Suppressed transmission of light through single slit in gold film

A new phenomenon of an obvious dip of the transmission from subwavelength slits can be obtained if we change the wavelength of the incident light in the visible regime is proposed. Theory shows that there exist maximum reflectivities if we change wavelengths for different slit widths. The theoretica...

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Bibliographic Details
Published in:Pramāṇa 2018-09, Vol.91 (3), p.1-4, Article 44
Main Authors: Su, Wei, Chen, Kaiquan, Yi, Tianan, Liu, Cong, Chen, Bingyan
Format: Article
Language:English
Subjects:
Astronomy
Astrophysics and Astroparticles
Finite difference method
Finite difference time domain method
Gold
Incident light
Observations and Techniques
Physics
Physics and Astronomy
Slits
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Summary:A new phenomenon of an obvious dip of the transmission from subwavelength slits can be obtained if we change the wavelength of the incident light in the visible regime is proposed. Theory shows that there exist maximum reflectivities if we change wavelengths for different slit widths. The theoretical results are consistent with both finite-difference time-domain (FDTD) simulations and experiments.
ISSN:0304-4289
0973-7111
DOI:10.1007/s12043-018-1607-0