Form Of Potential Well Research Articles

TRAPPING OF GOLD NANOPARTICLE AND POLYSTYRENE BEADS BY DYNAMIC OPTICAL TWEEZERS

Gold nanoparticles and polystyrene beads are very important to use in advanced nanoscopic optical trapping techniques to probe any biological system of interest. Multiple trapping of these particles with different diameters can be performed by an optical tweezers system employing dark soliton controlled by Gaussian pulse within a particular configuration of microring resonators. By controlling some parameters and input power of the system, dynamics of the tweezers can be tuned. Radiation pressure acting on the particles including gradient and scattering forces were theoretically measured as a function of normalized position from the center of the laser beam. In this work, the highest output signal in the form of potential well is recorded at 112.80 W corresponding to 1.6 mm wavelength. Sizes of the tweezers are found within the range of 20 nm and the highest value of the optical force is recorded at 895.70 pN. We have demonstrated that the gradient force component is dominant over particle size within Rayleigh regime, thus a good agreement with theory is found.

Optical Stretcher of Biological Cells Using Sub-Nanometer Optical Tweezers Generated by an Add/Drop Microring Resonator System

The design system consists of a nonlinear modified add/drop Microring Resonators (MRR) to build up optical tweezers in the form of potential wells is presented. The optical tweezers can be used for sub-nanometer objects trapping to form an optical stretcher used to deform the biological cells. The fabricated material used is InGaAsP/InP, which provide the required output signals. The optical tweezers can be formed by the dark soliton pulses and can be tuned and amplified using the Gaussian laser beam input. The optical dark soliton pulses with the central wavelengths range 1.4 to 1.55-m are fed into the system, collide with the input Gaussian laser beam at the add port and finally the optical tweezers with bandwidth of 4, 12 and 18 nm could be generated and used to trap sub-nanometer objects using a molecular buffer system. Interacting the tweezers holding the subnanometer objects with human tissue, influence the cellular surface of the cells by the generated forces. Therefore an optical stretcher can be formed to deform the biological cells of human tissue using optical tweezers.

Optical Buffer Application Used for Tissue Surgery Using Direct Interaction of Nano Optical Tweezers with Nano Cells

This paper presents a technique of abnormal cell removal using ultra short pulses of optical tweezers. This technique uses a Half Panda Ring Resonator (HPRR) made of nonlinear fiber optics to generate desired results, which are applicable to medical applications. This system consists of a centered ring resonator connected to smaller ring resonators on the left side which is a good candidate for nanoscale interferometer applications. The optical tweezers generated by the dark soliton propagating inside the system are in the form of potential wells. Optical tweezers can trap microscopic dielectric particles using radiation pressure of light. This technique has the unique ability to trap and manipulate molecules at the mesoscopic scale using molecular buffers. Optical tweezers with Full Width at Half Maximum (FWHM) of 3.58 nm interact with nano particles within the molecular buffer system, thus optical trapping occurs. Therefore the nano particles are used to be transmitted to a biological tissue in order to remove abnormal cells by direct collision, thus the collision of the particles will result in an exchange of energy and damage to the cells.

Nano Optical Tweezers Generation Used for Heat Surgery of a Human Tissue Cancer Cells Using Add/Drop Interferometer System

A system of add/drop can be used as an interferometer system to generate nano bandwidth of optical tweezers. Dark soliton-Gaussian control within the proposed system is analyzed. Optical tweezers have the unique ability to trap and manipulate particles at the mesoscopic scale. The proposed system can be applied to generate nano-sized bandwidth peaks of optical tweezers in the form of potential wells. The dynamic behavior of the tweezers occurred when the Gaussian laser pulse is added into the system. Here, tweezers with Full Width at Half Maximum (FWHM) of 12 nm could be generated. This technique is applicable for cellular surgery due to the precise setting and small diameter of the nano tweezers. Therefore, the interaction of the nano tweezers with injected gold nano particles contributes to transferring of heat to the abnormal cells leads to removal surgery process, thus tweezers can be used to selectively eliminate cellular components in individual cells.

Generation of potential wells used for quantum codes transmission via a TDMA network communication system

ABSTRACTThis paper proposes a technique of quantum code generation using optical tweezers. This technique uses a microring resonator made of nonlinear fibre optics to generate the desired results, which are applicable to Internet security and quantum network cryptography. A modified add/drop interferometer system called PANDA is proposed, which consists of a centred ring resonator connected to smaller ring resonators on the left side. To form the multifunction operations of the PANDA system—for instance, to control, tune and amplify—an additional Gaussian pulse is introduced into the add port of the system. The optical tweezers generated by the dark soliton propagating inside the PANDA ring resonator system are in the form of potential wells. Potential well output can be connected to the quantum signal processing system, which consists of a transmitter and a receiver. The transmitter is used to generate high‐capacity quantum codes within the system, whereas the receiver detects encoded signals known as quantum bits. Therefore, an entangled photon pair can be generated and propagated via an optical communication link such as a time division multiple access system. Here, narrower potential wells with a full‐width half‐maximum of 3.58 and 9.57 nm are generated at the through and drop ports of the PANDA ring resonator system, respectively, where the amplification of the signals occurs during propagation inside the system. Copyright © 2013 John Wiley & Sons, Ltd.

Molecular Transporter System For Qubits Generation

A molecular cryptography technique using optical tweezers, is proposed. The optical tweezer transports the molecules in the communication system. The optical tweezer generated by the dark soliton is in the form of a potential well. The dark soliton propagates inside nonlinear microring resonator (NMRR). Transportation of molecules is implemented when the dark soliton is used as input pulse. The input bright soliton control the output signal at the drop port of the system. Output optical tweezers can be connected to the quantum signal processing system consisting of transmitter and the receiver. The transmitter is used to generate the high capacity quantum codes within the series of MRR’s and an add/drop filter. The receiver will detect the encoded signals known as quantum bits. The transmitter will generate the entangled photon pair which propagates via an optical communication link. Here the smallest optical tweezer with respect to the full width at half maximum FWHM is 17.6 nm in the form of potential well is obtained and transmitted through quantum signal processor via an optical link. Key words: Internet security; optical tweezers; quantum cryptography; quantum signal processing; entangled photon pair