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