Open AccessYoung’s interference of double metallic nanoslit with different widths
Author(s) -
Haofei Shi,
Xiangang Luo,
Chunlei Du
Publication year - 2007
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.15.011321
Subject(s) - interference (communication) , surface plasmon polariton , optics , surface plasmon , plasmon , materials science , wavelength , localized surface plasmon , phase (matter) , resolution (logic) , physics , telecommunications , channel (broadcasting) , quantum mechanics , computer science , artificial intelligence
A type of metallic double nanoslit with different widths is proposed to investigate Young's interference mediated by surface plasmon polaritons (SPPs). Numerical calculations show that the Young's interference order could be shifted readily by adjusting the width difference between two slits. Further calculations indicate that the interference order shift related to the additional phase retardation is caused by the distinct surface plasmon mode in two slits. Since the surface plasmon mode in a nanoslit is extremely sensitive to the incident wavelength, it suggests a potential way of ultrahigh resolution spectral analysis via measuring the shift of Young's interference.