Abstract
The temperature- and bias-dependent properties of the defect mode in a one-dimensional photonic crystal (1D PC) containing a photonic-quantum-well (PQW) defect are theoretically investigated. The temperature dependence is studied by simultaneously incorporating thermal expansion and thermal-optical effects in the constituent layers. As the thickness and index of refraction of each layer are modulated by temperature, a tunable filter working in the visible region is proposed. The shift of transmittance peak per 100 °C is around 2 nm, depending on the value of m, which is the stack number of the PQW and ranges between 1 and 3 in our study. It is found that the third transmittance peak in the case of m = 3 is most sensitive to temperature (2.43 nm per 100 °C), whereas the second transmittance peak of m = 3 is the sharpest. The bias dependence is studied by considering the electro-optic effect of the defected layer. The shifts of transmittance peaks are found to be in the range of 0.129 ∼ 0.188 nm per 1 kV of applied voltage. Additionally, the second transmittance peak of m = 3 is most sensitive to voltage, and it is also the sharpest peak.
Original language | English |
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Pages (from-to) | 185-192 |
Number of pages | 8 |
Journal | Journal of Optoelectronics and Advanced Materials |
Volume | 14 |
Issue number | 3-4 |
Publication status | Published - 2012 |
Keywords
- Electro-optic effect
- Photonic crystal
- Photonic quantum-well
- Thermal effect
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Condensed Matter Physics
- Electrical and Electronic Engineering