Optical trap-cavity ringdown spectroscopy as a single-aerosol-particle-scope
Abstract
We report a single-aerosol-particle-scope using an optical trapping-cavity ringdown spectroscopy technique. The scope can not only view physical parameters such as size, motion, and restoring force constant of a single aerosol particle trapped in air but also display time-, particle-, or wavelength-resolved chemical properties such as single aerosol particle extinction. We demonstrate the scope by trapping and walking single carbon-nanotube particles of ∼50 μm in size and viewing those properties via changes of ringdown time. This single-aerosol-particle-scope offers a powerful tool to study both physical and chemical properties as well as their evolving dynamics.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Dec 14, 2015
- Source ID
- 10.1063/1.4937467
Entities
People
- Chuji Wang
- Gorden W. Videen
- Yong-Le Pan
- Zhiyong Gong
Organizations
- Army Research Office
- Mississippi State University
- United States Army Research Laboratory