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標題: | 等向三維裂環共振器應用於環境感測 Environment Sensor Using Isotropic Vertical Split-Ring Resonator |
作者: | Jia-Wern Chen 陳家雯 |
指導教授: | 蔡定平(Din Ping Tsai) |
共同指導教授: | 呂宥蓉(Yu-Jung Lu) |
關鍵字: | 超穎材料,表面電漿子,直立式裂環共振器,完美吸收體,電漿子感測器, Metamaterials,Surface plasmon,Vertical split-ring resonators,Perfect absorber,Plasmonic Sensor, |
出版年 : | 2020 |
學位: | 碩士 |
摘要: | 超穎材料完美吸收體是近年來的新興元件,其中最常見的結構的組成為超穎材料與全反射層間以介電材料隔開,並利用超穎材料及其鏡像之間的感應耦合,引入了強電漿子場之限制,因此顯著提高了吸收強度,使得完美吸收體對於奈米感測器以及熱輻射計等發展有極大的突破性。 為本文使用電子束微影系統的二次曝光技術製作四重對稱的直立式裂環共振器。此設計在不同極化的入射光照射下皆能做為一個等向性的完美吸收體,而且其入射光不管是TE模態還是TM模態,入射角高達60度前都能夠擁有極高的吸收值。因直立式裂環共振器能做為一個環境折射率的感測器,並也提供一個有效率的方式在生物感測與光電應用上。 The metamaterial based perfect absorber is the emerging device in recent years. The commonly utilized structural configuration is incorporating a metamaterial array with a perfect reflective mirror separated by a dielectric spacer. Due to the inductive coupling between metamaterials and their mirror images, a strong plasmon field confinement is introduced and significantly enhances the absorption intensity. Perfect absorber provides a benefitting way for enhancing the efficiency in nanoplasmonic sensor, and bolometer. We use the second alignment technology in e-beam lithography to fabricate the four-VSRRs (Vertical split-ring resonators). It can be an isotropic perfect absorber which is by changing the polarization angles and angle of incidences. The absorption can be observed at a very high intensity even when the incident angle is up to 60˚ for both TE- and TM-mode. Furthermore, this perfect absorber using VSRRs can also be applied as a refractive index sensor, and therefore provides an efficient way for biosensor and optoelectronics applications. |
URI: | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/8476 |
DOI: | 10.6342/NTU202001193 |
全文授權: | 同意授權(全球公開) |
電子全文公開日期: | 2025-07-30 |
顯示於系所單位: | 物理學系 |
文件中的檔案:
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U0001-2906202016215400.pdf 此日期後於網路公開 2025-07-30 | 3.46 MB | Adobe PDF |
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