Browsing by Author "Mustafizur Rahman Rana"

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    Optical Pulling and Pushing Force for Dielectric, Chiral and Plasmonic nano particles
    (North South University, 2020-12-31) Mustafizur Rahman Rana; Syeda Prioty Sultana; Fabiha Rahman Efa; Dr. Mahdy Rahman Chowdhury; 1631517043; 1620138043; 1620981043
    Optical pulling has been demonstrated on dielectric, plasmonic and chiral nanostructures using dielectric substrate. On the plasmonic substrate, the optical pushing force is also visible. For a specific wavelength range, optical pulling force can be obtained on a dielectric substrate. For estimating optical pulling force on nanostructures, we devised a general framework based on the time averaged Minkowski stress tensor. There is also a demonstration of a failed attempt to locate pulling force on a plasmonic substrate. The pulling force in dielectric particles on dielectric substrate is caused by the interference of electric quadrupole and dipole. The recoil force in a chiral particle can be used to create pulling force. The pulling force in plasmonic particles is caused by the current density.