59 citations · 161 across the 10 of their papers we have counts for
10 papers
Freely Suspended Nematic and Smectic Films and Free-Standing Smectic Filaments in the Ferroelectric Nematic Realm
Keith G. Hedlund, Vikina Martinez, Xi Chen +4
We show that stable, freely suspended liquid crystal films can be made from the ferroelectric nematic () phase and from the recently discovered polar, lamellar $\math…
Topological defect coarsening in quenched smectic-C films analyzed using artificial neural networks
Ravin A. Chowdhury, Adam A. S. Green, Cheol S. Park +2
Mechanically quenching a thin film of smectic-C liquid crystal results in the formation of a dense array of thousands of topological defects in the director field. The subsequent r…
Ideal Mixing of Paraelectric and Ferroelectric Nematic Phases in Liquid Crystals of Distinct Molecular Species
Xi Chen, Zhecong Zhu, Mitchell J. Magrini +6
The organic mesogens RM734 and DIO are members of separate molecular families featuring distinct molecular structures. These families, at the present time, are the only ones known…
Detection of Islands and Droplets on Smectic Films Using Machine Learning
Eric Hedlund, Keith Hedlund, Adam Green +4
Machine learning techniques have been developed to identify inclusions on the surface of freely suspended smectic liquid crystal films imaged by reflected light microscopy. The exp…
Coalescence of Islands in Freely-Suspended Smectic Films
Z. H. Nguyen, K. Harth, A. M. Goldfain +4
Smectic liquid crystal films a few molecular layers thick that are freely suspended in air are used as a model system to study the coalescence of fluids in two dimensions. High-spe…
End-to-End Machine Learning for Experimental Physics: Using Simulated Data to Train a Neural Network for Object Detection in Video Microscopy
Eric N. Minor, Stian D. Howard, Adam A. S. Green +2
We demonstrate a method for training a convolutional neural network with simulated images for usage on real-world experimental data. Modern machine learning methods require large,…
Experimental Studies of Two-dimensional Laminar Jet Flows in Freely Suspended Liquid Crystal Films
Kyle R. Ferguson, Evan Dutch, Zhiyuan Qi +7
Two dimensional (2D) laminar jet-----a stream of fluid that projected into a surrounding medium with the flow confined in 2D-----has both theoretical and experimental significance.…
Realization of hydrodynamic experiments on quasi-2D liquid crystal films in microgravity
Noel A. Clark, Alexey Eremin, Matthew A. Glaser +9
Freely suspended films of smectic liquid crystals are unique examples of quasi two-dimensional fluids. Mechanically stable and with quantized thickness of the order of only a few m…
Experimental Realization of an Incompressible Newtonian Fluid in Two Dimensions
Zhiyuan Qi, Cheol Soo Park, Matthew A. Glaser +2
The Brownian diffusion of micron-scale inclusions in freely suspended smectic A liquid crystal films a few nanometers thick and several millimeters in diameter depends strongly on…
Mutual diffusion of inclusions in freely-suspended smectic liquid crystal films
Zhiyuan Qi, Zoom Hoang Nguyen, Cheol Soo Park +5
We study experimentally and theoretically the hydrodynamic interaction of pairs of circular inclusions in two-dimensional, fluid smectic membranes suspended in air. By analyzing th…