Sub-Doppler polarization spectroscopy of the B1Πu←X1

Nobuo Nishimiya

¹

,

Yoji Yasuda

²

,

Tokio Yukiya

³

et al.

Global analysis of data on the spin-orbit-coupledA1Σu+andBai1, Ahmed2, Beser3 et al. 2011Phys. Rev. A

“…Data from OODR polarization spectoscopy, facilitated by collisional molecular orientation transfer V-type optical-optical double-resonance (OODR) polarization spectroscopy was performed at Temple University to obtain data on mixed A/b levels in a region of energy not studied previously. Among different types of polarization spectroscopy [54][55][56][57], this technique is well suited to observe selected transitions in the congested spectra of Cs 2 since in the single-laser based sub-Doppler experiments, the assignment of spectral lines is not trivial. Furthermore, collisional transfer of orientation produces a series of well-separated spectral lines associated with nearby levels that have been oriented and polarized.…”

Selective reflection studies of molecular cesium vapor

“…35,36 As is shown in Refs. [34][35][36] , the absorption in the wavelength range exploited in present study (780 nm) is governed by X 1 Σ g + → B 1 Π u interstate electronic transitions covering spectral range of 12800 -13200 cm -1 .…”

“…[34][35][36] , the absorption in the wavelength range exploited in present study (780 nm) is governed by X 1 Σ g + → B 1 Π u interstate electronic transitions covering spectral range of 12800 -13200 cm -1 . Precise spectroscopic analysis of this system by Doppler-free methods shows that there are about 18000 individual rovibronic transition lines assigned in 85 bands 36 . A simple estimate yields ~ 650 MHz mean frequency separation of these lines, which is comparable with their Doppler broadening.…”

“…There is a big number of papers devoted to theoretical and experimental studies of cesium dimers [30][31][32][33][34][35][36] , including precise calculations of state potentials 31,32 , formation of ultracold molecules 33 , spectroscopic studies 34 , employing also precise spectroscopy by sub-Doppler techniques. 35,36 As is shown in Refs.…”

“…The laser wavelength λ = 780 nm chosen to study selective reflection from Cs 2 is justified by the presence of cesium dimer absorption band in the spectral range of 750 -800 nm corresponding to X 1 Σ g + → B 1 Π u transitions [34][35][36] . The laser we have used fits also the Rb D 2 line resonance transitions, thus allowing to have precise frequency scaling.…”