A study of optical potential wells simulation by a modified nonlinear add-drop filter

การศึกษาบ่อศักย์เชิงแสงด้วยวิธีการปรับเปลี่ยนตัวกรองแสงแบบไม่เชิงเส้น

Name: Nathaporn Suwanpayak

LCSH: Quantum optics.

Othors: Applied Physics -- Thesis.

Othors: King Mongkut's Institute of Technology Ladkrabang. -- Applied Physics -- Thesis.

Abstract: This thesis presents the use of optical potential wells which can be generated by using a modified add-drop filter known as a PANDA ring resonator. It is formed by a series of ring resonators, where two rings are nonlinear material rings and formed beside of the center ring. Two side ring radii are smaller than the middle ring, which can be used to generate the high capacity signals, i.e. optical tweezers. In principle, the trapping force is formed by the optical tweezer when it is interacted with atom/molecule, in which the combination between the gradient and scattering forces can induce the trapping force. In this case, the trapping force is formed by the optical potential well/potential well, which they were generated by using the optical input such as dark-bright solitons and dark-Gaussian pulse, in which the valleys of the potential wells (force magnitudes) were generated and magnitude controlled by the input port Ei₁ and add port Ei₂. The center wavelengths were ranged from 1.4 -1.6 µm, and R˪ and Rr were varied. The obtained results have shown that the depths of the optical potential wells were decreased when ring radii of R˪ and Rr were increased. These optical tweezers can be stability trapped nanoparticles when the tweezer width is less than 60 nm. In addition, the depths (widths) of optical potential wells are proportional to the optical input intensities. In applications, the required atoms/molecules can be moved and transported dynamically on optical waveguide surface, which can be useful for drug delivery applications

King Mongkut's Institute of Technology Ladkrabang. Central Library

Address: Bangkok

Email: Lifelong@kmitl.ac.th

Name: Preecha Yupapin

Role: Thesis Advisor

Email : kypreech@kmitl.ac.th

Created: 2014

Modified: 2559-08-14

Issued: 2016-08-14

วิทยานิพนธ์/Thesis

application/pdf

CallNumber: Thesis N33s 2014

eng

DegreeName: Doctor of Philosophy (Applied Physics)

Level: Doctoral Degree

Descipline: Applied Physics

Grantor: King Mongkut's Institute of Technology Ladkrabang

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