Dynamically controlled double-well optical potential for colloidal particles
arXiv:2204.09164 · doi:10.1109/SBFotonIOPC50774.2021.9461866
Abstract
This preliminary study presents a simple modulation scheme to dynamically create time-averaged optical potentials to trap colloidal particles using acousto-optical modulation. The method provides access to control experimentally relevant parameters of a tunable double-well potential. We show experimental data successfully adjusting the trapping distance in the range 20-2000 nm and discuss situations arising when reconstructing time-averaged optical potentials from trapped particle data. This is the first step towards studying colloidal particles in dynamically modulated optical potentials to explore the stochastic thermodynamics of mesoscopic systems and small-scale thermo-mechanical machines.
arXiv comment11 pages, 6 figures, SBFoton-IOPC-2021 conference
References in corpus (8)
- Direct imaging of a digital-micromirror device for configurable microscopic optical potentials
- Direct Measurement of Kramers Turnover with a Levitated Nanoparticle
- Experimental test of the differential fluctuation theorem and a generalized Jarzynski equality for arbitrary initial states
- Design strategies for optimizing holographic optical tweezers setups
- Experimental evidence of non-Gaussian fluctuations near a critical point
- Work and dissipation fluctuations near the stochastic resonance of a colloidal particle
- Optical disassembly of cellular clusters by tunable tug-of-war tweezers
- Generating arbitrary laser beam shapes through phase-mapped designed beam splitting