title: Measuring extinction with digital holography: nonspherical particles and experimental validation.
abstract: Through simulations and experiment, this Letter shows how a particle's extinction cross section can be extracted from a digital hologram. Spherical and nonspherical particles are considered covering a range of cross-sectional values of nearly five orders of magnitude. The extracted cross sections are typically less than 10% in error from the true values. It is also shown that holograms encompassing a sufficiently large angular range of scattered light yield an estimate for the absorption cross section.
authors.forename: Matthew J
authors.initials: MJ
authors.lastname: Berg
authors.forename: Nava R
authors.initials: NR
authors.lastname: Subedi
authors.forename: Peter A
authors.initials: PA
authors.lastname: Anderson