KMITL

Permanent URI for this communityhttps://dspace.kmitl.ac.th/handle/123456789/1

Browse

Search Results

Now showing 1 - 10 of 263

Some of the metrics are blocked by your
consent settings
Consciousness as a quantum dynamic effect
(2016-10-01)
Poznanski, R. R.
;
Cacha, L. A.
;
Ali, J.
;
Aur, D.
;
Perez Velazquez, J. L.
Electromagnetic quantum field interactions provide a deeper understanding of the emergence of consciousness through an ontological interpretation of quantum mechanics. Quasiparticle interactions in brain matter can produce "virtual" particles, hitherto mathematical conveniences, which reflect the manifold images of brain activities in terms of effects on charged particles that have physical quantum effect similar to the Aharonov-Bohm effect in quantum field theory. Electromagnetic potentials in the quantum domain pervade the entire brain through causative interactions. The exchange of energy quanta during quantum field interactions emerge as distinct patterns of quasiparticles and their entanglement produces waves of "virtual" particles with periodicities of discrete energies tethered through a common quantum potential as they interact and collectively represent the emergence of self-awareness as a quantum dynamic effect carried on the magnetic vector potential throughout the brain. This is caused by the magnetic dipole moments sensitivity to the phase shifts entrained by the zeitgeber acting on dipolar molecules in interfacial water. The emergence of consciousness is inseparable (spatiotemporally) in the sense that the endogenous electromagnetic field (and therefore the forces acting on the particles) vanish yet neurophenomenologically separate from the physical through the magnetic dipole moments sensitivity to the phase shifts of the coherent system. The subjective aspect of consciousness or phenomenal consciousness facilitates qualia as quantum information through information-physical interactions that metastabilize into rhythms unfolding through resonance into access consciousness as cognizable associable representations of subjective experiences. The transition from subjectivity occurs non-reductively from the microlevel to the macrolevel as a mechanism of spontaneous breaking of symmetry resulting from "photon" behavior of interfacial water instantiated by macroergic effects in the nuclei of neurons through a continuous supply of metabolic energy. The emergence of consciousness in living organisms disappears once autopoietic processes in populations of neurons cease to function.
Some of the metrics are blocked by your
consent settings
Multi wgm light probes generated by distributed panda resonator system
(2016-06-01)
Sappajak, S.
;
Patharacorn, P.
;
Chaingga, S.
;
Yupapin, P. P.
Multi-micro-sensing probes are generated by whispering gallery mode (WGM) of light within a PANDA ring resonator, from which the sensing device model is designed and simulated using the commercial MATLAB and Opti-wave programs. The WGMs are generated by travelling light signals within the nonlinear micro-ring resonator. The specific control of the concerned device parameters is provided, from which the generated WGM probes are obtained and used to form the distributed sensing head, where the exchange between the measurement environments and sensing device parameters can be interpreted to form the required signals. In practice, the output signal can be obtained by using the detected output device (i.e., photodetector) via the add port output signals, where the measurements in terms of phase or wavelength changes can be interpreted relatively to the applied physical content parameters. Results obtained have shown that the linear relationship between angular velocity and the change in wavelength can be achieved, which is useful for sensing device application. In general, the large volume or contents can be employed by using the distributed sensor configuration.
Some of the metrics are blocked by your
consent settings
A comprehensive treatment of parametric effect in a silicon microring resonator
(2016-05-18)
Nawi, I. N.M.
;
Ali, J.
;
Yupapin, P. P.
Silicon microring resonator provides a new platform to form the building block for all-optical circuits, where it could be integrated on a single chip as a passive or active components. Here, we report a comprehensive treatment of parametric effect in a symmetrical add/drop silicon microring resonator with 5 μm radius operating within telecom wavelength spectrum or C-band ranging from 1530 nm to 1565 nm. The power outputs of the system are analyzed by using transfer matrix method. The FSR and FWHM have been optimized. The results demonstrated here will pave the way towards the new on-chip and chip-to-chip architecture and structure for low power and high bandwidth applications especially for all-optical switch and optical modulator.
Some of the metrics are blocked by your
consent settings
Soliton pulse induces TPA effect in a silicon MRR all-optical switch
(2016-05-18)
Nawi, I. N.M.
;
Ali, J.
;
Yupapin, P. P.
One of the critical problems in achieving a real practical all-optical switching devices is the requirement for a strong material nonlinearity. A strong material nonlinearity is crucial in order to achieve a low switching power. However, silicon-based all-optical switches require extremely high switching power due to its relatively weak nonlinear optical properties. To overcome this limitation, we have designed an all-optical switch configuration based on silicon microring resonator structure and demonstrated the switching operation based on the nonlinear effects induced by a soliton pulse. The soliton pulse induces free-carrier concentration through two-photon absorption (TPA) effect and this leads to enhance the refractive index change and enhance the nonlinearity of the silicon. Thus, the silicon microring resonator alters the nonlinear phase shift which is required for switching.
