Open AccessGeneration of aerosol-particle light-scattering patterns from digital holograms
Author(s) -
Ramesh Giri,
Claudia Morello,
Yuli W. Heinson,
Osku Kemppinen,
Gorden Videen,
Matthew J. Berg
Publication year - 2019
Publication title -
optics letters/optics index
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.524
H-Index - 272
eISSN - 1071-2763
pISSN - 0146-9592
DOI - 10.1364/ol.44.000819
Subject(s) - silhouette , optics , holography , light scattering , aerosol , scattering , wavelength , diffraction , particle (ecology) , digital holography , physics , forward scatter , mie scattering , computer science , artificial intelligence , geology , oceanography , meteorology
The similarity between the light-scattering pattern of a particle in the near-forward direction and diffraction from the particle's silhouette is investigated. Images of irregularly shaped free-flowing aerosol particles are obtained from digital hologram measurements, which are then binarized to yield a silhouette. Application of Huygens's principle to the silhouette generates an approximate scattering pattern, which when compared to the true measured pattern shows good agreement for particles much larger than the wavelength of light.