Plasmonic and metamaterial structures as electromagnetic absorbers

Y Cui, Y He, Y **, F Ding, L Yang, Y Ye… - Laser & Photonics …, 2014 - Wiley Online Library
Electromagnetic absorbers have drawn increasing attention in many areas. A series of
plasmonic and metamaterial structures can work as efficient narrowband absorbers due to …

Practical emitters for thermophotovoltaics: a review

R Sakakibara, V Stelmakh, WR Chan… - … of Photonics for …, 2019 - spiedigitallibrary.org
Thermophotovoltaic (TPV) systems are promising for harnessing solar energy, waste heat,
and heat from radioisotope decay or fuel combustion. TPV systems work by heating an …

Large-area, lithography-free super absorbers and color filters at visible frequencies using ultrathin metallic films

Z Li, S Butun, K Aydin - Acs Photonics, 2015 - ACS Publications
Nanostructured photonic materials enable control and manipulation of light at
subwavelength scales and exhibit unique optical functionalities. In particular, plasmonic …

Plasmonic metasurface for directional and frequency-selective thermal emission

D Costantini, A Lefebvre, AL Coutrot… - Physical Review …, 2015 - APS
Incandescent filaments and membranes are often used as infrared sources despite their low
efficiency, broad angular emission, and lack of spectral selectivity. Here, we introduce a …

Broadband perfect absorber based on one ultrathin layer of refractory metal

H Deng, Z Li, L Stan, D Rosenmann, D Czaplewski… - Optics letters, 2015 - opg.optica.org
Broadband perfect absorber based on one ultrathin layer of the refractory metal chromium
without structure patterning is proposed and demonstrated. The ideal permittivity of the metal …

Visible-near infrared ultra-broadband polarization-independent metamaterial perfect absorber involving phase-change materials

X Tian, ZY Li - Photonics Research, 2016 - opg.optica.org
We numerically demonstrate a novel ultra-broadband polarization-independent
metamaterial perfect absorber in the visible and near-infrared region involving the phase …

Solution of near-field thermal radiation in one-dimensional layered media using dyadic Green's functions and the scattering matrix method

M Francoeur, MP Mengüç, R Vaillon - Journal of Quantitative Spectroscopy …, 2009 - Elsevier
A general algorithm is introduced for the analysis of near-field radiative heat transfer in one-
dimensional multi-layered structures. The method is based on the solution of dyadic Green's …

Atomistic analysis of the impact of alloy and well-width fluctuations on the electronic and optical properties of InGaN/GaN quantum wells

S Schulz, MA Caro, C Coughlan, EP O'Reilly - Physical Review B, 2015 - APS
We present an atomistic description of the electronic and optical properties of In 0.25 Ga
0.75 N/GaN quantum wells. Our analysis accounts for fluctuations of well width, local alloy …

Spectral tuning of near-field radiative heat flux between two thin silicon carbide films

M Francoeur, MP Mengüç… - Journal of Physics D …, 2010 - iopscience.iop.org
Spectral distributions of radiative heat flux between two thin silicon carbide films separated
by sub-wavelength distances in vacuum are analysed. An analytical expression for the near …

Near-field radiative heat transfer enhancement via surface phonon polaritons coupling in thin films

M Francoeur, MP Mengüç, R Vaillon - Applied Physics Letters, 2008 - pubs.aip.org
We investigate near-field thermal radiation between a nanometric film and a bulk SiC using
fluctuational electrodynamics. Results show a narrow spectral band enhancement of the …