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Journal Article
Reflection-type Spatial Amplitude Modulation of Visible Light based on a Sub-Wavelength Plasmonic Absorber
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- Authors
- Chi-Young Hwang, Yoonsik Yi, Choon-Gi Choi
- Issue Date
- 2016-03
- Citation
- Optics Letters, v.41, no.5, pp.990-993
- ISSN
- 0146-9592
- Publisher
- Optical Society of America(OSA)
- Language
- English
- Type
- Journal Article
- Abstract
- We present a method for reflection-type spatial amplitude modulation using a sub-wavelength plasmonic absorber structure that can operate in the visible region. We utilize a pixelated array of absorbing elements based on a two-dimensional sub-wavelength metal grating, and the reflectance of each pixel is controlled by simple structural modification. For the purpose of validation, numerical simulations were performed on an amplitude modulation hologram fabricated using our method.
- KSP Keywords
- Amplitude Modulation, Numerical simulation(Trnsys16), Plasmonic absorber, Reflection-type, Visible Light, Visible region, metal grating, structural modification, sub-wavelength, two-dimensional(2D)