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Manish Kumar

Bio: Manish Kumar is an academic researcher from Indian Institutes of Technology. The author has contributed to research in topics: Surface plasmon resonance & Metamaterial. The author has an hindex of 5, co-authored 17 publications receiving 52 citations. Previous affiliations of Manish Kumar include VIT University & Indian Institute of Technology Dhanbad.

Papers
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Journal ArticleDOI
TL;DR: A new sensing theory for exploring highly dispersion tailored properties of multilayer sensor structure is design for efficient biorecognition and the proposed design scheme is able to completely remove the side lobes in the dispersion graph by properly controlling the Teflon layer, thin gold film, and metamaterial thickness for the case of multimode SPR sensor.
Abstract: In this paper, we describe a novel dispersion tailored properties of surface plasmon resonance (SPR) sensor assisted by Teflon and metamaterial layers. The dispersion property and the excitation methods of surface plasmon (SP) waves have been great significance in sensor design. Most of the time, SPR sensor designed for biosensing has been dual mode and its side lobes in dispersion graph can significantly reduce the sensitivity. We propose a design of as many as five-mode SP sensor assisted by Teflon and metamaterial layers. A new sensing theory for exploring highly dispersion tailored properties of multilayer sensor structure is design for efficient biorecognition. The proposed design scheme is able to completely remove the side lobes in the dispersion graph by properly controlling the Teflon layer, thin gold film, and metamaterial thickness for the case of multimode SPR sensor. To the best of our knowledge, dispersion tailored properties of multimode SP sensor assisted by Teflon and metamaterial layers together have not been explored and analyzed. The standard matrix method is applied to calculate the various performance parameters of the sensor. Experimental validation has been done with available results for a specific case.

22 citations

Journal ArticleDOI
TL;DR: The paper shows the switching activity of micro-ring resonator structures along with the corresponding graphs, including what happens when enabling the effective active high/low all optical tri-state buffer logic functionality.
Abstract: Implementation of high-speed switching activity in the all-optical domain is one of the required necessities for modern high-speed technology and secured communication. The paper includes the interesting method describing micro-ring resonator structures as switching logic, exploring it to implement the active low tri-state buffer in the all-optical domain structures. The paper shows the switching activity of micro-ring resonator structures along with the corresponding graphs are discussed, including what happens when enabling the effective active high/low all optical tri-state buffer logic functionality. The application and advantage of tri-state buffer logic in the all-optical domain are explained.

13 citations

Journal ArticleDOI
TL;DR: In this paper, a brief introduction on surface plasmon resonance (SPR) theory, principle, and application is given, followed by describing the utility of metamaterials for this sensing paradigm.
Abstract: This paper includes a brief introduction on surface plasmon resonance’s (SPRs) theory, principle, and application, followed by describing the utility of metamaterials for this sensing paradigm. The bimetallic layers of gold and silver are crucial for SPR sensing, which is detailed. Finally, the matrix method for the calculation of reflectance for multiple layers is explained. The structures along with the corresponding graphs are discussed, including what happens when a metamaterial is used between two metal layers is derived.

12 citations

Journal ArticleDOI
TL;DR: The proposed four cascaded micro-ring resonator structures representing all-optical ripple down counters, and numerical simulation is presented with some additional analysis, which may be helpful for all-Optical signal processing and logical computation.
Abstract: Micro-ring resonator (MRR)-based switching is one of the promising technologies in modern optical signal processing and optical computing. In this paper, we present a scheme of all-optical 2-bit ripple down counter, using the MRR-based all-optical switching activity. The proposed mechanism shows the generation of all-optical two bits ripple down sequences without any involvement of electrical pumping. The optical pumping shows one of the innovative ways to overcome the complexity associated with electrical pumping. The paper includes the detailed mathematical analysis of all-optical switches in the form of a micro-ring resonator structure. We proposed four cascaded micro-ring resonator structures representing all-optical ripple down counters, and numerical simulation is presented with some additional analysis. The proposed design is simple and may be helpful for all-optical signal processing and logical computation.Author names: Please confirm if the author names are presented accurately and in the correct sequence (given name, middle name/initial, family name). Given name: [Sumit Kumar] Last name [Jindal]. Also, kindly confirm the details in the metadata are correct.It is OKAuthor details: Kindly check and confirm whether the corresponding author and mail ID are correctly identified.ok

