ε-near-zero (ENZ) graded index quasi-optical devices: steering and splitting millimeter waves

Research output: Contribution to journalArticlepeer-review

Authors

Colleges, School and Institutes

External organisations

  • Universidad Pública de Navarra
  • Pennsylvania State University

Abstract

Graded index ε-near-zero (GRIN-ENZ) quasi-optical components such as beam steerers and power splitters are designed, simulated and analyzed. The GRIN-ENZ medium is realized using stacked narrow hollow waveguides whose infinite array shows the first transmission peak at 1.0002 THz. Several GRIN-ENZ beam steerers to channel a normal incident plane wave to different output angles (15, 45, 65 and 80°) with good impedance matching (low reflection) are analytically and numerically demonstrated using planar structures with a thickness of 5λ0=1500 μm along the z-axis. Moreover, symmetrical and asymmetrical power splitters are designed with output angles (±45°) and (-80, +35°), respectively.

Details

Original languageEnglish
Article number094009
JournalJournal of Optics
Volume16
Issue number9
Publication statusPublished - 3 Sep 2014

Keywords

  • epsilon-near-zero, metamaterials, quasioptical