Mechanics of trapping of Light absorbing particles using Photophoretic Forces

Deshpande, Aniruddh Deepak (2022) Mechanics of trapping of Light absorbing particles using Photophoretic Forces. Masters thesis, Indian Institute of Science Education and Research Kolkata.

[img] Text (MS dissertation of Aniruddh Deepak Deshpande (17MS099))
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Photophertic Forces arise due to the interactions between gas molecules and particle interface. Thermal gradients across a particle induce a thermal force on the particle. These forces have been used to trap mesoscopic light absorbing particles using laser beams but the underlying mechanics of particles is not entirely clear. The trapping of these particles is a complex system that has a lot of experimental unknowns. In this project, we study the mechanics of trapping using numerical methods. We take a look at various numerical models which consider different particle geometries and different forces and torques. We demonstrate that rotations of the particle must play an important role in trapping dynamics.

Item Type: Thesis (Masters)
Additional Information: Supervisor: Prof. Ayan Banerjee
Uncontrolled Keywords: Light Absorbing Particles; Mechanics of Trapping; Particle Geometries; Photophertic Forces; Trapping Dynamics
Subjects: Q Science > QC Physics
Divisions: Department of Physical Sciences
Depositing User: IISER Kolkata Librarian
Date Deposited: 15 Sep 2023 07:33
Last Modified: 15 Sep 2023 07:33

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