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January 2012 - present
January 2010 - December 2012
January 2010 - present
Publications
Publications (571)
The plasmonic antenna probe is constructed using a silver rod embedded in a modified Mach-Zehnder interferometer (MZI) ad-drop filter. Rabi antennas are formed when space-time control reaches two levels of system oscillation and can be used as human brain sensor probes. Photonic neural networks are designed using brain-Rabi antenna communication, a...
This manuscript explores the topological and optical properties of a Passeriformes bird feather. Inside the feather, the layers of keratin and melanin are responsible for light reflection,
transmission, and absorption; notably, the miniature composition of melanosome barbules plays a crucial role in its reflective properties. We adopted a multilaye...
Schizophrenia (SZ) is a major neuropsychiatric disorder. Neuroimaging studies have provided compelling evidences of both structural and functional brain abnormalities in SZ. However, most existing studies are based on functional connectivity (FC) of brain regions under an implicit assumption of stationary of FC throughout the time. Recent studies h...
The concept of making any logical (Boolean) function reversible is gaining much attention in the recent past for its applications in nanotechnology, quantum dot cellular automata and quantum computing etc. The use of reversible Boolean function not only simplifies back tracing, but it also allows efficient computation because of the non erasure of...
In this paper, a drop-shaped fractal patch antenna is designed and simulated using Polyamide substrate. The designed antenna is simulated for 4.35–4.42 THz. The designed antenna resonates at 4.4 THz frequency. The maximum gain of 9.34 dBi is achieved. The designed antenna has applications in THz for communication, sensing, and 4.2, 4.3, and 4.4 THz...
Automatic processing and diagnosis of electrocardiogram (ECG) signals remain a very challenging problem, especially with the growth of advanced monitoring technologies. A particular task in ECG processing that has received tremendous attention is to detect and identify pathological heartbeats, e.g., those caused by premature ventricular contraction...
In this paper microstrip ring antenna is designed for triple, quad, and super wideband terahertz application. Three antenna configurations are discussed here with application in upcoming 6G technology, Health monitoring systems, wireless sensor network, and the Internet of Things (IoT). A square ring resonator antenna designed on 710 × 910 × 10 µm3...
Automatic detection of life-threatening cardiac arrhythmias has been a subject of interest for many decades. The automatic ECG signal analysis methods are mainly aiming for the interpretation of long-term ECG recordings. In fact, the experienced cardiologists perform the ECG analysis using a strip of ECG graph paper in an event-by-event manner. Thi...
The extensive search for the implementation of reversible logic using emerging technologies has paved the way for the rise of optical computing. The Mach–Zehnder interferometer (MZI), an optical switch capable of driving an input optical signal to a certain output port, has evolved as a potential candidate to represent any Boolean logic. In this pa...
A unique RFID silicon chip is proposed for sensing applications. The RFID silicon chip is a microring circuit that has a panda ring form where the working principle is based on the space-time function. The RFID silicon chip operates in the frequency range of 150-250THz. The input light wavelength of 1.55 μm, which forms the input space signal via t...
Considering the recent rapid advancements in digital technology, electroencephalogram (EEG) signal is a potential candidate for a robust human biometric authentication system. In this paper the focus of investigation is the use of brain activity as a new modality for identification. Univariate model biometrics such as speech, heart sound and electr...
Recently, new advances and emerging technologies in healthcare and medicine have been growing rapidly, allowing for automatic disease diagnosis. Healthcare technology advances entail monitoring devices and processing signals. Advanced signal processing and analytical techniques were effectively implemented in numerous research domains. Thus, adopti...
The cortical pyramidal neurons in the cerebral cortex, which are positioned perpendicularly to the brain’s surface, are assumed to be the primary source of the electroencephalogram (EEG) reading. The EEG reading generated by the brainstem in response to auditory impulses is known as the Auditory Brainstem Response (ABR). The identification of wave...
These days when integrated circuit (IC) designers are facing an uphill task in limiting energy/heat dissipation, reversible computing is emerging as a potential candidate with vast application in fields like nanotechnology, quantum-dot cellular automata, and low power IC. Optical reversible logics have turned up to offer high speed and low energy c...
Sharma, M. K.Ray, K.Yupapin, P.Kaiser, M. S.Ong, C. T.Ali, J.Epilepsy is a neurological disease that’s characterized by perennial seizures. In this neurological condition the transient electrical phenomenon within the brain occurs that produces an amendment in sensation, awareness, and behavior of an individuals that leads to risk. To understand th...
Bio-living organisms can effectively respond to various signals from the surrounding space due to their geometric shape. In this manuscript, our central goal is to understand the underlying mechanisms of signal processing inside bio-living systems,whichmayhavebeneficialapplicationsinmedicaldomainssuchasdisease diagnosis and sensing the space present...
