Photonic crystals as metamaterials

S Foteinopoulou - Physica B: Condensed Matter, 2012 - Elsevier
The visionary work of Veselago had inspired intensive research efforts over the last decade,
towards the realization of man-made structures with unprecedented electromagnetic (EM) …

Compact broadband polarization beam splitter based on multimode interference coupler with internal photonic crystal for the SOI platform

L Xu, Y Wang, E El-Fiky, D Mao… - Journal of Lightwave …, 2019 - ieeexplore.ieee.org
We experimentally demonstrate a compact broadband polarization beam splitter (PBS)
based on a multimode interference (MMI) coupler with internal photonic crystal (PC) for the …

Proposal for an ultracompact polarization-beam splitter based on a photonic-crystal-assisted multimode interference coupler

Y Shi, D Dai, S He - IEEE Photonics Technology Letters, 2007 - ieeexplore.ieee.org
An ultracompact polarization-beam splitter (PBS) combining a multimode interference (MMI)
coupler and some photonic crystal (PC) structures is presented. The MMI coupler is …

All-angle left-handed negative refraction in Kagomé and honeycomb lattice photonic crystals

R Gajić, R Meisels, F Kuchar, K Hingerl - Physical Review B—Condensed …, 2006 - APS
Possibilities of all-angle left-handed negative refraction in 2D honeycomb and Kagomé
lattices made of dielectric rods in air are discussed for the refractive indices 3.1 and 3.6. In …

On subwavelength and open resonators involving metamaterials of negative refraction index

S He, Y **, Z Ruan, J Kuang - New Journal of Physics, 2005 - iopscience.iop.org
Abstract A one-dimensional (1D) subwavelength resonator utilizing a left-handed material
(LHM) is first chosen as an example to show that for a reliable analysis, one should use the …

Negative-index imaging by an index-matched photonic crystal slab

E Schonbrun, T Yamashita, W Park, CJ Summers - Physical Review B …, 2006 - APS
We report negative-index imaging at near infrared wavelengths using a photonic crystal
(PC) with an effective index matched closely to air as the incident medium. A tapered …

Non-volatile MWIR/LWIR beam reconfigurability with all-dielectric metagratings comprising phase-change materials with a high-refractive-index shift

NL Tsitsas, S Foteinopoulou - Optical Materials Express, 2022 - opg.optica.org
We propose an all-dielectric grating paradigm comprising an optical-phase-change-material
(O-PCM), functional in the 5 μm to 10 μm spectral range. This system leverages the …

Direct observation of iso-frequency contour of surface modes in defective photonic crystals in real space

L Shi, H Yin, X Zhu, X Liu, J Zi - Applied Physics Letters, 2010 - pubs.aip.org
Direct observation of iso-frequency contours of surface modes in defective photonic crystals
in real space is demonstrated in a hybrid photonic and plasmonic crystals structure with …

Bloch-wave expansion technique for predicting wave reflection and transmission in two-dimensional phononic crystals

JA Kulpe, KG Sabra, MJ Leamy - The Journal of the Acoustical Society …, 2014 - pubs.aip.org
In this paper acoustic wave reflection and transmission are studied at the interface between
a phononic crystal (PC) and a homogeneous medium using a Bloch wave expansion …

Open cavity formed by a photonic crystal with negative effective index of refraction

Z Ruan, S He - Optics letters, 2005 - opg.optica.org
An open cavity formed by three 60° wedges of a photonic crystal with negative effective
index is designed and studied. The quality factor of the open cavity can be larger than 2000 …