Backward groove-regulated light wave resonance inside a subwavelength metallic slit

Jian-Shiung Hong, Kuan Ren Chen

Research output: Contribution to journalConference articlepeer-review

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 languageEnglish
Pages (from-to)1166-1167
Number of pages2
JournalInternational Conference on Metamaterials, Photonic Crystals and Plasmonics
Publication statusPublished - 2019
Event10th International Conference on Metamaterials, Photonic Crystals and Plasmonics, META 2019 - Lisbon, Portugal
Duration: 2019 Jul 232019 Jul 26

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering
  • Materials Science (miscellaneous)
  • Electronic, Optical and Magnetic Materials
  • Materials Chemistry

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