Erlangen 2018 – wissenschaftliches Programm

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SYMM: Symposium Micromachines

SYMM 1: Micromachines

SYMM 1.2: Hauptvortrag

Freitag, 9. März 2018, 14:00–14:30, RW HS

Levitated Nanoparticle Micromachines — •Nikolai Kiesel — VCQ, Faculty of Physics, University of Vienna, Austria

Optical traps for nano- and microparticles are useful tools in a large number of applications. Amongst these are recent demonstrations of micromachines that operate in an overdamped environment.

Decoupling such particles from their environment is a versatile approach to operate such machines in the less explored underdamped regime. In addition, cavity optomechanics allows to taylor a new, controlled environment with prospects to approach the quantum regime.

Here, I first briefly review thermodynamic processes that have been demonstrated experimentally in the underdamped regime with a focus on levitation. Optimal protocols for the operation of micromachines in this regime have recently been found. I will demonstrate how levitated cavity-optomechanics enables the implementation of such optimal protocols and report our experimental steps towards their realization. We will conclude with an outlook on future developments the all-optical control of nanoparticles may enable.