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Absorption and scattering of light by polydisperse aggregates
Abstract
The absorption, scattering, and differential scattering cross sections are presented for polydisperse aggregates of prescribed fractal dimension and uniform primary particle size. These optical properties are formulated for polydisperse aggregates in terms of the primary particle diameter, the appropriate moments of the discrete size distribution function, and the mean-square radius of gyration. The absorption and scattering cross sections are compared with Rayleigh theory in the small size limit and with the results of the computational simulations of Mountain and Mulholland [Langmuir 4, 1321 (1988)] for intermediate and large aggregates. The differential scattering cross sections are well correlated by the law of Guinier together with a power-law expression for the larger sizes. The cross sections that are described herein apply in particular to polydisperse fractallike aggregates that are formed by cluster-cluster aggregation and possess a size scale that is pertinent to laboratory experiments and industrial processes.
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Cited by
Bounding the role of black carbon in the climate system: A scientific assessment
Bond, T. C., Doherty, S. J., Fahey, D. W., Forster, P. M., Berntsen, T., DeAngelo, B. J., Flanner, M. G., Ghan, S., Kärcher, B., Koch, D., et al. (2013) · Journal of Geophysical Research: Atmospheres · doi:10.1002/jgrd.50171 · Cited by 6,385
Light Absorption by Carbonaceous Particles: An Investigative Review
Bond, T. C., & Bergstrom, R. W. (2006) · Aerosol Science and Technology · doi:10.1080/02786820500421521 · Cited by 2,980
Light Scattering by Fractal Aggregates: A Review
Sorensen, C. M. (2001) · Aerosol Science and Technology · doi:10.1080/02786820117868 · Cited by 1,199
UV-VIS-NIR spectral optical properties of soot and soot-containing aerosols
Schnaiter, M., Horvath, H., Möhler, O., Naumann, K.-H., Saathoff, H., & Schöck, O. W. (2003) · Journal of Aerosol Science · doi:10.1016/s0021-8502(03)00361-6 · Cited by 458
Michelsen, H. A., Schulz, C., Smallwood, G. J., & Will, S. (2015) · Progress in Energy and Combustion Science · doi:10.1016/j.pecs.2015.07.001 · Cited by 423
Metadata
- Authors
- Dobbins, R. A., & Megaridis, C. M.
- Venue
- Applied Optics
- Publisher
- Optica Publishing Group
- Published
- 1991-11-20
- Volume
- 30
- Issue
- 33
- Pages
- 4747
- ISSN
- 0003-6935 (ISSN-L)
- 1539-4522
- OpenAlex
- W2118612500
- Cited by
- 293
- References
- 0
- FWCI
- 4.35
- Type
- journal article
- Language
- en
- Open access
- closed
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- CoChat. (2026). Citation check: Absorption and scattering of light by polydisperse aggregates. https://app.cochat.ai/papers/10.1364/ao.30.004747
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- Dobbins, R. A., & Megaridis, C. M. (1991). Absorption and scattering of light by polydisperse aggregates. Applied Optics. https://doi.org/10.1364/ao.30.004747
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Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