8 citations

Journal ArticleDOI
TL;DR: This article presents the analysis of a special featured grating-assisted surface plasmon resonance (SPR) phenomena by multiple stacked metamaterial and silver layers as one grating structure, and the sensitivity slope property has been explored further for each case.
Abstract: In this article, we present the analysis of a special featured grating-assisted surface plasmon resonance (SPR) phenomena by multiple stacked metamaterial and silver layers as one grating structure. The bimetallic layer of gold (Au) and silver (Ag) has been used with stacked multiple negative refractive index (NRI) metamaterial layers to explore the special featured sensing capability. NRI grating with Ag layer supports better coupling to excite the multimode for the proposed structure at the same excitation condition. Hence, the alternating layer of NRI material along with Ag is used as a grating structure that is an excellent combination of the grating layer through which the proposed structure supports better coupling to the adjacent sensing region. The grating parameters have been optimized in such a way to enhance the number of resonance modes in the sensing region. It is found that SPR sensor sensitivity using negative diffraction order has a larger dip, while the resonant angle became wider for positive diffraction order. The transfer matrix method is used for the calculation of various parameters. The special featured structure with corresponding response graphs is described along with discussing what happens when the metamaterial layer thickness varies (and vice versa). Sensitivity tunability is demonstrated with variable metamaterial layer thickness. A sensitivity study is a significant parameter in the design of any high-sensitive sensor to enhance the performance. Hence, the sensitivity slope property has been explored further for each case.

7 citations


Cited by
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Journal ArticleDOI
01 Mar 2021-Heliyon
TL;DR: A comprehensive review of SPR-based sensors, such as prism-based SPR with the applications (e.g., biomolecule interaction, medical diagnostic, etc.), fiber based SPR, and waveguide based SPR is presented in this paper.

82 citations

Journal ArticleDOI
TL;DR: In this article, a two-dimensional (2D) materials-based, such as graphene and black phosphorus (BP), optimized structure of the SPR-based chemical sensor with the increased sensitivity and better figure of merit (FOM) has been proposed.
Abstract: Surface plasmon resonance (SPR) based sensor has a great role in sensing applications in terms of real-time monitoring, label-free detection and repeatable measurements. Chemical produced in fruits during food adulteration is injurious to the health; hence, SPR sensors play a very important role in detecting these chemicals. In the present study, two-dimensional (2D) materials-based, such as graphene and black phosphorus (BP), optimized structure of the SPR-based chemical sensor with the increased sensitivity and better figure of merit (FOM) has been proposed. The finite element method (FEM) with the help of COMSOL Multiphysics software has been used for theoretical analysis. BK7 prism is coated with a bilayer of gold as plasmon active material, followed by black phosphorus (BP) and graphene, which works to enhance the evanescent field and also increase the performance of the sensor. The maximum sensitivity of the proposed optimized structure has been found 218 Degree/RIU for the $$5\times 10^{-3}$$ index variation at the wavelength of 633 nm. The results obtained from the proposed structure show that the sensor can enhance the sensitivity for aqueous solution of the chemicals having the refractive index from 1.33 RIU to 1.36 RIU.

52 citations

Journal ArticleDOI
TL;DR: The proposed AgNPs and CuO-NPs immobilized and the uricase functionalized SMSMS structure-based LSPR sensor has better compatibility and are potent candidates for medical applications.
Abstract: Fabrication and experimental validation of a newly developed copper oxide nanoparticles (CuO-NPs) and silver nanoparticles (AgNPs) immobilized SM-MM-SM-MM-SM (SMSMS) in-line Mach–Zehnder interferometer (MZI) fiber structure-based sensor using localized surface plasmon resonance (LSPR) technique are reported in this article. The AgNPs and CuO-NPs are used to improve the biocompatibility and sensitivity of the sensor. The nanoparticles (NPs) and immobilized probe were characterized by UV-Vis spectrophotometer, HR-TEM, SEM, and EDX, revealing superior performance over the existing uric acid (UA) sensors. The proposed optimized structure-based optical fiber sensors (OFSs) exhibit excellent specificity, sensitivity, and limit of detection (LoD) for the detection of UA. Moreover, the developed sensor exhibits linear profile over a very wide range: 1) $10~\mu \text{M}$ –1 mM for detection over UA presents in serum, while the normal range of UA in serum is 100– $400~\mu \text{M}$ and 2) 0.4–10 mM for detection over UA presents in urine, while the normal range of UA in urine is 1.5–4.4 mM. In addition, the developed sensor has a distinguished advantage, such as multicompatibility over the detection of UA presents in both serum and urine along with its high selectivity, reusability, reproducibility, and lowest LoD. The proposed AgNPs and CuO-NPs immobilized and the uricase functionalized SMSMS structure-based LSPR sensor has better compatibility and are potent candidates for medical applications.

48 citations