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NF-RAD

Title
NF-RAD: Near-Field Radiation Absorption and Scattering by Nanoparticles on Surfaces
Funding
EC | FP7 | SP3 | PEOPLE
Call
FP7-PEOPLE-IRG-2008
Contract (GA) number
239382
Start Date
2009/05/01
End Date
2012/04/30
Open Access mandate
no
Special Clause 39
no
Organizations
OZYEGIN UNIVERSITY OZUN
More information
Detailed project information (CORDIS)

 

  • Near- to far-field coherent thermal emission by surfaces coated by nanoparticles and the evaluation of effective medium theory

    Didari, A.; Mengüç, M. Pınar (2015)
    Projects: EC | NF-RAD (239382)
    Due to copyright restrictions, the access to the full text of this article is only available via subscription. Near-field thermal radiation may play significant role in the enhancement of energy harvesting and radiative cooling by new types of designer materials, which in turn can be crucial in the development of future devices. In this work, we present a case study to explore near- to far-field thermal emission and radiative flux from a thin polar SiC film coated by different size and sha...

    Near-field thermal emission between corrugated surfaces separated by nano-gaps

    Didari, A.; Mengüç, M. Pınar (2015)
    Projects: EC | NF-RAD (239382)
    Due to copyright restrictions, the access to the full text of this article is only available via subscription. Near-field thermal radiation with its many potential applications in different fields requires a thorough understanding for the development of new devices. In this paper, we report that near-field thermal emission between two parallel SiC thin films separated by a nano-gap, supporting surface phonon polaritons, as modeled via Finite DifferenceTime Domain Method (FDTD), can be enha...

    Discrete-dipole approximation with surface interaction: computational toolbox for MATLAB

    Loke, Vincent L. Y.; Mengüç, M. Pınar; Nieminen, T. A. (2011)
    Projects: EC | NF-RAD (239382)
    Due to copyright restrictions, the access to the full text of this article is only available via subscription. We describe a MATLAB toolbox that utilizes the discrete-dipole approximation (DDA) method for modelling light interaction with arbitrarily-shape scatterers in free space as well with planar surface interaction (DDA-SI). The range of applicable models range from optical micromanipulation, plamonics, nano-antennae, near-field coupling and general light interaction with scatterers ra...

    Analysis of near-field radiation transfer within nano-gaps using FDTD method

    Didari, A.; Mengüç, M. Pınar (2014)
    Projects: EC | NF-RAD (239382)
    Due to copyright restrictions, the access to the full text of this article is only available via subscription. Enhancement of near-field radiative emission via coupling of surface plasmons in nano-gaps formed between thin films is important for understanding and implementation of energy harvesting using nano-thermophotovoltaic cells. Design and construction of such cells need to be carried out along with detailed modeling studies, necessitating accurate calculation of near-field emission w...

    A Monte Carlo simulation for phonon transport within silicon structures at nanoscales with heat generation

    Wong, Basil T.; Francoeur, Mathieu; Menguc, M. Pinar (2011)
    Projects: EC | NF-RAD (239382)
    Nanoscale phonon transport within silicon structures subjected to internal heat generation was explored. A Monte Carlo simulation was used. The simulation procedures differed from the current existing methods in which phonons below a predefined “reference temperature” were not accounted to reduce memory storage and computational resources. Results indicated that the heat diffusion equation significantly underestimates temperature distribution at nanoscales in the presence of an external heat ...

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

    Francoeur, M.; Mengüç, M. Pınar; Vaillon, R. (2010)
    Projects: EC | NF-RAD (239382)
    Due to copyright restrictions, the access to the full text of this article is only available via subscription. 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-field flux between two layers of finite thicknesses in terms of film reflection and transmission coefficients is derived for the first time. The resulting equation clearly shows the resonant modes o...

    Coupling of near-field thermal radiative heating and phonon Monte Carlo simulation: Assessment of temperature gradient in n-doped silicon thin film

    Wong, B. T.; Francoeur, M.; Bong, V. N.-S.; Mengüç, M. Pınar (2014)
    Projects: EC | NF-RAD (239382)
    Due to copyright restrictions, the access to the full text of this article is only available via subscription. Near-field thermal radiative exchange between two objects is typically more effective than the far-field thermal radiative exchange as the heat flux can increase up to several orders higher in magnitudes due to tunneling of evanescent waves. Such an interesting phenomenon has started to gain its popularity in nanotechnology, especially in nano-gap thermophotovoltaic systems and ne...

    Coexistence of multiple regimes for near-field thermal radiation between two layers supporting surface phonon polaritons in the infrared

    Francoeur, M.; Mengüç, M. Pınar; Vaillon, R. (2011)
    Projects: EC | NF-RAD (239382)
    We demonstrate the coexistence of different near-field thermal radiation regimes between two layers supporting surface phonon polaritons (SPhPs) in the infrared. These regimes existwhen the distance of separation between the media d is much smaller than the dominant emission wavelength. This coexistence is noticed after computations of the near-field radiative heat transfer coefficient hr for silicon carbide films using fluctuational electrodynamics and following an asymptotic analysis of hr ...

    Near-field thermal radiation transfer by mesoporous metamaterials

    Didari, A.; Mengüç, M. Pınar (2015)
    Projects: EC | NF-RAD (239382)
    In this work, we investigate the impact of nano-scale pores within structured metamaterials on spectral near-field radiative transfer. We use Finite Difference Time Domain Method (FDTD) and consider uniform and corrugated SiC substrates filled with rectangular nano-scale vacuum inclusions having equivalent diameters of 10, 37 and 57 nm. We report the appearance of the secondary and tertiary resonance peaks at different frequencies as a function of changing pore diameter, which cannot be predi...
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