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    Ultra-short laser pulse generated by a microring resonator system for cancer cell treatment
    (2013-06-10)
    Jalil, M. A.
    ;
    Ong, C. T.
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    Saktioto, T.
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    Daud, S.
    ;
    Aziz, M. S.
    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. Copyright © 2013 Informa Healthcare USA, Inc.
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    Acne vulgarism treatment using ultra-short laser pulse generated by micro- and nano-ring resonator system
    (2013-04-01)
    Jalil, M. A.
    ;
    Phelawan, J.
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    Aziz, M. S.
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    Saktioto, T.
    ;
    Ong, C. T.
    Acne vulgaris is adebilitating dermatologic disease, and is conventionally treated by laser therapy using a microring resonator system. An evolving understanding of laser-tissue interactions involving Propioni bacterium acneproducing porphyrins, and the development of lasers to target the sebaceous glands, has led to the development of an escalating number of laser light for acne treatment. The results show that the full width at half maximum of the proposed laser pulse of 0.15 nm can be generated using a microring resonator system. The power of the laser is 200 W and the wavelength laser is 1,032 nm, which is proposed as a treatment of acne vulgaris diseases. Copyright © 2013 Informa Healthcare USA, Inc.
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    Generation of THz frequency using PANDA ring resonator for THz imaging
    (2012-12-05)
    Jalil, M. A.
    ;
    Abdolkarim, Afroozeh
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    Saktioto, T.
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    Ong, C. T.
    ;
    Yupapin, Preecha P.
    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. © 2012 Jalil et al.
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    Drug trapping and delivery for Alzheimer's diagnosis
    (2012-10-01)
    Jalil, M. A.
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    Kamoldilok, Surachart
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    Saktioto, T.
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    Ong, C. T.
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    Yupapin, Preecha P.
    In this investigation, a new design based on a PANDA ring resonator as an optical trapping tool for tangle protein, molecular motor storage, and delivery is proposed. The optical vortices are generated and the trapping mechanism is controlled in the same way as the conventional optical tweezers. The trapping force is produced by a combination of the gradient field and scattering photons. The required molecular volume is trapped and moved dynamically within the molecular network. The tangle protein and molecular motor can be transported and delivered to the required destinations for Alzheimer's diagnosis by molecular buffer and bus network. © 2012 Informa Healthcare USA, Inc.