Giving a Twist to Multiple Laser Beam Alignment

by Yair Yifrach

at Quantum optics seminar

Thu, 18 Jan 2018, 15:30
Physics building (#54) room 207

Abstract

Understanding the nature and dynamics of hydrogen bonds has been a long standing goal To shed light on these issues we study the induced photophysics of the hydrated clusters of model systems functioning in biological systems as neurotransmitters As part of the preliminary investigations we applied the method of ionization loss stimulated Raman spectroscopy ILSRS a method requiring alignment of multiple laser beams usually a difficult and time consuming task Hence a facilitated approach for spatial overlap of the involved laser beams ultraviolet pump and Stokes with the molecular beam based on spatial and velocity map imaging was proposed and demonstrated for the 2 phenylethylamine PEA monomer and its water cluster PEA H2O Following this procedure measurements of velocity distributions and two photon ionization R2PI and ILSR spectra of the probed species became easily accessible The velocity distributions provided an unprecedented advantage allowing immediate classification of the bands in the R2PI spectrum of PEA corresponding to the molecular ion or being a result of parent cluster photofragmentation

Created on 14-01-2018 by Bar Lev, Yevgeny (ybarlev)
Updaded on 14-01-2018 by Bar Lev, Yevgeny (ybarlev)