T. Saktioto - Academia.edu (original) (raw)
Papers by T. Saktioto
Microwave and Optical Technology Letters, 2015
ABSTRACT
Journal of Biosensors & Bioelectronics, 2014
Artificial Cells, Nanomedicine and Biotechnology, 2013
A microring resonator (MRRs) system incorporated with a add/drop filter is proposed in which ultr... more A microring resonator (MRRs) system incorporated with a add/drop filter is proposed in which ultra-short single, multi-temporal, and spatial optical soliton pulses are simulated and used to kill abnormal cells, tumors, and cancer. Chaotic signals are generated by a bright soliton pulse within a nonlinear MRRs system. Gold nanoparticles and ultra-short femtosecond/picosecond laser pulses' interaction holds great interest in laser nanomedicine. By using appropriate soliton input power and MRRs parameters, desired spatial and temporal signals can be generated over the spectrum. Results show that short temporal and spatial solitons pulse with FWHM = 712 fs and FWHM = 17.5 pm could be generated. The add/drop filter system is used to generate the high-capacity, ultra-short soliton pulses in the range of nanometer/second and picometer/second.
International Journal of Nanomedicine, 2011
A new optical trapping design to transport gold nanoparticles using a PANDA ring resonator system... more A new optical trapping design to transport gold nanoparticles using a PANDA ring resonator system is proposed. Intense optical fields 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 artificial 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.
International Journal of Nanomedicine, 2011
Optoelectronic Devices and Integration II, 2007
Coupled 1X2 Single Mode Fiber (SMF-28e®) is successfully fabricated using a slightly unstable tor... more Coupled 1X2 Single Mode Fiber (SMF-28e®) is successfully fabricated using a slightly unstable torch flame at a temperature range 800°C to 1350°C by injecting hydrogen gas flowing at pressure of 1 bar. The fiber structure and geometry are investigated for both core and cladding before and after fusion. Coupled fiber is studied using Field Emission Scanning Electron Microscopy (FESEM) and
Plasma Sources Science and Technology, 2001
Nitrogen plasmas at atmospheric pressure produced by 2.45 GHz microwaves at a power density of ap... more Nitrogen plasmas at atmospheric pressure produced by 2.45 GHz microwaves at a power density of approximately 10 MW m-3 have a degree of ionization less than about 10-7. Nevertheless they have interesting and potentially important effects on polymer and metal surfaces exposed to them. An experimental programme is underway to identify the active species in the plasma and its afterglow. This paper describes a simplified model of the chemical kinetics in the plasma that allows species concentrations to be estimated in a range of conditions, for comparison with experimental data. It predicts a high degree of dissociation combined with low gas temperature in microwave-generated plasmas.
Optik - International Journal for Light and Electron Optics, 2010
Fabrication of single-mode fiber coupler by heating fibers on a flame is very common and popular.... more Fabrication of single-mode fiber coupler by heating fibers on a flame is very common and popular. However, controlling the input and the output power quantities of the fiber coupling process is neither easy nor similar. Power losses occur at the coupling length as the effect of the geometry and structure of fibers during and after fusion. In application, the power losses will affect sensor devices, eg optical switch. This paper proposes power splitting into the second fiber junction as a new model by deriving and integrating the coupling power with ...
Optik - International Journal for Light and Electron Optics, 2010
We propose a simple kinetic model that can be used to improve the coupling coefficient value of a... more 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 ...
Microwave and Optical Technology Letters, 2010
the notch band and UWB passband are 2.4 dB and 2.6 dB, respectively. For the notch band, MAR of t... more the notch band and UWB passband are 2.4 dB and 2.6 dB, respectively. For the notch band, MAR of the transmission skirt is 32.94 dB/GHz calculated from 5.34 GHz with À3 dB to 6.24 GHz with À14.6 dB. The inevitable insertion loss observed in operation frequency higher than 5 GHz can be improved by replacing the substrate with other materials having a smaller loss tangent than that of FR4. lists the performance comparison among the fabricated UWB-BPF and other filters in previous publications. It is shown that the proposed UWB-BPF adopting C-shaped DGS structure has the advantage of miniaturization.
