used as a refractive index sensor with high sensitivity and simultaneous measurement of two parameters.
Article
Materials Science, Multidisciplinary
Jianli Yu, Jiankai Zhu, Song Ye, Xiangxian Wang
Summary: A novel structure utilizing a two-dimensional circular-hole grating engraved on a gold film for ultra-wide range plasmonic refractive index sensing is proposed, demonstrating high sensitivity and stable performance. The sensor has the advantages of simple preparation and applicability in the field of biochemistry.
RESULTS IN PHYSICS
(2021)
Article
Materials Science, Multidisciplinary
Shuangshuang Wang, Huatian Hu, Xiaoze Liu, Tao Ding
Summary: Recent research has shown that the plasmonic linewidths of single gold nanoparticles can be significantly narrowed by coupling a dielectric mirror with the nanoparticles, leading to improved sensing performance. This discovery sheds light on a new mechanism for sensing nanotechnologies.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)
Article
Chemistry, Multidisciplinary
Landobasa Y. M. Tobing, Alana M. Soehartono, Aaron D. Mueller, Ken-Tye Yong, Weijun Fan, Dao Hua Zhang
Summary: Engineering the spectral lineshape of plasmonic modes through various electromagnetic couplings and mode interferences can significantly improve plasmonic sensing. A new approach is proposed to overcome the trade-off between bulk and surface sensitivities by combining near-field and far-field coupling in an intercalated 3-disk plasmonic crystal, achieving higher figure of merit and surface sensitivity. The design simplicity and high figure of merit highlight the potential of the 3-disk structure for a robust plasmonic sensing platform.
Article
Chemistry, Physical
Haseeb Ahmad Khan, Syed Waqar Shah, Adnan Daud Khan
Summary: This study investigates the electromagnetic-induced transparency (EIT) and Fano resonances in plasmonic metasurfaces composed of gold nanobars, showing high sensitivity and potential for slow light applications. By introducing multiple cavities and breaking symmetry, the coupling selection rules are relaxed and a mixture of dipole and higher order modes is achieved, leading to the emergence of EIT and Fano modes simultaneously in the nanostructure.
Article
Engineering, Electrical & Electronic
Ankit Kumar Pandey, Anuj K. Sharma
Summary: This study demonstrates the use of MoS2 as a protective layer and adsorbing medium in a metallic grating-based sensor through theoretical analysis. The sensor shows high figure of merit (FOM) values in different analyte systems and performs well in measuring CO2 gas concentration. The proposed sensor configuration opens up new possibilities for MoS2 in grating-based plasmonic gas and bio-sensors.
OPTICAL AND QUANTUM ELECTRONICS
(2022)
Article
Chemistry, Physical
Min Xi, Cui Liu, Nian Li, Shudong Zhang, Zhenyang Wang
Summary: The coupled plasmonic modes of noble metal nanoparticles, specifically the dipole-multipole coupling in asymmetric dimers of Au NRs, were systematically investigated through electromagnetic simulations. The study focused on the hybridization between different resonances and the effects of gap space and dipole orientation. It was found that the parallel aligned D-M plasmonic hybridization led to asymmetric split resonances, with different energy levels for the multipolar and dipolar resonances. The work has important implications for understanding and utilizing the D-M plasmonic hybridization system in various applications.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Materials Science, Multidisciplinary
Mohammad Ashraful Haque, Rummanur Rahad, A. K. M. Rakib, Shadman Shahriar Sharar, Rakibul Hasan Sagor
Summary: In this article, a novel plasmonic refractive index sensor based on surface plasmon polaritons is proposed and numerically investigated. The sensor consists of an octagonal cavity resonator, a square disk, silver nanodots, and two slits coupled to a metal-insulator-metal (MIM) waveguide. The proposed structure is numerically analyzed using the finite element method (FEM) in the near-IR and mid-IR spectrum. The sensor detects refractive index changes by measuring changes in resonant wavelength, and it has shown the ability to measure the quality of honey samples and detect lactose concentration in a solution.
RESULTS IN PHYSICS
(2023)
Article
Chemistry, Multidisciplinary
Nor Azura Muhammad, Zunaide Kayun, Hasyma Abu Hassan, Jeannie Hsiu Ding Wong, Kwan Hoong Ng, Muhammad Khalis Abdul Karim
Summary: This study evaluated the impact of optimized CT protocols on pediatric organ dose and image quality, finding a potential reduction in absorbed dose by up to 50% through adjustments in tube voltage, tube current, and slice collimation. No significant difference in image metrics was observed between the protocols.
APPLIED SCIENCES-BASEL
(2021)
Article
Multidisciplinary Sciences
Ferry Anggoro Ardy Nugroho, Ping Bai, Iwan Darmadi, Gabriel W. Castellanos, Joachim Fritzsche, Christoph Langhammer, Jaime Gomez Rivas, Andrea Baldi
Summary: In this study, a plasmonic metasurface based on a periodic array of Pd nanoparticles was inversely designed, resulting in a sensor with a measured hydrogen detection limit of 250 ppb, significantly improving current plasmonic hydrogen sensor capabilities.
NATURE COMMUNICATIONS
(2022)
Article
Physics, Applied
Soufyane Khattou, Yamina Rezzouk, Madiha Amrani, Mohamed El Ghafiani, El Houssaine El Boudouti, Abdelkrim Talbi, Bahram Djafari-Rouhani
Summary: This study investigates the theoretical and experimental results of Friedrich-Wintgen (FW) BICs in a photonic and plasmonic T-shaped cavity and finds that the necessary condition for BICs is proportional lengths of the horizontal guides.
PHYSICAL REVIEW APPLIED
(2023)
Article
Materials Science, Multidisciplinary
Chung-Ting Chou Chao, Yuan-Fong Chou Chau, Hai-Pang Chiang
Summary: An ultra-compact plasmonic nanostructure was proposed to achieve multiple Fano resonance (FR) modes by introducing an air path, resulting in improved sensing performance. Through numerical simulations, it was found that optimizing structural parameters can lead to high sensitivity applications for refractive index and temperature sensing in the proposed structure.
RESULTS IN PHYSICS
(2021)
Article
Chemistry, Physical
Chen Zhou, Yiping Huo, Yiyuan Guo, Qiqiang Niu
Summary: A novel metal-insulator-metal waveguide structure was proposed for use as a refractive index sensor and stop-band filter. Simulation results showed that multiple Fano resonances can be achieved by adjusting structural parameters, leading to high sensitivity and figure of merit.
Article
Physics, Applied
E. Mejia, Y. Qian, S. A. Safiabadi Tali, J. Song, W. Zhou
Summary: The study demonstrates that fixed-size tapered nanolaminate nanoantennas can achieve wide double-resonance spectral tunability by changing the metal-to-insulator thickness ratio. Experimental results show that these antennas can support tunable resonant wavelengths and exhibit great performance in terms of electromagnetic responses.
APPLIED PHYSICS LETTERS
(2021)