Silicon Three-Dimensional Photonic Crystal and its Applications

LIN, SHAWN-YU ; FLEMING, JAMES G. ; LYO, SUNGKWUN K.

Sandia National Laboratories

关键词: Near Infrared Radiation;    Signal Conditioners;    Waveguides;    Line Defects;    36 Materials Science;   

DOI  :  10.2172/791892
RP-ID  :  SAND2001-3612
RP-ID  :  AC04-94AL85000
RP-ID  :  791892

美国|英语

来源: UNT Digital Library

【 摘 要 】

Photonic crystals are periodically engineered ''materials'' which are the photonic analogues of electronic crystals. Much like electronic crystal, photonic crystal materials can have a variety of crystal symmetries, such as simple-cubic, closed-packed, Wurtzite and diamond-like crystals. These structures were first proposed in late 1980's. However, due mainly to fabrication difficulties, working photonic crystals in the near-infrared and visible wavelengths are only just emerging. In this article, we review the construction of two- and three-dimensional photonic crystals of different symmetries at infrared and optical wavelengths using advanced semiconductor processing. We further demonstrate that this process lends itself to the creation of line defects (linear waveguides) and point defects (micro-cavities), which are the most basic building blocks for optical signal processing, filtering and routing.