Perancangan Penyebaran Daya pada Single-mode Fiber dengan Menggunakan Bahan Lithium Niobate (Linbo3) dan Parafin (C20h42)

Optical switch represents good technology components used in many application especially in communication. Optical switch is different from conventional one having many advantageous. Single mode fiber optics is used as a waveguide for propagating the power of Laser Source and detected by power meter. The design is started by connecting single mode fiber optics to the source and detector. The voltage source is measured corresponding to power meter detector. The result shows that the lowest output power is detected from the paraffin of -39,28 dBm and fiber the output power is -12,67 dBm. The maximum input voltage is 3200 Volt and output voltage is 1061 Volt for optical fiber and the lowest electric field obtained is 223,2 x 10−11A/m2. The current density is 223,2 x 10−11 A/m2 for paraffin with 500 μm in diameter. The output voltage for paraffin 1032 Volt, the electric field of 412,8 x 104 V/m and current densityis 412,8 x 10−11 A with 250 μm in diameter

Graphite thin film deposition using laser induced plasma

The Excimer KrF laser (of wave length 248 nm, pulse energy of 13-50 mJ and pulse width of 20 ns) has been used to ablate graphite solid target. Thin films of graphite material have been grown on silicon (Si) substrate at different temperatures (25°C & 300°C). The techniques x-ray diffraction (XRD) and scanning electron microscopy has been used to study the structure and surface morphology of the deposited thin films. The whole experiment has been performed in the stainless steel chamber under pressure 10-4 torr and each thin film has been deposited for 10,000 laser shots. The graphite thin film deposited at higher substrate temperature has smooth structure and the film is uniform

Proposal for Alzheimer’s diagnosis using molecular buffer and bus network

A novel design of an optical trapping tool for tangle protein (tau tangles, β-amyloid plaques) and molecular motor storage and delivery using a PANDA ring resonator is proposed. The optical vortices can be generated and controlled to form the trapping tools in the same way as the optical tweezers. In theory, the trapping force is formed by the combination between the gradient field and scattering photons, and is reviewed. By using the intense optical vortices generated within the PANDA ring resonator, the required molecular volumes can be trapped and moved dynamically within the molecular buffer and bus network. The tangle protein and molecular motor can transport and connect to the required destinations, enabling availability for Alzheimer’s diagnosis

Thermodynamic equilibrium for nitrogen species discharge: comparison with global model

The equilibrium process of plasma nitrogen species by chemical kinetic reactions along various pressures is successfully investigated. The equilibrium process is required in industrial application to obtain the stable condition when heating up the material for having homogenous reaction. Nitrogen species densities is modeled by a continuity equation and extended Arrhenius form. These equations are used to integrate the change of density over the time. The integration is to acquire density and the reaction rate of each reaction where temperature and time dependence are imposed. A comparison is made with global model within pressure range of 1–100 mTorr and the temperature of electron is set to be higher than other nitrogen species. The results show that the chemical kinetic model only agrees for high pressure because of no power imposed; while the global model considers the external power along the pressure range then the electron and nitrogen species give highly quantity densities by factor of 3–5

Nano-sized agglomerated Ni particles synthesized by a phase transformation method Multi-photons Trapping Stability within a Fiber Bragg Grating for Quantum Sensor Use

We propose an interesting result of the trapped multi photons distribution within a fiber Bragg grating. The trapped photons are con?ned by the potential well, which introduce the motion of photons in a ?ber Bragg grating a?ected by multi perturbations. The external perturbations are de?ned as series of nonlinear parametric in terms of potential energy. This in- vestigation is developed by using the nonlinear couple mode equations and under Bragg resonance condition where the initial frequency of the light, ?0 is the same value as the Bragg frequency, ?B . The results show that the higher perturbation series represents the potential well is much indi?erent of equilibrium. In applications, the perturbation can cause the trapped photons in- stability which introduces the escape photons from the potential well. The applications such as entangled photon source and quantum sensors can be performed

Gold nanoparticle trapping and delivery for therapeutic applications

A new optical trapping design to transport gold nanoparticles using a PANDA ring resonator system is proposed. Intense optical felds in the form of dark solitons controlled by Gaussian pulses are used to trap and transport nanoscopic volumes of matter to the desired destination via an optical waveguide. Theoretically, the gradient and scattering forces are responsible for this trapping phenomenon, where in practice such systems can be fabricated and a thin-film device formed on the specific artifcial medical materials, for instance, an artificial bone. The dynamic behavior of the tweezers can be tuned by controlling the optical pulse input power and parameters of the ring resonator system. Different trap sizes can be generated to trap different gold nanoparticles sizes, which is useful for gold nanoparticle therapy. In this paper, we have shown the utility of gold nanoparticle trapping and delivery for therapy, which may be useful for cosmetic therapy and related applications

Generation of THz frequency using PANDA ring resonator for THz imaging

MA Jalil1, Afroozeh Abdolkarim2, T Saktioto2, CT Ong3, Preecha P Yupapin41Ibnu Sina Institute of Fundamental Science Studies, Nanotechnology Research Alliance, Universiti Teknologi Malaysia (UTM),81310, Johor Bahru, Malaysia; 2Institute of Advanced Photonics Science, Nanotechnology Research Alliance, Universiti Teknologi Malaysia (UTM), 81310, Johor Bahru, Malaysia; 3Department of Mathematics, Universiti Teknologi Malaysia 81310 Skudai, Johor Bahru, Malaysia; 4Nanoscale Science and Engineering Research Alliance (N'SERA), Advanced Research Center for Photonics, Faculty of Science, King Mongkut's Institute of Technology Ladkrabang, Bangkok 10520, ThailandAbstract: In this study, we have generated terahertz (THz) frequency by a novel design of microring resonators for medical applications. The dense wavelength-division multiplexing can be generated and obtained by using a Gaussian pulse propagating within a modified PANDA ring resonator and an add/drop filter system. Our results show that the THz frequency region can be obtained between 40–50 THz. This area of frequency provides a reliable frequency band for THz pulsed imaging.Keywords: THz imaging, THz technology, MRRs, PANDA, add/drop filte

Development of single mode fiber coupling coefficient using kinetic model

We propose a simple kinetic model that can be used to improve the coupling coefficient value of a single mode fiber coupler in the fabrication process. The proposed model is time independent, where the internal and external parametric functions are included. The simulation is integrated over the coupling ratio range for the various fiber separations. The coupling coefficient value of the device is examined by using the coupling ratio range from 1% to 75%. The result obtained is compared with the experimental results, where it is noted that the separation of fiber cores significantly affects the coupling coefficient, exhibiting exponential behavior. We also found that the coupling coefficient gradient is significantly changed with respect to the coupling ratio. This model can be used to determine power losses of the fiber coupler at the coupled region, while the fabrication of the fiber coupler is operated