Some of the metrics are blocked by your
consent settings
Analysis of temperature sensor in all-pass microring resonator
(2016-03-01)
Mohamad, Azam
;
Bahadoran, Mahdi
;
Daud, Suzairi
;
Chaudhary, Kashif Tufail
;
Aziz, M. S.
The temperature sensor using all-pass microrin resonator (APMRR) investigated theoretically and analyzed. An optical bright soliton is used as a probe to study the effect of applied temperature on the light behavior pass through microring waveguide. The split-step Fourier method is used to study the pulse propagation inside the APMRR. Result shows that the rise of temperature on peak amplitude ratio fit with quadratic line in temperature range of 27 oC-37 oC. . The temperature at 30 oC generate higher slope of reduction compare to temperature at 36oC. The amplitude ratio is reduced into 0.6 (-4.4370 dB) when the temperature increased as small as 1 oC. The operating range for all-pass resonator is 97 oC with amplitude reduction of -8.3975 dB.
Some of the metrics are blocked by your
consent settings
Spirit and brain signal analogy for brain science study
(2016-01-01)
Sappajak, S.
;
Yupapin, P. P.
A new insight of brain signal oscillation within a brain is proposed using the spirit signal, which is formed by the vector soliton pulse after Big Bang and localized in the Hilbert space. The spirit signal is entered into the suitable brain via the nerve center and linked to the entire body. The spirit signal oscillation can be configured by the propagation of photon within the circular like motion device, which is a nonlinear material device known as a panda ring resonator. A spirit signal is a form of energy and configured by a photon, from which the traveling spirit signal behavior can be described by using the standard time dependent Schrodinger equation. Preliminary results obtained have shown that the use of the spirit signal traveling in the nonlinear ring resonator can be formed and investigated. The proposed spirit signal can be used for brain signal manipulation, which is useful for brain science researches and investigations.
Some of the metrics are blocked by your
consent settings
Erratum: Laser-Induced Graphite Plasma Kinetic Spectroscopy under Different Ambient Pressures (Chinese Physics Letters (2015) 32:4 043201)
(2015-06-01)
Chaudhary, K.
;
Rosalan, S.
;
Aziz, M. S.
;
Bahadoran, M.
;
Ali, J.
Some of the metrics are blocked by your
consent settings
Laser-induced graphite plasma kinetic spectroscopy under different ambient pressures
(2015-04-01)
Chaudhary, K.
;
Rosalan, S.
;
Aziz, M. S.
;
Bohadoran, M.
;
Ali, J.
The laser induced plasma dynamics of graphite material are investigated by optical emission spectroscopy. Ablation and excitation of the graphite material is performed by using an 1064nm Nd:YAG laser in different ambient pressures. Characteristics of graphite spectra as line intensity variations and signal-to-noise ratio are presented with a main focus on the influence of the ambient pressure on the interaction of laser-induced graphite plasma with an ambient environment. Atomic emission lines are utilized to investigate the dynamical behavior of plasma, such as the excitation temperature and electron density, to describe emission differences under different ambient conditions. The excitation temperature and plasma electron density are the primary factors which contribute to the differences among the atomic carbon emission at different ambient pressures. Reactions between the plasma species and ambient gas, and the total molecular number are the main factors influencing molecular carbon emission. The influence of laser energy on the plasma interaction with environment is also investigated to demonstrate the dynamical behavior of carbon species so that it can be utilized to optimize plasma fluctuations.
Some of the metrics are blocked by your
consent settings
Kinetic model for carbon species distribution in arc discharge plasma
(2015-01-12)
Roslan, M. S.
;
Chaudhary, K.
;
Aziz, M. S.
;
Ali, J.
;
Yupapin, P. P.
In present work, numerical integration for density distribution of carbon species in arc discharge plasma is presented. The model incorporates two-body collision effects using continuity equation of density in conservation mass rate law. Plasma species in inter-electrode gap are accelerated by the electric field across the gap and produced high density plasma. Electrons with high energy in arc discharge plasma cause extended ionization, excitation, recombination, and dissociation process due to particle collision which leads to enrichment of density in spatial and temporal mode. The extrapolation of species dominant in arc discharge process is critical issue to predict carbon nanostructure production. A chemical kinetic models and distribution of carbon ions and neutrals species based on collision in thermal plasma condition is developed. The reaction process of carbon species are identified in the between electrodes region. The electron-ion recombination cross section is analyzed to understand the density evolution.
Some of the metrics are blocked by your
consent settings
Analysis of optical ring resonator
(2015-01-01)
Afroozeh, A.
;
Amiri, I. S.
;
Chaudhary, K.
;
Ali, J.
;
Yupapin, P. P.
Microring resonators (MRR) are defined as filters with characteristics similar to Fabry-Perot filters. However, they offer an advantage as the injected and reflected signals are separated in individual waveguides. In addition, their design does not require any facets or gratings and is thus practically simple. In this chapter, analyses of microrings based on three configurations are presented.

KMITL

Browse

Filters

Settings

Sort By

Results per page

Search Results