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Journal of the Optical Society of Korea

Journal of the Optical Society of Korea

| PUBLISHED BY THE OPTICAL SOCIETY OF KOREA

  • Vol. 13, Iss. 2 — Jun. 25, 2009
  • pp: 286–293

Optimal Shape Design of Dielectric Micro Lens Using FDTD and Topology Optimization

Young-Seek Chung, Byung-Je Lee, and Sung-Chul Kim  »View Author Affiliations


Journal of the Optical Society of Korea, Vol. 13, Issue 2, pp. 286-293 (2009)


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Abstract

In this paper, we present an optimal shape design method for a dielectric microlens which is used to focus an incoming infrared plane wave in wideband, by exploiting the finite difference time domain (FDTD) technique and the topology optimization technique. Topology optimization is a scheme to search an optimal shape by adjusting the material properties, which are design variables, within the design space. And by introducing the adjoint variable method, we can effectively calculate a derivative of the objective function with respect to the design variable. To verify the proposed method, a shape design problem of a dielectric microlens is tested when illuminated by a transverse electric (TE)-polarized infrared plane wave. In this problem, the design variable is the dielectric constant within the design space of a dielectric microlens. The design objective is to maximally focus the incoming magnetic field at a specific point in wideband.

© 2009 Optical Society of Korea

OCIS Codes
(220.3620) Optical design and fabrication : Lens system design
(230.0230) Optical devices : Optical devices

History
Original Manuscript: April 3, 2009
Revised Manuscript: April 28, 2009
Manuscript Accepted: April 28, 2009
Published: June 25, 2009

Citation
Young-Seek Chung, Byung-Je Lee, and Sung-Chul Kim, "Optimal Shape Design of Dielectric Micro Lens Using FDTD and Topology Optimization," J. Opt. Soc. Korea 13, 286-293 (2009)
http://www.opticsinfobase.org/josk/abstract.cfm?URI=josk-13-2-286


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