Conveners
M2-1 Interaction Between Matter and Light (DAMOPC) | Interaction de la matière et de la lumière (DPAMPC)
- Gautam Das (Lakehead University)
Presentation materials
Most phenomena or interactions whether they be physical, chemical or biological in nature take place at the nanoscale. Hence, materials under study should be characterized for various properties such as structural, mechanical, optical and chemical at high resolution. Not many techniques are capable of nanoscale measurements. Development of novel techniques for this purpose is possible by...
Hollow-core photonic crystal fiber (HC-PCF) was used to develop a gas cell, which was incorporated in an Intracavity Absorption Spectroscopy (ICAS) system for the detection of gas at sub-ppmv levels of concentration. One drawback of using long lengths of HC-PCF is the relatively long time required to allow the gas sample to fill the entire cell. By segmenting the fiber there will be multiple...
We study the spreading of correlations in space and time after a quantum quench in the Bose Hubbard model. We derive equations of motion for the single-particle Green's function within the contour-time formalism, allowing us to study dynamics in the strong coupling regime. We discuss the numerical solutions of these equations and calculate the single-particle density matrix for quenches in the...
We have recently studied a set of 40 spectra of carbon monoxide in pure state and mixed with air, recorded at temperatures between 79 to 296 K. Our aim was to investigate if the temperature dependencies of line parameters, such as half widths and pressure induced shifts, stay the same at very low temperatures, close to 79 K. The spectra were all recorded over two decades using the 1-m Fourier...
Material quality and crystallinity play an important role in the activity of plasmonic devices. Plasmonic structures made from monocrystalline metals may be expected to display much higher efficiency and stability than polycrystalline devices which are subject to many losses due to the presence of grain boundaries and defects. With the help of a novel epitaxial electroless deposition (EED)...
