Photonic band tuning in two-dimensional photonic crystal slab waveguides by atomic layer deposition

被引：40

作者：

Graugnard, E. ^{[1
]}

Gaillot, D. P. ^{[1
]}

Dunham, S. N. ^{[1
]}

Neff, C. W. ^{[1
]}

Yamashita, T. ^{[1
]}

Summers, C. J. ^{[1
]}

机构：

[1] Georgia Inst Technol, Sch Mat Sci & Engn, Atlanta, GA 30332 USA

来源：

APPLIED PHYSICS LETTERS | 2006年 / 89卷 / 18期

关键词：

D O I：

10.1063/1.2360236

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The photonic bands of two-dimensional (2D) triangular lattice photonic crystal Si slab waveguides were statically tuned using low temperature atomic layer deposition (ALD) of TiO(2). Angular dependent reflectance measurements of bare and coated devices were well fitted by three-dimensional finite-difference time-domain calculations. The technique not only allows the physics of photonic band effects in 2D photonic crystals to be systematically studied but also demonstrates large static tuning and precise fine-scale control over band frequency and dispersion, with a frequency tuning range of 12% and precision of 0.005% per ALD cycle. Band tuning to achieve zero group velocity is demonstrated. (c) 2006 American Institute of Physics.

引用

页数：3

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