The optical coupling effects of glancing angle deposited SiO2-Metal nanohelix arrays

• Main Authors: Chia-Liang Yu, 游家良
• Other Authors: 任貽均
• Format: Others
• Language: zh-TW
• Published: 2018
• Online Access: http://ndltd.ncl.edu.tw/handle/z6yya7

碩士 === 國立臺北科技大學 === 光電工程系 === 106 === In this work, glancing angle deposition is applied to fabricate SiO2, and Ag nanohelix arrays.During deposition, the deposition angle and rate are fixed and the substrate spin rate is varied to grow an optimum nanohelix array. The SiO2 nanohelixes are jointed with metal nanohelixes to form SiO2-Ag nanohelixes.The optical coupling effect of SiO2 nanohelixes are measured by measuring the transmittance, reflectance and absorptance of SiO2-metal nanohelixes. Compared with one-turn Ag nanohelix array,SiO2(two-turn)-Ag(one-turn) nanohelix array has at least 15% higher reflectance than one-turn Ag nanohelix array. The wide-angle reflection reduction is also achieved by the capped SiO2 nanohelixes.