日時：

平成28年11月21日（月）　10:40～12:10

場所：

関西大学　千里山キャンパス 学術フロンティア・コア　3階会議室

講演：

"Optical Field Enhancement for Heat-Assisted Magnetic Recording System using Photonic Crystal Waveguide "
　　　　King Mongkut's University of Technology Thonburi
　　　　　　　　Assoc. Prof. Dr.　Rardchawadee Silapunt

講演内容：

A novel structure for the light delivery system in heat-assisted magnetic recording (HAMR) system is proposed. The structure consists of a 90°bending photonic crystal (PC) waveguide and a ridge dielectric waveguide taper coupler. Three-dimensional (3D) models of structures are built and simulated in order to determine light coupling and transmission efficiencies. Geometric parameters including taper length (LTP), coupler inlet width (WFW), and PC waveguide width (WWG) are investigated. The initial simulation shows that the transmission efficiency of over 90% can be achieved with the coupler integrated to the straight PC waveguide. However, the overall transmission efficiency is substantially reduced when the coupler is attached to the 90°bending PC waveguide. Our analysis shows that wave mode matching and light decay rate in the waveguide cavity are significant contributing factors. The transmission efficiency increases after some modification of the bending region.

参加費：

無料

申し込み：

不要

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