Thomas Henighan

TL;DR: A magnetic-field-based trap that regulates the thermal fluctuations of superparamagnetic beads in suspension is presented, which enables the bead trajectories within the trap to be managed and easily varied between strong confinements and delocalized spatial excursions.

TL;DR: In this article, the authors used an x-ray free-electron laser to study the effect of fast and sharp variations of the charge density wave (CDW) lattice distortion, which they attributed to an inversion of the order parameter.

TL;DR: This work demonstrates that nearby surfaces and the non-linear elasticity of DNA can skew the distribution, leading to inaccurate position measurements which significantly affect the extracted DNA extension and mechanical properties, and develops a simple, robust and easily implemented method to correct for such mismeasurements.

TL;DR: In this article, the excited-state interatomic forces that connect photoexcited carriers to the nonequilibrium lattice dynamics in the prototypical Peierls-distorted material, bismuth, were determined by a constrained least-squares fit of a pairwise interatomic force model to the excited state phonon dispersion relation as measured by the time and momentum-resolved x-ray diffuse scattering.

TL;DR: In this paper, a substantial anomalous red shift in the energy of photons generated by nonlinear two-photon X-ray Compton scattering of 9 keV X-rays in beryllium at intensities of 4x1020 Watt/cm2 was observed.