2017 CAP Congress / Congrès de l'ACP 2017

Session

T1-2 Nonlinear and Quantum Optics (DAMOPC) | Optique non linéraire et quantique (DPAMPC)

T1-2

30 May 2017, 08:00

BioSci 1103 (Queen's University)

Conveners

T1-2 Nonlinear and Quantum Optics (DAMOPC) | Optique non linéraire et quantique (DPAMPC)

• Amar Vutha (University of Toronto)

1873. Probing ultrafast optical demagnetization with an HHG source

Katherine Légaré (Institut National de la Recherche Scientifique)

30/05/2017, 08:00

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

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

Ultrafast optical demagnetization is a phenomena whose origins have yet to be completely understood. One challenge in studying this phenomena is the low availability of femtosecond light sources in the XUV and X-ray regimes. By exploiting the process of High Harmonic Generation (HHG) in argon, we have developed a high-flux, table-top femtosecond XUV source. We use it for probing ultrafast...

1880. Quantum noise in excitable laser systems

Mr Gerasimos Angelatos (Princeton)

30/05/2017, 08:15

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

CLOSED - Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)

Driven-dissipative quantum optical systems may display dynamics that is difficult to accurately capture using a master equation approach, particularly in the limit of large excitation numbers. To keep pace with rapid experimental progress and increasing complexity in quantum optical systems, an effective computational approach is needed that is not limited by Hilbert space truncation. We...

1624. Dependence of spontaneous surface relief gratings formation on the incidence angle and the polarization of the pump beam

Ms Leila Mazaheri (Graduate Students, Queen's University)

30/05/2017, 08:30

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

CLOSED - Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)

Materials containing azobenzene chromophores have been utilised for all-optical surface patterning because of their photoresponsive properties. When azobenzene derivatives are irradiated with a polarized light beam with wavelengths within their absorption band, they undergo a reversible cis-trans isomerization process leading to a molecular reorientation, and further illumination results in...

1804. Ab Initio Calculations of Torsionally Mediated Hyperfine Splittings in E States of Acetaldehyde

Dr Li-Hong Xu

30/05/2017, 08:45

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

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

Hyperfine splittings in methanol (CH${}_3$OH) have been revisited in three recent publications.
[i] Coudert et al. [JCP 143 (2015) 044304] published an analysis of splittings observed in the low-J range. They calculated 32 spin-rotation, 32 spin-spin, and 16 spin-torsion hyperfine constants using the ACES2 package. Three of these constants (c${}_{zz}^0$, c${}_{zz}^{0,h}$ and s${}_z^{0,h}$)...