Linear and nonlinear optical properties of one-dimensional photonic crystals containing ZnO defects

Title
Linear and nonlinear optical properties of one-dimensional photonic crystals containing ZnO defects
Authors
Jung, S.G.; Hwangbo, C.K.
Keywords
LASER ACTION, THIN-FILMS, PHOTOLUMINESCENCE, SILICON
Issue Date
2007-10
Publisher
AMER INST PHYSICS
Abstract
The linear and nonlinear optical properties of one-dimensional photonic crystals containing ZnO defects were studied by linear absorption spectroscopy and the femtosecond Z-scan technique. Photonic crystals containing ZnO defects, (Ta2O5/SiO2)(5)/ZnO/(SiO2/Ta2O5)(5), were prepared using electron-beam deposition and magnetron sputtering. The transmission spectra of these photonic crystals revealed a defect mode resonance and a broad photonic band gap. The observed transmission spectra could be described by applying the optical transfer matrix formalism to the multilayer structure. When compared with the Z-scan curve of the ZnO film, that of the resonant photonic crystal exhibited a larger transmittance dip. The enhancement of the nonlinear absorption in the resonant photonic crystal is due to the strong confinement of the optical field.
URI
http://dspace.inha.ac.kr/handle/10505/1674
ISSN
0021-8979
Appears in Collections:
College of Natural Science(자연과학대학) > Physics (물리학) > Journal Papers, Peports(물리학 학술논문, 보고서)
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