Hollow Dielectric Cavities and Waveguides Based on Grating Reflectors
碩士 === 國立臺灣大學 === 光電工程學研究所 === 104 === In this studies, we show that the new type of hollow core dielectric cavities and waveguides. The structures consist of a circular grating reflector of high index material and low index air-core. Light is confined and guided inside the air-core by the high refl...
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| Format: | Others |
| Language: | zh-TW |
| Published: |
2016
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| Online Access: | http://ndltd.ncl.edu.tw/handle/12423528801025513344 |
| Summary: | 碩士 === 國立臺灣大學 === 光電工程學研究所 === 104 === In this studies, we show that the new type of hollow core dielectric cavities and waveguides. The structures consist of a circular grating reflector of high index material and low index air-core. Light is confined and guided inside the air-core by the high reflectance of circular grating reflectors that is differences in the traditional optical fiber. We hope to find the possibility to guide wave in low absorption loss medium by properly designing this kind of cavities and waveguides and be applied to high power transmission. We will first try to design he hollow core cavities that can be considered the grating reflectors under normal incidence. Light is reflected and confined at transverse direction by the high index grating reflector. In our simulation, we will change the index contrast of grating reflectors and the radius of air-core to compare the influence of Q factors. In addition to the case of hollow core cavities, we also try to study the waveguides which can be considered the incident waves has an angle between the circular grating reflectors wall. We will also change the index contrast of grating reflectors and the radius of air-core to compare the influence of attenuation constants
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