Investigation on ARROW-Based Photonic Crystal Waveguide Devices and 3D Copper Photonic Crystals
|關鍵字:||光波導;光子晶體;金屬;抗諧振反射光波導結構;optical waveguides;photonic crystals;metal;antiresonant reflecting optical waveguide structures|
|摘要:||本論文提出抗諧振反射光波導(ARROW)結構之光子晶體波導，在橫向和縱向分別以光子能隙(photonic band gap)和抗諧振反射作為導光的機制，以利和單模光纖的耦合。論文中介紹模擬分析和設計元件所用的方法，探討抗諧振反射光波導結構的模態特性，以及二維光子晶體的光子能帶和傳輸特性，結合這兩種元件的優勢，設計抗諧振反射光波導(ARROW)結構之光子晶體波導並分析其傳輸特性，在此結構上設計60度和120度大角度彎折結構與Y型分支波導(Y-branch waveguide)等重要元件，以大幅縮小光子積體電路(photonic integrated circuits)的尺寸。
The photonic crystal slab waveguides based on antiresonant reflecting optical waveguide (ARROW) structures are proposed for improving the butt-coupling efficiency with a single-mode fiber. Lightwaves propagating in this waveguide are confined by the photonic band gaps in lateral and antiresonance reflection in vertical. Numerical methods for analyzing and designing this devices are introduced. Modal characteristics of the ARROW structures are revealed. The photonic band structures and transmission behaviors of the two-dimensional photonic crystal waveguides are discussed. By combining the advantages of these two devices, the ARROW-based photonic crystal waveguides are analyzed and designed. In this platform, the important devices such as the 60, 120 sharp bends, and Y-branch waveguides are designed for substantially reducing the areas of the photonic integrated circuits. The three-dimensional copper photonic crystals with two feature sizes were fabricated layer-by-layer. The optical properties of the photonic band gaps for both structures have been investigated by experimental observation and simulation verification. With these devices, the suppression of the thermal emission in the ranges of band gaps and the narrow-band emission near the band-edge wavelengths have been experimentally observed.
|Appears in Collections:||Thesis|