CUI Nai-di, LIANG Jing-qiu, LIANG Zhong-zhu, ZHOU Jian-wei, NING Yong-qiang, WANG Wei-biao. Design and fabrication of two-dimensional photonic crystal waveguides on silicon films[J]. Editorial Office of Optics and Precision Engineering, 2010,18(12): 2549-2556
CUI Nai-di, LIANG Jing-qiu, LIANG Zhong-zhu, ZHOU Jian-wei, NING Yong-qiang, WANG Wei-biao. Design and fabrication of two-dimensional photonic crystal waveguides on silicon films[J]. Editorial Office of Optics and Precision Engineering, 2010,18(12): 2549-2556 DOI: 10.3788/OPE.20101812.2549.
Design and fabrication of two-dimensional photonic crystal waveguides on silicon films
In order to fabricate two-dimensional photonic crystal waveguides on silicon films
the design method and fabrication techniques were investigated. Firstly
the TE bands of the two-dimensional square lattice and triangular lattice air hole structures were calculated by using the plane wave expansion method
and the two-dimensional triangular lattice air hole structure was chosen. Then
by adding a line defect
the photonic band gaps of the two-dimensional triangular lattice were calculated also by using the plane wave expansion method. The reasonable photonic band gap whose normalized frequency was 0.295 7 was chosen
and the structure parameters of two dimensional photonic crystal waveguides used in the 1.55 m were designed as the period of the lattice in 458 nm and the diameter of the air hole in 339 nm.Furthermore
the tolerances of structure paremeters were calculated as -3.95-5.65 nm. Finally
the photonic crystal waveguides were fabricated by using the focused ion beam etching. The testing shows that the period of the lattice is 463 nm
and the diameter of the hole is 344 nm
which are 5 nm larger than the design values
but still in the tolererce range.
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references
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