Multispectral small-angle light scattering from particles
Abstract
Using a supercontinuum laser, reflective optics, and a spatial filter, we measure two-dimensional small-angle light-scattering patterns for a variety of microparticles including spheres, salt, sand, and volcanic dust. The measurements are done at 13 wavelengths from 450–850 nm, where the absence of refractive optical elements minimizes the effects of chromatic aberration. Qualitative particle-material sensitivity is demonstrated by layering differently colored patterns. Last, the multispectral capability of our device demonstrates a new possibility to probe different q -space regimes for a given particle in a single measurement.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Jun 24, 2021
- Source ID
- 10.1364/ol.427580
Entities
People
- Edmundo Reynoso-lara
- Killian Aleau
- Lucas Paulien
- Matthew J. Berg
- Romain Ceolato
Organizations
- Air Force Office of Scientific Research
- Army Research Office
- Benemérita Universidad Autónoma de Puebla
- Kansas State University
- National Science Foundation
- Office National d'Études et de Recherches Aérospatiales