Abstract—We propose an interesting result of the trapped multi photons distribution within a fibe... more Abstract—We propose an interesting result of the trapped multi photons distribution within a fiber Bragg grating. The trapped photons are confined by the potential well, which introduce the motion of photons in a fiber Bragg grating affected by multi perturbations. The external perturbations are defined as series of nonlinear parametric in terms of potential energy. This investigation is developed by using the nonlinear couple mode equations and under Bragg resonance condition where the initial frequency of the light, ω0 is the same value as the ...
Journal of Applied Science Research-" Estimation of coupling coefficient and refractive index", 2008
Fiber couplers are widely used in telecommunication and industry as a passive splitting power dev... more Fiber couplers are widely used in telecommunication and industry as a passive splitting power device. The effective power coupling and transmitting from one fiber to another is mainly determined by both coupling length and coupling coefficient. Coupling length can be calculated directly but for coupling coefficient it depends upon the refractive index and separation fiber axis. After fusion processes of two SMF-28e® couplers, the refractive index is unknown due to change in the radius of fiber (rcladd< 40ï m and rcore< 1.5 ï m). ...
International Journal of Light and Electron Optics, 2009
International Journal for Light and Electron Optics, 2009
PIERS PROCEEDING 2010 Xi’an, Progress In Electromagnetics Research Symposium, 2010
We propose an interesting result of the trapped multi photons distribution within a fiber Bragg g... more 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 ...
Proc. of 2nd Topical Meeting on Lasers and Optoelectronics, 2010
A. Fadhali, Mohamed MA (2010) Penetration depth estimation for stainless steel 304L using Pulsed ... more A. Fadhali, Mohamed MA (2010) Penetration depth estimation for stainless steel 304L using Pulsed Nd : YAG laser spot micro welding. In: 2nd Topical Meeting on Lasers and Optoelectronics (2nd TMLO), 2010, Terengganu. ... Full text not available from this repository. ... Universiti Teknologi Malaysia Institutional Repository is powered by EPrints 3 which is developed by the School of Electronics and Computer Science at the University of Southampton. More information and software credits.
Microwave and Optical Technology Letters, 2015
ABSTRACT
Journal of Biosensors & Bioelectronics, 2014
Artificial Cells, Nanomedicine and Biotechnology, 2013
A microring resonator (MRRs) system incorporated with a add/drop filter is proposed in which ultr... more A microring resonator (MRRs) system incorporated with a add/drop filter is proposed in which ultra-short single, multi-temporal, and spatial optical soliton pulses are simulated and used to kill abnormal cells, tumors, and cancer. Chaotic signals are generated by a bright soliton pulse within a nonlinear MRRs system. Gold nanoparticles and ultra-short femtosecond/picosecond laser pulses&amp;#39; interaction holds great interest in laser nanomedicine. By using appropriate soliton input power and MRRs parameters, desired spatial and temporal signals can be generated over the spectrum. Results show that short temporal and spatial solitons pulse with FWHM = 712 fs and FWHM = 17.5 pm could be generated. The add/drop filter system is used to generate the high-capacity, ultra-short soliton pulses in the range of nanometer/second and picometer/second.
International Journal of Nanomedicine, 2011
A new optical trapping design to transport gold nanoparticles using a PANDA ring resonator system... more A new optical trapping design to transport gold nanoparticles using a PANDA ring resonator system is proposed. Intense optical fields 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 artificial 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.
International Journal of Nanomedicine, 2011
Optoelectronic Devices and Integration II, 2007
Coupled 1X2 Single Mode Fiber (SMF-28e®) is successfully fabricated using a slightly unstable tor... more Coupled 1X2 Single Mode Fiber (SMF-28e®) is successfully fabricated using a slightly unstable torch flame at a temperature range 800°C to 1350°C by injecting hydrogen gas flowing at pressure of 1 bar. The fiber structure and geometry are investigated for both core and cladding before and after fusion. Coupled fiber is studied using Field Emission Scanning Electron Microscopy (FESEM) and
Plasma Sources Science and Technology, 2001
Nitrogen plasmas at atmospheric pressure produced by 2.45 GHz microwaves at a power density of ap... more Nitrogen plasmas at atmospheric pressure produced by 2.45 GHz microwaves at a power density of approximately 10 MW m-3 have a degree of ionization less than about 10-7. Nevertheless they have interesting and potentially important effects on polymer and metal surfaces exposed to them. An experimental programme is underway to identify the active species in the plasma and its afterglow. This paper describes a simplified model of the chemical kinetics in the plasma that allows species concentrations to be estimated in a range of conditions, for comparison with experimental data. It predicts a high degree of dissociation combined with low gas temperature in microwave-generated plasmas.
