Finite-difference time-domain study of Si nanorod arrays with UV and green light
Küçük Resim Yok
Tarih
2022
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Korean Physical Soc
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The finite-difference time-domain (FDTD) simulation on the absorption properties of Si nanorods with different spacings at UV and green light has been conducted. It was revealed that the enhanced absorption along the sidewalls of Si nanorods occurred, parallel to the light polarization directions, at UV-light while the green light is literally confined towards the nanorod center which leads to the V-shape absorption. The significant difference in absorption profile at two different illuminations is mainly due to the distinct origin of the light-matter interactions. For the UV light, the polarization induced local electric field in the gap between nanorods is responsible for the results observed. However, the confined prolonged absorption of the green light is attributed to the non-negligible total internal reflection inside Si nanorod waveguide.
Açıklama
Anahtar Kelimeler
Si nanorods, FDTD, Absorption, Electric field, Waveguide mode
Kaynak
Journal of the Korean Physical Society
WoS Q Değeri
Q4
Scopus Q Değeri
Q4
Cilt
81
Sayı
10
