Fabrication of nonlinear photonic crystals by using the high permittivity dielectrics and the high temperature processes
Date Issued
2004
Date
2004
Author(s)
Lin, Wei-cheng
DOI
zh-TW
Abstract
This dissertation is organized into three parts: (i)an introduction to the theory of quasi-phase matching,(ii)the fabrication of two-dimensional periodically poled nonlinear crystal(2D NPC) ,and (iii) the high temperature process of lithium tantalate.
At first, the theory of nonlinear frequency conversion and quasi-phase matching is briefly introduced.
And then, several fabrication processes are introduced, including using the high permittivity material as insulator to make periodically poled structure, and using the surface domain inversion to make periodically poled structure. By doing so, a 500um thickness two dimensional periodically poled lithium niobate with 29.5um period and 12mm effective length is made.
Finally, the coercive field of lithium tantalite is observed dramatic decrease in the high temperature fabrication process. It provides the possibility to fabricate thicker 2D NPC at an elevated temperature.
Subjects
非線性光子晶體
鈮酸鋰
準相位匹配
nonlinear photonic crystal
Quasi-phase-matching
LiNbO3
Type
thesis
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