Morphology Dependent Resonances in Raman Spectra of Optically Levitated Microparticles: Determination of Radius and Evaporation Rate of Single Glycerol/Water Droplets by means of Internal Mode Assignment

Autor:	Jürgen Popp, K. Schaschek, Wolfgang Kiefer
Rok vydání:	1993
Předmět:	Chemistry General Chemical Engineering Optical levitation Analytical chemistry Radius Molecular physics Light scattering Physics::Fluid Dynamics symbols.namesake Radiation pressure symbols Particle size Laser power scaling Raman spectroscopy Refractive index
Zdroj:	Berichte der Bunsengesellschaft für physikalische Chemie. 97:1007-1011
ISSN:	0005-9021
DOI:	10.1002/bbpc.19930970809
Popis:	An experimental setup for studies of morphology dependent resonances (MDRs) in Raman spectra of optically levitated microdroplets is described. This instrumentation is used for the study of MDRs in the Raman spectra of glycerol/water (3:1) droplets. Furthermore we show how the MDRs observed in the Raman spectra and their change with time can be used to determine the radius and the index of refraction of single optically levitated droplets with very high accuracy. We further show how the results of this study can be used to calculate the efficiency factor of the radiation pressure and compare it with the experimental monitored laser power.
Databáze:	OpenAIRE
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