Über Lichtzerstreuung im Raume Wienerscher Interferenzen und neue, diesen reziproke Interferenzerscheinungen

Selényi, P.

doi:10.1002/andp.19113400803

Cited by 27 publications

(4 citation statements)

References 2 publications

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“…We identify the interference fringes in Fig. 2 as in-plane scattering distributions of Selényi rings [9]. These rings are known to be centered around the mean surface normal, with their angular position being independent of the angle of incidence.…”

Section: Single Rough Interfacementioning

confidence: 99%

“…For films with a thickness on the order of several wavelengths they were able to explain the periodic fringes they observed in the mean differential reflection coefficient through simple phase arguments. The patterns in the diffusely scattered light were shown to undergo a transition, with increasing surface roughness, from an intensity pattern exhibiting fringes whose angular positions are independent of the angle of incidence (Selényi rings [9]) to one with fringes whose angular positions depend on the angle of incidence (Quételet rings [7]) and eventually into a fringeless pattern with a backscattering peak, which is a signature of multiple scattering [10]. Although the Selényi rings are centered around the mean surface normal, with their position being independent of the angle of incidence, their amplitude, however, is modulated by the angle of incidence.…”

Section: Introductionmentioning

confidence: 99%

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Selective enhancement of Selényi rings induced by the cross-correlation between the interfaces of a two-dimensional randomly rough dielectric film

2018

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By the use of both perturbative and non-perturbative solutions of the reduced Rayleigh equation, we present a detailed study of the scattering of light from two-dimensional weakly rough dielectric films. It is shown that for several rough film configurations, Selényi interference rings exist in the diffusely scattered light. For film systems supported by dielectric substrates where only one of the two interfaces of the film is weakly rough and the other planar, Selényi interference rings are observed at angular positions that can be determined from simple phase arguments. For such single-rough-interface films, we find and explain by a single scattering model that the contrast in the interference patterns is better when the top interface of the film (the interface facing the incident light) is rough than when the bottom interface is rough. When both film interfaces are rough, Selényi interference rings exist but a potential cross-correlation of the two rough interfaces of the film can be used to selectively enhance some of the interference rings while others are attenuated and might even disappear. This feature may in principle be used in determining the correlation properties of interfaces of films that otherwise would be difficult to access.

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Section: Single Rough Interfacementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Selective enhancement of Selényi rings induced by the cross-correlation between the interfaces of a two-dimensional randomly rough dielectric film

2018

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“…We observe that the diffuse component of the MDRC for the correlated systems oscillates weakly around that of the uncorrelated system. The physical origin of these oscillations is similar to that of the Selényi rings occurring in rough dielectric films [29,32,33]. The reason for the less pronounced effect is that only a thin layer, of thickness ε⊥ , contributes to the average interference effect, on top of the background signal coming from the thick layer of thickness L − ε⊥ whose dielectric fluctuations are not correlated to the surface.…”

Section: B Genuine Volume Configurationmentioning

confidence: 54%

Single scattering of polarized light by correlated surface and volume disorder

Banon,

Simonsen,

Carminati

2020

Preprint

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We study light scattering by systems combining randomly rough surface and volume dielectric fluctuations. We introduce a general model including correlations between surface and volume disorders, and we study the scattering properties within a single scattering approach. We identify different regimes of surface and volume dominated scattering depending on length scales characterizing the surface and volume disorders. For uncorrelated disorders, we discuss the polarization response of each source of disorder, and show how polarimetric measurements can be used to separate the surface and volume contributions in the total measured diffusely scattered intensity. For correlated systems, we identify two configurations of volume disorder which, respectively, couple weakly or strongly to surface scattering via surface-volume cross-correlations. We illustrate these effects on different configurations exhibiting interference patterns in the diffusely scattered intensity, which may be of interest for the characterization of complex systems or for the design of optical components by engineering the degree of surface-volume correlations.

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“…Using the spacing between peaks in the moiré pattern, equal to L /2 n , we measured a spatial period of 4690 nm, accurate to within 3.8% of the theoretical value. Previous work has shown that when fluorescent molecules are placed close to a mirror, the emitting molecule acts as an oscillating dipole (an antenna) and that the reflected and unreflected parts of the emitted fluorescence wave interfere with each other, producing fringes from wide-angle interference 19 20 21 and oscillations in the fluorescence decay time 22 23 24 25 , with analytic expressions for the radiation patterns derived from electrodynamic theory 26 27 28 and modified further from the fixed-dipole amplitude assumption to model the fluorophore as a dipole of constant power and variable amplitude 29 30 . Subsequent work in this area studied the modulation of fluorescence intensity with distance from the mirror, and explained the modulation as a consequence of the interference effects of the excitation and of the emission being both present 31 .…”

Section: Resultsmentioning

confidence: 99%

Standing-wave-excited multiplanar fluorescence in a laser scanning microscope reveals 3D information on red blood cells

Amor

Mahajan

Amos

et al. 2014

Sci Rep

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Standing-wave excitation of fluorescence is highly desirable in optical microscopy because it improves the axial resolution. We demonstrate here that multiplanar excitation of fluorescence by a standing wave can be produced in a single-spot laser scanning microscope by placing a plane reflector close to the specimen. We report here a variation in the intensity of fluorescence of successive planes related to the Stokes shift of the dye. We show by the use of dyes specific for the cell membrane how standing-wave excitation can be exploited to generate precise contour maps of the surface membrane of red blood cells, with an axial resolution of ≈90 nm. The method, which requires only the addition of a plane mirror to an existing confocal laser scanning microscope, may well prove useful in studying diseases which involve the red cell membrane, such as malaria.

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Über Lichtzerstreuung im Raume Wienerscher Interferenzen und neue, diesen reziproke Interferenzerscheinungen

Cited by 27 publications

References 2 publications

Selective enhancement of Selényi rings induced by the cross-correlation between the interfaces of a two-dimensional randomly rough dielectric film

Selective enhancement of Selényi rings induced by the cross-correlation between the interfaces of a two-dimensional randomly rough dielectric film

Single scattering of polarized light by correlated surface and volume disorder

Standing-wave-excited multiplanar fluorescence in a laser scanning microscope reveals 3D information on red blood cells

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