AAAR 36th Annual Conference October 16 - October 20, 2017 Raleigh Convention Center Raleigh, North Carolina, USA
Abstract View
Single Airborne Aerosol Particle Raman And Cavity Ringdown Spectroscopy
CHUJI WANG, Zhiyong Gong, Yong-Le Pan, Gorden Videen, Mississippi State University
Abstract Number: 446 Working Group: Aerosol Physics
Abstract Due to the physical and chemical complexity of aerosol particles and the interdisciplinary nature of aerosol science that involves physics, chemistry, and biology, our knowledge of aerosol particles is rather incomplete; our current understanding of aerosol particles is limited by averaged (over size, composition, shape, and orientation) and/or ensemble (over time, size, and multi-particles) measurements. Physically, single aerosol particles are the fundamental units of any large aerosol ensembles. Chemically, single aerosol particles carry individual chemical components (properties and constituents) in particle ensemble processes. Therefore, study of single aerosol particles can bridge the gap between aerosol ensembles and bulk/surface properties and provide a hierarchical progression from a simple benchmark single component system to a mixed phase multicomponent system. Latest technological advances provide exciting new opportunities to study single aerosol particles and to further develop single aerosol particle instrumentation. We present updates on our recent studies of single airborne aerosol particles optically trapped in air using the optical-trap Raman and cavity ringdown spectroscopy.