Conveners
DCMMP Poster Session with beer / Session d'affiches, avec bière DPMCM
- Mona Berciu (University of British Columbia)
Paul Kim
(University of Alberta)
6/17/15, 7:00 PM
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Poster (Student, In Competition) / Affiche (Étudiant(e), inscrit à la compétition)
Torsional resonators are an effective platform to study various material and optical properties. Current advances in nanofabrication techniques allow miniaturization of these torsional oscillators down to micron scale devices but they are often limited by their detection methods. Using a high quality optical resonator ($Q > 10^5$) coupled with a mechanical oscillator, which are the basis of...
J. N. Westwood-Bachman
(University of Alberta, National Institute for Nanotechnology)
6/17/15, 7:02 PM
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Poster (Student, In Competition) / Affiche (Étudiant(e), inscrit à la compétition)
All-optical actuation and detection of nanomechanical devices has emerged as a promising transduction technique with high displacement sensitivity1-3. However, symmetric mechanical modes are difficult to detect with integrated photonics because the symmetry causes a zero effective index shift. Detection of higher order modes, including symmetric modes, is desirable for sensing...
Peter Nguyen
(University of Alberta)
6/17/15, 7:04 PM
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Poster (Student, In Competition) / Affiche (Étudiant(e), inscrit à la compétition)
Probing ultrafast processes over subpicosecond and picosecond time scales provides fundamental insight into the nature of materials. We have experimentally demonstrated terahertz (THz)-pulse-induced tunneling in a scanning tunneling microscope (THz-STM) to image surfaces with simultaneous nanometer spatial resolution and subpicosecond time resolution.However, the exact mechanism by which THz...
Jeff Krupa
(University of British Columbia)
6/17/15, 7:06 PM
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Poster (Student, In Competition) / Affiche (Étudiant(e), inscrit à la compétition)
Ultrafast all-optical switching offers great benefit to communication technologies, as all-optical logic operations can be performed at tremendous (terabit-per-second) data rates. Semiconductors are an obvious choice to perform such switching, given their strong optical nonlinearity, but standard bulk semiconductors suffer from relatively slow recombination—often with nanosecond or microsecond...
Dr
Anandram Venkatasubramanian
(Post Doctoral research fellow)
6/17/15, 7:08 PM
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Poster (Non-Student) / affiche (non-étudiant)
The Gas Chromatography (GC) – Mass Spectrometer (MS) system is the industry benchmark in research and chemical analysis. However given that MS systems are large and complicated instrumentation, chemical analyses have a long turnaround time. In this regard, portable GCs have carved a market niche but they have poor sensitivities. Recent demonstrations with Nanooptomechanical (NOMS) resonators...
Mr
S. K. Roy
(Department of Physics, University of Alberta and National Institute for Nanotechnology (NINT), Canada.)
6/17/15, 7:10 PM
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Poster (Student, In Competition) / Affiche (Étudiant(e), inscrit à la compétition)
It has been demonstrated that optimum dynamic range (DR) and high quality factor (Q) of NEMS resonators provides unprecedented mass sensitivity [1]. The mass sensitivity and frequency stability of these devices are limited by their thermomechanical (TM) noise. TM noise goes down with Q as pressure increases, at the same time enhanced critical amplitude leads to a higher DR value with better...
Hugh Ramp
(University of Alberta)
6/17/15, 7:12 PM
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Poster (Student, In Competition) / Affiche (Étudiant(e), inscrit à la compétition)
Dome microcavities are on-chip optomechanical devices formed by two quarter-wave Bragg stacks of silicon on silica. One of these mirrors is buckled away from the chip and is allowed to vibrate. These vibrations are thermally driven and can be detected using shifts in the optical resonances of the cavity. We use COMSOL Multiphysics software model to the coupling between the optical and...
Dr
Robert L. Varty
(Consultant in Engineering Science)
6/17/15, 7:14 PM
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Poster (Non-Student) / affiche (non-étudiant)
Heavy water consists of molecules of deuterium oxide. Heavy water is used in applications that require the special nuclear properties of a deuterium (hydrogen-2) atom. These applications have included solar-neutrino detectors and nuclear-fission reactors. The thermophysical properties of heavy water have been considered in such applications. Since the mass of a deuterium-oxide molecule is...
Suhad SBEIH
(Memorial University of Newfoundland)
6/17/15, 7:16 PM
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Poster (Student, In Competition) / Affiche (Étudiant(e), inscrit à la compétition)
Because they can exhibit a collapse transition at high temperatures or pressures, microgel colloids are of interest because of their potential for applications in areas like drug delivery and chemical separation that involve the uptake, encapsulation and release of small or biological molecules. In this work, we have used deuterium NMR and dynamic light scattering (DLS) to relate the...
Renjie Liu
(Lakehead University)
6/17/15, 7:18 PM
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Poster (Student, In Competition) / Affiche (Étudiant(e), inscrit à la compétition)
Molecular self-assembly of organic layers at surfaces is a powerful method to achieve the design and fabrication of nanostructures. The self-assembly of large-scale 2-d supramolecular networks at silicon surfaces is a particular challenge due to the large number of dangling bonds which suppress the diffusivity of adsorbed molecules and even break the molecules apart via the formation of Si-C...
John de Bruyn
(Western University)
6/17/15, 7:20 PM
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Poster (Non-Student) / affiche (non-étudiant)
Gels based on polyvinyl alcohol (PVA) can be formed by repeated freezing and thawing of a solution of the polymer. PVA cryogels have applications as biomaterials, including artificial tissue and drug delivery systems. The mechanical and electrical properties of polymeric materials can be changed significantly by adding a small amount of nanometer-sized particles. In this work, the dielectric...
Michelle Przedborski
(Brock University)
6/17/15, 7:22 PM
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Poster (Student, In Competition) / Affiche (Étudiant(e), inscrit à la compétition)
Granular materials play a major role in our daily lives and are vital to the function of a diverse array of industries, from agriculture to mining to pharmaceutical manufacturing. Understanding the dynamics of granular media is of fundamental importance to the study of matter in general, and beyond being intimately connected to a variety of natural geophysical phenomena, knowledge of the...
Jean-François Bisson
(Université de Moncton)
6/17/15, 7:24 PM
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Poster (Non-Student) / affiche (non-étudiant)
We propose a novel anisotropic Bragg mirror made of alternating high- and low-index layers of one single material, of which the refractive index is controlled by changing the angle between the sample normal and the average direction of the evaporated material during the deposition process, a technique called glancing angle deposition or GLAD, which affects the nanoporosity and hence the...
