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Nonlinear Optical Response of 1-D Photonic Crystals Fabricated by Using a Sol-Gel Method
- Authors
- Hwang, Jisoo; Kim, Min Jung; Wu, Jeong Weon; Lee, Seung Mook; Rhee, Bum Ku; Kwak, Ji Hoon; An, Ilsin
- Issue Date
- Nov-2006
- Publisher
- 한국물리학회
- Keywords
- Photonic crystal; SiO2; TiO2; Sol-gel; Nonlinear; Optical transmission; Kerr; Optical switching; Pump probe
- Citation
- Journal of the Korean Physical Society, v.49, no.5I, pp 2128 - 2131
- Pages
- 4
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- Journal of the Korean Physical Society
- Volume
- 49
- Number
- 5I
- Start Page
- 2128
- End Page
- 2131
- ISSN
- 0374-4884
1976-8524
- Abstract
- The picosecond nonlinear optical response in .ve-bilayered SiO2/TiO2 structures of one- dimensional photonic crystals fabricated by using a sol-gel method is reported. We observe nonlin- ear optical changes in the transmission at both bandgap edges, an 8 % decrease at the high-energy edge, and a 4:5 % increase at the low-energy edge. These changes correspond to a blue shift of the bandgap. The observed reponse originates from the optical nonlinearity of the TiO2 layer.
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