Abstract
Grooves patterned at the exit side of a subwavelength metallic slit are known to manipulate the transmitted light profile. We study the groove effect and find a backward coupling mechanism. The transmitted light is scattered by the grooves and then re-enters into the slit. This cause a phase delay of the reflected film thickness. The traveling wave in the slit can be more in phase to significantly enhance the transmission.
Original language | English |
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Pages (from-to) | 1166-1167 |
Number of pages | 2 |
Journal | International Conference on Metamaterials, Photonic Crystals and Plasmonics |
Publication status | Published - 2019 |
Event | 10th International Conference on Metamaterials, Photonic Crystals and Plasmonics, META 2019 - Lisbon, Portugal Duration: 2019 Jul 23 → 2019 Jul 26 |
All Science Journal Classification (ASJC) codes
- Electrical and Electronic Engineering
- Materials Science (miscellaneous)
- Electronic, Optical and Magnetic Materials
- Materials Chemistry