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Investigation and Applications of Spin Orbit Interaction of Light in Optical Tweezers

Gupta, Ratnesh Kumar (2014) Investigation and Applications of Spin Orbit Interaction of Light in Optical Tweezers. Masters thesis, Indian Institute of Science Education and Research Kolkata.

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    Abstract

    In this project, I have studied the e�ects of the spin orbit interaction of light due to tight focusing in optical tweezers by developing a theoretical model to map the electric �eld distribution near the focal plane of the trap. The numerical modelling was done on the MATLAB platform and the results were studied. The results could explain the experimental observations verifying the formation of high intensity lobes due to anisotropic linear diattenuation. This model works also for the input beams having topological charges and with any kind of polarization. The model is then used to investigate the spin orbit interactions and spin hall shifts in several strati�ed systems. The task further is to improve the model to include evanescent waves in the calculation which has so far been neglected. Another task would be to study the optical binding e�ects which can be done by introducing a mesoscopic particle and its scattering in the model.

    Item Type: Thesis (Masters)
    Additional Information: Supervisor: Ayan Banerjee
    Uncontrolled Keywords: Electric Fi�eld; Light; Optical Tweezer; Spin Hall Eff�ect; Spin Orbit Interaction
    Subjects: Q Science > QC Physics
    Divisions: Department of Physical Sciences
    Depositing User: IISER Kolkata Librarian
    Date Deposited: 15 Jan 2015 13:09
    Last Modified: 15 Jan 2015 13:09
    URI: http://eprints.iiserkol.ac.in/id/eprint/213

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