Experimental study of scattering from characterized random surfaces

O’Donnell, K. A.; Mendez, Eugenio Rafael Mendez

doi:10.1364/josaa.4.001194

Cited by 355 publications

(65 citation statements)

References 44 publications

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“…The profound experiments by O'Donnell and Mendez (1987) confirmed the existence of the backward enhancement for random rough surfaces. They also measured negative linear polarization, although they used different terminology and were not familiar with the observations of solar system dust particles.…”

Section: Rough Surfacesmentioning

confidence: 60%

“…The relevance of the coherent backscattering mechanism to the opposition effect of the Moon was mentioned but ignored in studies of electromagnetic scattering (e.g., Kuga andIshimaru 1984, O'Donnell andMendez 1987). In the solar system context, it was introduced as a possible explanation for the opposition effect and negative polarization by Shkuratov (1988bShkuratov ( , 1989 and Muinonen (1989ab, 1990.…”

Section: Introductionmentioning

confidence: 99%

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Coherent Backscattering by Solar System Dust Particles

Muinonen¹

1994

Symp. - Int. Astron. Union

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Abstract. I review progress in interpreting the opposition effect and negative linear polarization observed for solar system dust particles. The so-called coherent backscattering mechanism has recently been introduced to explain the observations. However, fundamental difficulties in theoretical modeling still prevent quantitative interpretation. I also review some of the key observations that questioned the hitherto widely accepted mutual-shadowing explanation for the opposition effect. I summarize previous theoretical and experimental work on the opposition effect and negative polarization.

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Section: Rough Surfacesmentioning

confidence: 60%

Section: Introductionmentioning

confidence: 99%

Coherent Backscattering by Solar System Dust Particles

Muinonen¹

1994

Symp. - Int. Astron. Union

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“…The surface of a real particle always has some degree of roughness, that may risk to invalidating the specular approximation. O'Donnell and Mendez (1987) have investigated the effect of surface roughness, e.g., by considering surfaces with a Gaussian height distribution (standard deviation σ = 2.27 µm) that was illuminated by λ = 0.633 µm and λ = 10.6-µm light. They found that the reflected light had a Gaussian-like spread when plotted as a function of scattering angle, but that the radiation still peaked at the angle of specular reflection for a large range of incident angles, i.e., remained quasi-specular.…”

Section: Properties Of Isolated Grainsmentioning

confidence: 99%

On the Light-Absorbing Surface Layer of Cometary Nuclei I. Radiative Transfer

Davidsson

Skorov

2002

Icarus

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“…Over the years, however, the realization has arisen that spatial inhomogeneities that scatter light have advantageous properties and allow applications that are otherwise impossible, for instance, an optical diffuser or a high-numerical aperture objective [2][3][4]. While both the know-how of and the control over optics that strongly scatters light has greatly advanced [5][6][7][8][9][10], the state-of-the-art is much less developed regarding optical systems that also strongly absorb light (or even re-emit light of a different color), even though important application fields occur in this regime, for instance solid-state lighting [11][12][13], biomedical optics [14][15][16][17][18][19], or powder technology [20][21][22].…”

Section: Introductionmentioning

confidence: 99%

Analytical modeling of light transport in scattering materials with strong absorption

Meretska¹,

Uppu²,

Vissenberg³

et al. 2017

Opt. Express

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Abstract:We have investigated the transport of light through slabs that both scatter and strongly absorb, a situation that occurs in diverse application fields ranging from biomedical optics, powder technology, to solid-state lighting. In particular, we study the transport of light in the visible wavelength range between 420 and 700 nm through silicone plates filled with YAG:Ce 3+ phosphor particles, that even re-emit absorbed light at different wavelengths. We measure the total transmission, the total reflection, and the ballistic transmission of light through these plates. We obtain average single particle properties namely the scattering cross-section σ s , the absorption cross-section σ a , and the anisotropy factor µ using an analytical approach, namely the P3 approximation to the radiative transfer equation. We verify the extracted transport parameters using Monte-Carlo simulations of the light transport. Our approach fully describes the light propagation in phosphor diffuser plates that are used in white LEDs and that reveal a strong absorption (L/l a > 1) up to L/l a = 4, where L is the slab thickness, l a is the absorption mean free path. In contrast, the widely used diffusion theory fails to describe this parameter range. Our approach is a suitable analytical tool for industry, since it provides a fast yet accurate determination of key transport parameters, and since it introduces predictive power into the design process of white light emitting diodes. 8190-8204 (2014). 30. To be sure, in a scattering system the degree of scattering is given by L/ s rather than L/ t r . Since in the vast majority of scattering systems the transport mean free paths exceeds the scattering mean free path ( t r ≥ s ) due to predominantly forward scattering [34], we consider our characterization to be on the safe side. 31. S. Chandrasekhar, Radiative transfer (Dover, New York NY, 1960). 32. M. Kaveh, Analogies in optics and micro electronics (Springer, Netherlands, 1991) 33.

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Experimental study of scattering from characterized random surfaces

Cited by 355 publications

References 44 publications

Coherent Backscattering by Solar System Dust Particles

Coherent Backscattering by Solar System Dust Particles

On the Light-Absorbing Surface Layer of Cometary Nuclei I. Radiative Transfer

Analytical modeling of light transport in scattering materials with strong absorption

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