2023 CAP Congress / Congrès de l'ACP 2023

Session

(DAMOPC) M3-2 Atomic- and molecular physics - laser spectroscopy | Physique atomique et moléculaire - spectroscopie laser (DPAMPC)

M3-2

19 Jun 2023, 16:00

University of New Brunswick

Conveners

(DAMOPC) M3-2 Atomic- and molecular physics - laser spectroscopy | Physique atomique et moléculaire - spectroscopie laser (DPAMPC)

• Jens Lassen

3659. Spinning the Top at the Light Source – Torsional FTIR Synchrotron Spectra of the CD3SH Species of Methyl Mercaptan

Ronald Lees

19/06/2023, 16:00

Atomic, Molecular and Optical Physics, Canada / Physique atomique, moléculaire et photonique, Canada (DAMOPC-DPAMPC)

Oral (Non-Student) / Orale (non-étudiant(e))

The far-infrared spectrum of CD$_{3}$SH has been recorded from 60 to 450 cm$^{-1}$ at the FIR beamline of the Canadian Light Source in Saskatoon in order to explore the evolution of the torsional structure in climbing up the ladder of torsional states. So far, the torsion-rotation levels have been extensively mapped up to the third excited torsional state, and we hope to push the assignments...

3798. (G*) Optical fiber probe for the detection of chemicals: Rhodamine 6G and Crystal Violet

Ms Navneet Kaur

19/06/2023, 16:15

Atomic, Molecular and Optical Physics, Canada / Physique atomique, moléculaire et photonique, Canada (DAMOPC-DPAMPC)

Oral Competition (Graduate Student) / Compétition orale (Étudiant(e) du 2e ou 3e cycle)

Authors fabricated a unique plasmonic structure using gold nanorods (GNRs) along the length of a tapered fiber using a well-known phenomenon called “Optical tweezing”. The plasmonic structure, known as an optical fiber probe, was used to detect chemicals at lower concentrations. Surface-enhanced Raman spectroscopy (SERS) technique was used to obtain the data for chemicals adsorbed on the...

3793. (G*) Passively Q-Switched fiber laser using an aqueous solution of gold nanorods and poly vinyl alcohol as a saturable absorber

Ms Varsha Varsha (Lakehead University)

19/06/2023, 16:30

Atomic, Molecular and Optical Physics, Canada / Physique atomique, moléculaire et photonique, Canada (DAMOPC-DPAMPC)

Oral Competition (Graduate Student) / Compétition orale (Étudiant(e) du 2e ou 3e cycle)

Authors demonstrated a passively Q-Switched pulse laser by using an aqueous solution of colloidal gold nanorods (GNRs) and Poly vinyl Alcohol (PVA) as a Saturable Absorber (SA) in a fiber ring laser cavity. GNRs, due to its unique plasmonic and nonlinear properties, has the potential to generate ultrashort pulses. In addition, a tunable laser can be developed using a mixture of GNRs with...

3830. (G*) Laser Based Studies of Iron Monohydride (FeH): New Electronic States and Zeeman Spectroscopy in Support of Exoplanet Research

Timothy Blackmore

19/06/2023, 16:45

Atomic, Molecular and Optical Physics, Canada / Physique atomique, moléculaire et photonique, Canada (DAMOPC-DPAMPC)

Oral Competition (Graduate Student) / Compétition orale (Étudiant(e) du 2e ou 3e cycle)

We will report on the development of efforts to create new spectroscopic reference data to help astronomers to find exoplanets. Astronomers routinely observe spectra of the molecule iron hydride (FeH) in the atmosphere of M-class stars. By measuring the Doppler shifts of transitions in FeH, they can determine a star’s radial velocity. If a star has an exoplanet, the star and the exoplanet...

3833. (G*) The A$^{2}\Pi_{1/2}$ - X$^{2}\Sigma^{+}$ Transition in YbOD, a Molecule of Interest in the Search for Physics Beyond the Standard Model

Nicholas Caron

19/06/2023, 17:00

Atomic, Molecular and Optical Physics, Canada / Physique atomique, moléculaire et photonique, Canada (DAMOPC-DPAMPC)

Oral Competition (Graduate Student) / Compétition orale (Étudiant(e) du 2e ou 3e cycle)

Laser-cooled molecules exhibit several features that make them attractive virtual laboratories for probing new physics Beyond the Standard Model (BSM). Various proposed extensions to the Standard Model predict non-zero values for the electron's Electric Dipole Moment (eEDM). To date, no experiment has measured a non-zero eEDM; however measurements placing an upper bound on the value for the...

3944. discussion & networking

19/06/2023, 17:15

discussion & networking opportunities for session close out