期刊
APPLIED PHYSICS LETTERS
卷 95, 期 22, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.3269998
关键词
energy gap; gallium compounds; III-V semiconductors; indium compounds; optical constants; optical materials; optical waveguides; photonic crystals; Q-factor; self-phase modulation; two-photon processes
资金
- European Commission
- Fulbright Grant
- National Science Foundation
- New York State Foundation for Science, Technology and Innovation
We have established a new material, indium gallium phosphide, lattice matched to gallium arsenide, for two-dimensional photonic crystals at 1.55 mu m. We have demonstrated single-mode cavities with intrinsic Q-factor larger than one million and achieved very large self-phase-modulation coefficient 1.1x10(3) W(1) m(-1) in line-defect waveguides. Importantly, the material band gap is such that two-photon absorption, E(g)>2h omega, is completely suppressed at this important telecommunications wavelength.
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