This article introduces the IR sensor in the living organism. Electrodynamics in the living system is aimed to introduce electromagnetic mechanism inside the biological system and correlates the bio function of living organisms. Here, we have introduced the biological accurate snake pit membrane’s modeling, simulation methodologies, and compared it...
Ambient computing enabled for body area networks have received much consideration over the past couple of years due to its applications in biomedical, healthcare monitoring, and military systems. Such systems are attracting users in other applications like gaming, fitness, sports, and other life style tools. The fast-moving lifestyle of people impe...
In the present work, a highly sensitive SPR biosensor based on silver (Ag), barium titanate (BaTiO3), graphene, and affinity layer is proposed for the detection of Pseudomonas bacteria. The performance of this proposed sensor has been numerically studied and analyzed for sensitivity, quality parameter, and detection accuracy. The proposed structure...
In the paper, a spirally filled solid core chalcogenide-based photonic crystal fibre is proposed, which is engineered to obtain a flattened broad anomalous dispersion profile. The spectrum spanning in the wavelength region from 1.5 to 3.6 μm was achieved by pumping hyperbolic secant pulses with a peak power of 350 W and 85 fs pulse duration, at a w...
This article reports on the role of potassium (K) as dopant in Cu 2 ZnSn (S,Se) 4 , CZTSSe thin film in context of optical properties. Thin film precursor solution is prepared in dimethyl sulfoxide (DMSO) solvent, and doped by K with six different concentrations. The prepared solution are deposited on heated soda lime glass (SLG) substrates using s...
This article reports the synthesis of cobalt ferrite (CoFe 2 O 4 ) nanoparticles by low-cost sol-gel auto combustion method. The synthesized CoFe 2 O 4 nanoparticles were characterized using X-ray Diffraction (XRD), Field Emission Scanning Electron Microscope (FESEM), Energy Dispersive X-ray (EDX), UV-Visible (UV-Vis), Fourier Transform Infrared Sp...
The present article reports the growth mechanism of zinc oxide (ZnO) nanowires grown on silicon substrate pre-coated with ZnO buffer layer by thermal evaporation method. ZnO nanowires are grown for different growth time of 0, 30, 90 and 120 mins with controlled supply of Ar and O 2 gas at 650 °C. The structural, morphological and crystallinity prop...
This work presents a novel structure of surface plasmon resonance (SPR) sensor for urine glucose detection. The structure consists of four layers namely gold, molybdenum disulfide (MoS2), h-BN (hexagonal boron nitride), and graphene. Here, the few-layer h-BN is used as a capping layer over the MoS2 layer. The present sensor performance has been eva...
In this paper, the conventional iterative method is applied to study the nonlinear response of light within the chalcogenide glass (As2Se3) resonating system. The proposed system consisted of two cascaded modified add–drop resonators, which is known as a Panda-ring resonator. The feedback circuit is constructed by the two Panda-ring resonators, whe...
The Cherenkov excitation of terahertz (THz) radiation by the interaction of an electron beam with the transverse magnetic modes of electromagnetic waves in a new configuration of cylindrical metallic rippled-wall waveguide (CMRWW) including an unmagnetized degenerate plasma layer and a dielectric rod is studied. In addition, the electric field prof...
AIn this paper, impact of communication delay on distributed load frequency control (dis-LFC) of multi-area interconnected power system (MAIPS) is investigated. Load frequency control (LFC), as one of ancillary services, is aimed at maintaining system frequency and inter-area tie-line power close to the scheduled values, by load reference set-point...
A negative entropic system formed by a close successive polariton filtering within a modified optical add–drop filter is proposed. The device ends are embedded by the gold gratings and TiO2 materials, in which the close successive polariton filtering can be formed. The selected light source is input into the system via the input port. There is no l...
We have demonstrated that the bifurcation patterns can generate by the double Panda‐ring resonator system, where the first system is configured as the input source, while the second system is the feedback control systems. The key concept of the proposal is the two nonlinear side ring resonators that can induce the nonlinear Kerr effect into the cen...
Aluminium substituted cobalt-copper Co1-xCuxFe2-xAlxO₄, (x ═ 0.8) nanoparticles are grown and sintered at different temperature in the range 600 to 900 °C. XRD analysis on nanoparticles prepared at sintered temperatures of 700 °C and 800 °C confirms the spinel structure and presence of hematite phase (alpha ferrite) in them. The dielectric behaviou...
The classical computing has already done wonders with computation, however limitations on speed and security of transmitted information is endorsing novel computation techniques. Quantum computing is expected to resolve complex problems especially for unachievable speed with best possible secure communication. The logic gates for two Quantum bits (...
