ExSiTE Lab

Welcome to Patrick E. Hopkins’ research group homepage. Patrick is a Professor in Mechanical and Aerospace Engineering at the University of Virginia, with courtesy appointments in the Department of Materials Science and Engineering and the Department of Physics. Our group’s interests are in energy transport and coupled photonic interactions with condensed matter, soft materials, liquids, vapors, plasmas and their interfaces.  We use various optical thermometry-based experiments to measure the thermal conductivity, thermal boundary conductance, thermal accommodation, strain propagation and sound speed, optical properties, and electron, phonon, vibrational and polaritonic scattering mechanisms in a wide array of bulk materials and nanosystems. Patrick is the director of the ExSiTE Lab (Experiments and Simulations in Thermal Engineering) at UVA.

Group MemberPublication: Congrats to Kiumars Aryana for his two first author papers in Nature Communications interface effects on:
i) Thermal resistances of thin film GST
ii) Ultralow thermal conductivity of SiTe

Aryana, K., Gaskins, J.T., Nag, J., Stewart, D.A., Bai, Z., Mukhopadhyay, S., Read, J.C., Olson, D.H., Hoglund, E.R., Howe, J.M., Giri, A., Grobis, M.K., Hopkins, P.E., “Interface controlled thermal properties of ultra-thin chalcogenide-based phase change memory devices,” Nature Communications 12, 774 (2021). PDF (Supporting InformationSupporting Movie 1Supporting Movie 2).

Aryana, K., Stewart, D.A., Gaskins, J.T., Nag, J., Read, J.C., Olson, D.H., Grobis, M.K., Hopkins, P.E., “Tuning network topology and vibrational mode localization to achieve ultralow thermal conductivity in amorphous chalcogenides,” Nature Communications 12, 2817 (2021). PDF (Supporting Information).

ExSiTE Group at IX Park in downtown Charlottesville, VA, Summer 2021
Front Row (L to R): Professor Patrick Hopkins, Rafiqul Islam, Dr. Hans Olson, Dr. Ramya Mohan, Dr. Mahboobe Jassas, Sara Makarem, Dr. Eric Hogland, Kiumars Aryana
Middle Row (L to R): Milena Milich, Shafkat bin Hoque
Back Row (L to R): Dr. John Tomko, Dr. John Gaskins, Will Riffe, Will Hutchins, Emma Tiernan, Thomas Pfeifer, Connor Cole, Daniel Hirt

Take a virtual tour of the ExSiTE Lab

Video and pictures courtesy of Tom Daly Photography