All-Optical Sorting and Separation of Rayleigh Objects from an eight-particle cluster

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creativework.keywordselectromagnetic radiation,
dc.contributor.advisorDr. Mahdy Rahman Chowdhury
dc.contributor.authorMusayed Ahmed
dc.contributor.authorMusa Talukder
dc.contributor.authorMD. AL-AMIN
dc.contributor.id1721560043
dc.contributor.id1711755643
dc.contributor.id1713002643
dc.coverage.departmentElectrical and Computer Engineering
dc.date.accessioned2025-08-10
dc.date.accessioned2025-08-10T05:21:56Z
dc.date.available2025-08-10T05:21:56Z
dc.date.issued2021-04-30
dc.description.abstractIn this paper we try to sort three different types of particles. Mainly we take 3 types of particles and total particles are 8, all with a radius of 100nm. Those particles are chiral, dielectric and plasmonic material on nanometer scale. We put the particles in two different optical set-ups. After falling light particles showing their characteristics. The incident light for both cases was projected from above with an incident angle of 45 degrees with horizontal x-axis. Under the influence of plane waves, our study shows that some particles are getting pulling force, some particles are pushing force and some particles are getting lateral force. Therefore, they are being trapped. And we can easily find out the particles. The light scattering was 45 degrees. Understanding the sort of particles from an eight particles cluster based on distinctive optical forces has not been detailed so distant. Such an identification of the sorts of diverse particles is called optical sorting. In most of the set ups, optical sorting has been detailed for sweep based sorting of Rayleigh sized single particles. In expansion, the thought of all optical sorting has never been connected to sort and partition Rayleigh objects from a blend of particles. In this report, two distinctive optical setups have been proposed. Enlightened by a directly polarized plane wave in a molecule cluster developed with chiral, plasmatic, and dielectric nanoparticles in an air medium (optical set-up 1), half drenched in water (optical set-up 2). At to begin with, by shifting the light wavelengths, we have appeared that optical sorting isn't conceivable for eight particles cluster when they are put oppositely beneath the light. Afterward, in the same molecule cluster in all setups light was illuminated at an angle of 𝜃 = 40 along the +X axis. By varying the wavelength of the light, it has been observed that the dielectric get counter-intuitive pulling constrain because of the current density of the nearby plasmonic particle changing from chaotic to linear state, plasmonic getting pushing constrain due to the transferred momentum of photon and chiral get lateral drive mainly due to the induced magnetic dipole on the chiral nanoparticle. Such optical sorting by utilizing three totally diverse strengths without using any chemical may open a totally novel way for molecule discovery, accumulation and the organization of layouts for organic and colloidal science within the close future
dc.description.degreeUndergraduate
dc.identifier.cd600000245
dc.identifier.urihttps://repository.northsouth.edu/handle/123456789/1351
dc.language.isoen_US
dc.publisherNorth-south University
dc.rights© NSU Library
dc.titleAll-Optical Sorting and Separation of Rayleigh Objects from an eight-particle cluster
dc.typeProject
oaire.citation.endPage45
oaire.citation.startPage1
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