[Seminar] Selective nanoparticle manipulation using two color techniques with a nanofiber

Title: Selective nanoparticle manipulation using two color techniques with a nanofiber

Speaker: Associate Professor Mark Sadgrove
Physics Department, Tokyo University of Science, Japan

Abstract:
I will discuss some recent results regarding the use of a two-color, counter-propagating nanofiber mode technique to selectively trap or transport metal nanoparticles according to their size. Although the two color technique shares some similarities with the well established two color traps for atoms using a nanofiber, to the best of my knowledge the present method is unique in that it relies on the behavior of the modes in the fiber taper to achieve a trapping potential.
The difference in resonant wavelengths of the metal nanoparticles leads to a dichotomous regime in which one particle size can be trapped, while the other is transported - effectively a sieve where the size of the particles retained and the size of those which pass through is set by the relative mode power. The results are arxived, but still unpublished, and constructive comments and criticism are most welcome.

Reference: https://arxiv.org/abs/2102.04735

Meeting URL:     https://oist.zoom.us/j/94551241074?pwd=ZFZTc2MxSW5KM1lXZG5NUXJDZFdtQT09&from=addon

Meeting ID:     945 5124 1074
Passcode:    987821