Optik - International Journal for Light and Electron Optics, 2010
Fabrication of single-mode fiber coupler by heating fibers on a flame is very common and popular.... more Fabrication of single-mode fiber coupler by heating fibers on a flame is very common and popular. However, controlling the input and the output power quantities of the fiber coupling process is neither easy nor similar. Power losses occur at the coupling length as the effect of the geometry and structure of fibers during and after fusion. In application, the power losses will affect sensor devices, eg optical switch. This paper proposes power splitting into the second fiber junction as a new model by deriving and integrating the coupling power with ...
Optik - International Journal for Light and Electron Optics, 2010
We propose a simple kinetic model that can be used to improve the coupling coefficient value of a... more 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 ...
Microwave and Optical Technology Letters, 2010
the notch band and UWB passband are 2.4 dB and 2.6 dB, respectively. For the notch band, MAR of t... more the notch band and UWB passband are 2.4 dB and 2.6 dB, respectively. For the notch band, MAR of the transmission skirt is 32.94 dB/GHz calculated from 5.34 GHz with À3 dB to 6.24 GHz with À14.6 dB. The inevitable insertion loss observed in operation frequency higher than 5 GHz can be improved by replacing the substrate with other materials having a smaller loss tangent than that of FR4. lists the performance comparison among the fabricated UWB-BPF and other filters in previous publications. It is shown that the proposed UWB-BPF adopting C-shaped DGS structure has the advantage of miniaturization.
Abstract—We propose an interesting result of the trapped multi photons distribution within a fibe... more Abstract—We propose an interesting result of the trapped multi photons distribution within a fiber Bragg grating. The trapped photons are confined by the potential well, which introduce the motion of photons in a fiber Bragg grating affected by multi perturbations. The external perturbations are defined as series of nonlinear parametric in terms of potential energy. This investigation is developed by using the nonlinear couple mode equations and under Bragg resonance condition where the initial frequency of the light, ω0 is the same value as the ...
Journal of Applied Science Research-" Estimation of coupling coefficient and refractive index", 2008
Fiber couplers are widely used in telecommunication and industry as a passive splitting power dev... more Fiber couplers are widely used in telecommunication and industry as a passive splitting power device. The effective power coupling and transmitting from one fiber to another is mainly determined by both coupling length and coupling coefficient. Coupling length can be calculated directly but for coupling coefficient it depends upon the refractive index and separation fiber axis. After fusion processes of two SMF-28e® couplers, the refractive index is unknown due to change in the radius of fiber (rcladd< 40ï m and rcore< 1.5 ï m). ...
International Journal of Light and Electron Optics, 2009
International Journal for Light and Electron Optics, 2009
PIERS PROCEEDING 2010 Xi’an, Progress In Electromagnetics Research Symposium, 2010
We propose an interesting result of the trapped multi photons distribution within a fiber Bragg g... more 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 ...
Proc. of 2nd Topical Meeting on Lasers and Optoelectronics, 2010
A. Fadhali, Mohamed MA (2010) Penetration depth estimation for stainless steel 304L using Pulsed ... more A. Fadhali, Mohamed MA (2010) Penetration depth estimation for stainless steel 304L using Pulsed Nd : YAG laser spot micro welding. In: 2nd Topical Meeting on Lasers and Optoelectronics (2nd TMLO), 2010, Terengganu. ... Full text not available from this repository. ... Universiti Teknologi Malaysia Institutional Repository is powered by EPrints 3 which is developed by the School of Electronics and Computer Science at the University of Southampton. More information and software credits.