Plasma spectra initiated on single, optically levitated, micron-sized droplets of a glycerine-saturated brine solution are presented. The temporal development of the droplet plasma is monitored by observing neutral and once-ionized carbon and neutral sodium emission, and that of the air plasma by once-ionized nitrogen emission. The dependence of the plasma on laser parameters, such as wavelength and irradiance, is discussed.
© 1988 Optical Society of America
A. Biswas, H. Latifi, L. J. Radziemski, and R. L. Armstrong, "Irradiance and laser wavelength dependence of plasma spectra from single levitated aerosol droplets," Appl. Opt. 27, 2386-2391 (1988)