Kocaman, S;
Chatterjee, R;
Panoiu, NC;
McMillan, JF;
Yu, MB;
Osgood, RM;
Kwong, DL;
(2009)
Observation of Zeroth-Order Band Gaps in Negative-Refraction Photonic Crystal Superlattices at Near-Infrared Frequencies.
PHYS REV LETT
, 102
(20)
, Article 203905. 10.1103/PhysRevLett.102.203905.
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Abstract
We present the first observations of zero-n over bar band gaps in photonic crystal superlattices consisting of alternating stacks of negative-index photonic crystals and positive-index dielectric materials in the near-infrared range. Guided by ab initio three-dimensional numerical simulations, the fabricated nanostructured superlattices demonstrate the presence of zeroth-order gaps in remarkable agreement with theoretical predictions across a range of different superlattice periods and unit cell variations. These volume-averaged zero-index superlattice structures present a new type of photonic band gap, with the potential for complete wave front control for arbitrary phase delay lines and open cavity resonances.
| Type: | Article |
|---|---|
| Title: | Observation of Zeroth-Order Band Gaps in Negative-Refraction Photonic Crystal Superlattices at Near-Infrared Frequencies |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.102.203905 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.102.203905 |
| Language: | English |
| Additional information: | © 2009 The American Physical Society |
| Keywords: | EXPERIMENTAL-VERIFICATION, HANDED MATERIALS, INDEX, METAMATERIALS, LIGHT, PERMEABILITY, PROPAGATION, SUPERLENS |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng |
| URI: | https://discovery.ucl.ac.uk/id/eprint/142164 |
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