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Wijnands, F.H.G.M.; Pendry, J. B.; García‐Vidal, F. J.; Bell, P. M.; Roberts, Pamela; Moreno, L. Martín

doi:10.1023/a:1018506222632

Cited by 50 publications

(22 citation statements)

References 17 publications

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“…The LMXRB Cygnus X-2 is a member of a binary system (binary period of 9.84 days), consisting of a low-magnetic-field neutron star and a late type low-mass (∼ 0.7 M ⊙ ) star V1341 Cyg [17,18,19]. It is classified as Z source, on the basis of its X-ray colour-colour spectral behaviour [20,21]. Its low-energy continuum spectrum, measured with the EXOSAT satellite, can be fitted with a Comptonization model (kT = 3.7 keV, optical depth τ = 9.4) plus a black body component (kT = 1.21 keV) [22].…”

Section: Cygnus X-2mentioning

confidence: 99%

High energy properties of X-ray sources observed with BeppoSAX

Frontera

Fiume²,

Malaguti³

et al. 1999

Nuclear Physics B - Proceedings Supplements

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Section: Cygnus X-2mentioning

confidence: 99%

High energy properties of X-ray sources observed with BeppoSAX

Frontera

Fiume²,

Malaguti³

et al. 1999

Nuclear Physics B - Proceedings Supplements

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“…This has been proved by several experiments, in particular the so-called quantum corral experiments 9 . Although one can formally generalize the definition of the electromagnetic LDOS by using the trace of the imaginary part of the Green's tensor 10 , it turns out that this definition does not yield the correct equilibrium electromagnetic energy density.…”

Section: Introductionmentioning

confidence: 99%

Definition and measurement of the local density of electromagnetic states close to an interface

et al. 2003

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We propose in this article an unambiguous definition of the local density of electromagnetic states (LDOS) in a vacuum near an interface in an equilibrium situation at temperature T . We show that the LDOS depends only on the electric field Green function of the system but does not reduce in general to the trace of its imaginary part as often used in the literature. We illustrate this result by a study of the LDOS variations with the distance to an interface and point out deviations from the standard definition. We show nevertheless that this definition remains correct at frequencies close to the material resonances such as surface polaritons. We also study the feasability of detecting such a LDOS with apetureless SNOM techniques. We first show that a thermal near-field emission spectrum above a sample should be detectable and that this measurement could give access to the electromagnetic LDOS. It is further shown that the apertureless SNOM is the optical analog of the scanning tunneling microscope which is known to detect the electronic LDOS. We also discuss some recent SNOM experiments aimed at detecting the electromagnetic LDOS.

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“…21 we will define the weighted local density of states (WL-DOS) ρ(z, ω, k ) by ρ(z, ω) = ρ(z, ω, k ) dk , thereby resolving the contribution at each k . In the near field (k ∼ 1/z ω/c), the WLDOS of an electric dipole is dominated by contributions from the p (TM) polariza-arXiv:1311.5812v2 [physics.optics] 29 Jan 2014 tion, given by [38,39]:…”

mentioning

confidence: 99%

Effectiveness of Thin Films in Lieu of Hyperbolic Metamaterials in the Near Field

2014

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We show that the near-field functionality of hyperbolic metamaterials (HMM), typically proposed for increasing the photonic local density of states (LDOS), can be achieved with thin metal films. Although HMMs have an infinite density of internally propagating plane-wave states, the external coupling to nearby emitters is severely restricted. We show analytically that properly designed thin films, of thicknesses comparable to the metal size of a hyperbolic metamaterial, yield an LDOS as high as (if not higher than) that of HMMs. We illustrate these ideas by performing exact numerical computations of the LDOS of multilayer HMMs, along with their application to the problem of maximizing near-field heat transfer, to show that single-layer thin films are suitable replacements in both cases.

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Untitled

Cited by 50 publications

References 17 publications

High energy properties of X-ray sources observed with BeppoSAX

High energy properties of X-ray sources observed with BeppoSAX

Definition and measurement of the local density of electromagnetic states close to an interface

Effectiveness of Thin Films in Lieu of Hyperbolic Metamaterials in the Near Field

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