WebbHowever, existing optical trapping techniques using a single laser beam can trap only transparent particles (via the radiative pressure force) or absorbing particles (via the photophoretic force), but not particles of either type-limiting the utility of trapping-enabled aerosol characterization techniques. Webb1 maj 1989 · An analysis of the photophoretic force and velocity on aerosol particles in both the free molecular and slip-flow regimes is presented. Under the assumption of unpolarized incident radiation, absorption of radiation with the particle is formulated from Lorenz/Mie theory. For both the free molecular and slip-flow regimes, the functional ...
The photophoretic force - ScienceDirect
Webb14 apr. 2024 · Photophoretic force can transport particles in ambient gases due to light-induced nonuniform heating 8,9. However, upon a simple evaluation 9, the surface density of photophoretic forces: ... Webb17 jan. 2024 · We demonstrate photophoretic force-based optical trapping of multiple absorbing particles in air by loosely focusing a Gaussian beam with a series of convex … how is michael jackson kids white
Light-Induced Pulling and Pushing by the Synergic Effect of …
Webb27 jan. 2024 · Optical force, coming from momentum exchange during light-matter interactions, has been widely utilized to manipulate microscopic objects, though mostly … Webb1 apr. 2024 · Photophoretic force measurement on microparticles in binary complex plasmas. Frank Wieben, D. Block; Physics, Engineering. Physics of Plasmas. 2024; This article presents a method to measure the photophoretic force on microparticles in complex plasmas. Webb7 sep. 2010 · Photophoretic forces arise when radiation produces a temperature difference between an aerosol particle and the surrounding gas ( 11 – 13 ). The forces are most … highlands king city