We have further developed the two-brains hypothesis as a form of complementarity (or complementary relationship) of endogenously induced weak magnetic fields in the electromagnetic brain. The locally induced magnetic field between electron magnetic dipole moments of delocalized electron clouds in neuronal domains is complementary to the exogenous e...
Graphene, a single-layer carbon sheet with hexagonal lattice structure, has shown several unique characteristics such as the quantum Halleffect, high carrier mobility, large theoretical specific surface area, good optical transparency, high Young’s modulus, and excellent thermal conductivity. A single square-meter sheet of graphene of weight 0.0077...
Three different wavelength light sources are coupled to microring circulator via modified add-drop multiplexers, from which the multiplexed signals of them can be formed at the plasmonic islands and used as the distributed sensor nodes. The change in the wavelength due to the external environment will affect the refractive index of the sensing mate...
Quick setting and poor injectability due to liquid–solid phase separation have limited the clinical use of brushite and monetite cements. The presence of certain ions in the cement during the setting reaction moderate the setting time and properties of the cement. This study reports the preparation of injectable bone cement by using biphasic calciu...
A broadband wavelength photon squeezing system using a Panda-ring resonator embedded a gold grating is proposed. The selected laser source is input into the system via an input port, from which the nonlinear Kerr effect induced by the two nonlinear side rings and coupled into the center ring. Besides, the wavelength scattering is affected by the go...
This is an open access article under the CC BY-NC 4.0 license (https://creativecommons.org/licenses/by-nc/4.0/)
The physicality of subjectivity is explained through a theoretical conceptualization of guidance waves informing meaning in negentropically entangled non-electrolytic brain regions. Subjectivity manifests its influence at the microscopi...
If the physical mind is located in quantized space of the brain then how does the physical mind become the self? This remains an unresolved problem. It can be restated as how mental representations or mental states get their informational contents, and of doing so in terms of the natural functions brain states have? We call these natural brain func...
Comparative study of fast focus mode (FFM)and slow focus mode (SFM)of INTI Plasma Focus device at 12 kV, based on Lee Model, are presented in this paper. Results of numerical experiments for D, Ne, and Ar gases at different pressure ranges show that as a rule-of-thumb, diameter-optimized SFM is considered to occur when fast plasma stream speed gene...
This work is an illustration of a narrowband optical filter device based on cladding modulated grating waveguide for enhancing the device performance in terms of minimizing the bandwidth. The device parameters are optimized through Taguchi approach. Tolerance analysis of device parameters has been done to analyze their effect on the device’s respon...
An on-chip-scale, up-down link conversion circuit for electro-optic signals to use in a light fidelity network application is proposed. A system consisting of a loop microring resonator (known as a Panda-ring resonator), is coupled inline to the input of a Mach–Zehnder interferometer (MZI). When the light from that source is input into the system,...
A dark-bright soliton conversion is used to perform the two arithmetic logic unit operations namely adder and subtractor operations. The advantage of the system such as power stability, non-dispersion and the dark-bright soliton phase conversion control can be obtained. The input source into the circuit is the bright soliton pulse, with the pulse w...
A dense plasma focus (DPF) machine, being a source of a powerful ion beam, can be useful in the modification of the surface properties of materials. Experimental investigations were carried out with a 3.3 kJ Mather-type DPF operating in nitrogen at a low chamber pressure with low carbon steel as the target material. It was found that the DPF ion be...
A free space cross-connection of the optical signals using an optical micro/nano-electro-mechanical system(OMEMS/ONEMS) is designed and simulated using the commercial software called MATLAB and OPTI-WAVE programs, in which a nonlinear micro-ring device known as a Panda-ring resonator is used to form the cross connection of two different sources, th...
The on-chip scale circuit of the optoelectronic transformer is designed and manipulated using the microring resonator system. By using the monochromatic input light source, the electro-optic signals can be generated and functioned as the step up and down conversion by mean of the on-chip optoelectronic transformer. The step up and down of the elect...
The distributed optical sensors using the multi-input light sources have been designed and simulated. It consists of 6 sensor nodes coupled to the main ring resonator, which is an optical circulator operation. It is a micro-scale device that can be fabricated by the current technology. The three distance light sources are simultaneously fed and the...
A macro-quantum model is developed to describe spontaneous processes in terms of computable equations. The resultant macro-quantum wave equation (Schrödinger-type equation) is solved via a Madelung transformation to yield a complex-valued solution whose real part gives the macro-quantum potential energy. We show that the mechanism responsible for s...
The present article reports the growth mechanism of zinc oxide (ZnO) nanowires grown on silicon substrate pre-coated with ZnO buffer layer by thermal evaporation method. ZnO nanowires are grown for different growth time of 0, 30, 90 and 120 mins with controlled supply of Ar and O2 gas at 650 o C. The structural, morphological and crystallinity prop...
