2015 CAP Congress / Congrès de l'ACP 2015

Session

R3-1 Light-Matter Interactions (DAMOPC-DCMMP) / Interactions entre la lumière et la matière (DPAMPC-DPMCM)

R3-1

18 Jun 2015, 15:45

University of Alberta

Conveners

R3-1 Light-Matter Interactions (DAMOPC-DCMMP) / Interactions entre la lumière et la matière (DPAMPC-DPMCM)

• Paul Barclay (University of Calgary)

769. Gold Nanostructures and Their Applications

Prof. Alexandre Brolo (University of Victoria)

18/06/2015, 15:45

Division of Atomic, Molecular and Optical Physics, Canada / Division de la physique atomique, moléculaire et photonique, Canada (DAMOPC-DPAMPC)

Invited Speaker / Conférencier invité

Nanostructured metallic surfaces support surface plasmon (SP) excitations. The resonance conditions depend on the optical properties at the metal-dielectric interface. For instance, the monitoring of the shift of the surface plasmon resonance (SPR) due to molecular adsorption events is a well-established approach in biosensing. The SPR condition also leads to an increase in the electric field...

767. Superfluid ${}^4$He Helmoltz nanoresonator

Fabien Souris (University of Alberta)

18/06/2015, 16:15

Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)

Oral (Non-Student) / orale (non-étudiant)

We have built and investigated the properties of a nanofluidic Helmoltz resonator operating with superfluid ${}^4$He. The density oscillations of the fluid are measured with an on-chip capacitor, allowing us to probe a small volume of helium contained in the resonator. Oscillators based on superfluid ${}^4$He are expected to reach high quality factors due to its high purity and dissipationless...

818. Torque Magnetometry of an Individual Aggregate of ~350 Nanoparticles

Tayyaba Firdous (Department of Physics, University of Alberta, T6G 2E1, Canada)

18/06/2015, 16:30

Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)

Oral (Student, Not in Competition) / Orale (Étudiant(e), pas dans la compétition)

Magnetic properties for isolated and small-scale assemblies of nanoparticles are generally derived from measurements of bulk nanoparticle systems. To complement this, we aim to investigate these properties for individual assemblies of single-domain magnetite nanoparticles. Nanoparticles, ~ 50 nm in size and harvested from magnetotactic bacteria, were deposited by Nano eNnabler (BioForce...

831. Interdisciplinary Applications of Optical Spectroscopy on a Laser-Induced Plasma

Steven Rehse (University of Windsor)

18/06/2015, 16:45

Division of Atomic, Molecular and Optical Physics, Canada / Division de la physique atomique, moléculaire et photonique, Canada (DAMOPC-DPAMPC)

Invited Speaker / Conférencier invité

When a short pulse of laser light is focused to a small spot, the energy density may be high enough to ablate and partially ionize whatever material was in the focal volume of the laser (whether it was a solid, liquid, or gas.) This ionized gas plume can strongly interact with the incident laser pulse, quickly leading to significant heating and further ionizations, resulting in a...