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碩士 === 國立中央大學 === 光電科學與工程學系 === 105 === Photonic Crystals are periodic dielectric or metal-dielectric structures. These applications are very extensive. Resonant cavity is a very practical application including one-dimensional and two-dimensional. In this paper, we discuss that two - dimensional pho...
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| Format: | Others |
| Language: | zh-TW |
| Published: |
2016
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| Online Access: | http://ndltd.ncl.edu.tw/handle/jqnz3b |
| Summary: | 碩士 === 國立中央大學 === 光電科學與工程學系 === 105 === Photonic Crystals are periodic dielectric or metal-dielectric structures. These applications are very extensive. Resonant cavity is a very practical application including one-dimensional and two-dimensional. In this paper, we discuss that two - dimensional photonic crystal resonator becomes a ring photonic crystal resonator.
According the band structure of photonic crystal to adjust the angle in each ring between the dielectric cylinder. Changing filling fraction and layers will help us to get high quality factor.
We use Electromagnetic wave module in Comsol simulation software to get eigenvalue. In finding eigenvalues, we choose the most clearly and the biggest Q factor to use. We analysis TE mode and TM mode separately. After comparing two mode, we found that both two modes’s Q factor are up to millions.But some of Q factors are just low to million. It can be known that there have some conditions to get high Q.
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