title: Determination of size changes of optically trapped gas bubbles by elastic light backscattering.
abstract: A technique for the determination of size changes of gas bubbles by means of Fabry-Perot resonances in elastic light backscattering and optical trapping is presented. A theoretical description of the interaction of a strongly focused laser beam with gas bubbles is also given. The differences in elastic light scattering for particles with a relative refractive index larger than one and for gas bubbles with a relative refractive index smaller than one are discussed in detail. The results of elastic light scattering experiments verify the theoretical considerations.
authors.forename: M
authors.initials: M
authors.lastname: Lankers
authors.forename: E E
authors.initials: EE
authors.lastname: Khaled
authors.forename: J
authors.initials: J
authors.lastname: Popp
authors.forename: G
authors.initials: G
authors.lastname: Röossling
authors.forename: H
authors.initials: H
authors.lastname: Stahl
authors.forename: W
authors.initials: W
authors.lastname: Kiefer