Ashley R. Carter

TL;DR: This work overcame mechanical drift and achieved atomic-scale stabilization (0.1 nm) of an optical microscope in 3D by measuring the position of a fiducial mark coupled to the microscope cover slip using back-focal-plane (BFP) detection and correcting for the drift using a piezoelectric stage.

TL;DR: This work defines the algorithms for Drosophila larva phototaxis by quantifying the movements of individual animals responding to a battery of illumination conditions and finds that specific sensorimotor pathways that govern distinct light-evoked responses begin to segregate at the first relay after the photosensory neurons.

TL;DR: Atomic-scale tip-sample control is extended, previously restricted to cryogenic temperatures and ultrahigh vacuum, to a wide range of perturbative operating environments and is demonstrated over tens of minutes with a series of AFM images on transparent substrates.

TL;DR: Back-scattered detection (BSD) provides a precise method to locally measure and thereby actively control sample position for diverse applications, especially those with limited optical access such as scanning probe microscopy, and magnetic tweezers.

TL;DR: This work brings the benefit of atomic-scale resolution, currently limited to dual-beam trapping assays, along with enhanced force precision to the widely used, surface-coupled optical-trapping assay.