The sequence of the human brain can be configured by the originated strongly coupling fields to a pair of the ionic substances(bio-cells) within the microtubules. From which the dipole oscillation begins and transports by the strong trapped force, which is known as a tweezer. The tweezers are the trapped polaritons, which are the electrical charges...
Mindfulness foundation is an excellent method of the human spiritual development by the reasonable thinking and consideration, which was established by Lord Buddha a long time ago. There are four ways of thinking and consideration-(i) form (body), (ii) sensation, (iii) spiritual and (iv) Dhamma. In this paper, we propose the use of the form conside...
By using short Gaussian pulses from a monochromatic light source as input ones, we simulate the photon distribution and analyze the output signals of a nonlinear microring resonator with two nonlinear side rings. Such a configuration is called a Panda ring resonator, which is a modified add-drop filter with two alongside phase modulators. We consid...
The growth of multi-walled carbon nanotubes (MWCNTs) has been extensively studied using electron microscopy. The ex situ structural behavior was examined to investigate the growth of the MWCNTs under different environments and pressures using electron microscopy. The arc discharge plasma technique was applied to synthesize the MWCNTs by evaporating...
Silica nanoparticles have drawn significant intentions for their potential in solar cell coating applications. These products occupy a noticeable position in a scientific research because of their easy preparation and wide uses for different technological applications. The quality of silica nanoparticles are highly dependent on the size. This study...
In this paper, we propose a plasmonic circuit based on optical add‐drop multiplexer. A stack of silicon–graphene–gold layers is used at optical add‐drop filter ends. The light input from a laser source at the silicon base of the stack enables ultrafast electrical switching by rapid light‐electron energy conversion. It allows feedback signals monito...
In this study, we propose a model for the dual mode gold grating sensor using a microring conjugate mirror (MCM) and the plasmonic island. The sensor measurement of derived quantity is the change in the Bragg wavelength and electron mobility that can be related to the optical phase‐shift or gold grating mobility changes. The plasmonic island consis...
In this paper, the ultra‐wideband source for light fidelity (LiFi) and high‐density 3D imaging applications is proposed. The system consists of an add‐drop multiplexer. The center ring is formed by the Chalcogenide glass (ChG), which is coupled with two GaAsInP/P side rings. The nonlinear effect within the side rings (phase modulators) is induced i...
We present a design of micro-conjugate mirror using a nonlinear microring resonator, which is made of GaAsInP/P, is rapidly achieving widespread option in several three-dimensional (3D) imaging applications. By exploiting the conjugate mirror properties, the 3D light probes can be formed by the whispering gallery modes (WGM) in which the WGM probe...
Light has found applications in data transmission, such as optical fibers and waveguides and in optoelectronics. It consists of a series of electromagnetic waves, with particle behavior. Photonics involves the proper use of light as a tool for the benefit of humans. It is derived from the root word “photon”, which connotes the tiniest entity of lig...
The design of the microsensor system for biosensors using the plasmonic island is proposed. The sensor head is formed by the stacked layers of silicon-graphene-gold materials. The dual-mode operations of the sensor can be performed using the relationship of the changes between the electron mobility and optical phase, where the exciting environment...
The electro-optic power pumping system model using the inline successive technique within the modified add-drop filter is proposed. A pumping system consists of a closed loop Panda ring resonator, from which the optical power is coupled inline into the system. By controlling the two side phase modulators, the whispering gallery mode (WGM) is genera...
We have proposed the use of a soliton pulse that propagates within a modified add-drop filter, which is made of a GaAsInP/P material. It is in the form of a Panda-ring resonator, from which a bright/dark soliton pulse is input into a system via an input port. The conversion between bright and dark soliton pulses is introduced at the 3 dB coupler, i...
We propose a new concept of the nonlinear effect called the Kerr-Vernier effect by using cascaded Si-ChG microring circuits. The circuit is simulated for two materials of different refractive indices which results in phase difference in propagating light and hence observed in the output signal. By varying the input power into the system, the Vernie...
This paper reports the hydrazine-free solution processing of antimony doping in CuIn(S,Se)2 solar cells using thiol-amine as solvents. The Sb-doped CuIn(S,Se)2 absorbers layer is fabricated using low-cost atmospheric spray deposition route. The morphological, optical, and electrical properties of Sb-doped CuIn(S,Se)2 are investigated using XRD, FE-...
Polaritonic signal processing model and manipulation using a microring successive filtering circuit are proposed. The polariton signals are generated by the coherent light within the microring embedded a gold nanograting island, from which the successive filtering of the polariton signals within the designed on-chip circuit is manipulated by adjust...
