We have observed the oscillatory magnetic-field and time dependence of the fluorescence from the $^{1}P_{1}$ levels of Ba and Ca excited by a pulsed tunable dye laser. We have observed level-crossing signals narrowed by the technique of time-delayed observation.We have observed the oscillatory magnetic-field and time dependence of the fluorescence from the $^{1}P_{1}$ levels of Ba and Ca excited by a pulsed tunable dye laser. We have observed level-crossing signals narrowed by the technique of time-delayed observation.

Physical Review LettersJul 23, 197384 citations

Tunable dye laser spectroscopy of atomic calcium: collisional redistribution of radiation

Alan Corney, J V M McGinley

By tuning a pulsed dye laser through the resonance line of calcium at 422.7 nm the authors have investigated the spectral redistribution of laser radiation by calcium vapour. Two main components were resolved in the side emission from an oven containing calcium vapour and argon buffer gas. These are produced by Rayleigh scattering and by collision-induced fluorescence. The intensity of the Rayleigh component was found to vary as Delta -2 where Delta = omega 21 - omega L is the laser detuning from resonance. In contrast the intensity of the collision-induced fluorescence showed a markedly asymmetric dependence on detuning. Detailed studies of the collision-induced fluorescence have enabled the complete line shape of the calcium resonance line perturbed by argon to be determined. The interpretation of this data in terms of a frequency-dependent collision rate, gamma E ( Delta ), is discussed. This paper also reports calculations of theoretical line profiles using the unified Franck-Condon theory and trial interatomic difference potentials. The comparison of the experimental and theoretical line profiles enables the range of validity of the unified Franck-Condon theory to be assessed and the form of the optimum Ca-Ar difference potential to be selected.By tuning a pulsed dye laser through the resonance line of calcium at 422.7 nm the authors have investigated the spectral redistribution of laser radiation by calcium vapour. Two main components were resolved in the side emission from an oven containing calcium vapour and argon buffer gas. These are produced by Rayleigh scattering and by collision-induced fluorescence. The intensity of the Rayleigh component was found to vary as Delta -2 where Delta = omega 21 - omega L is the laser detuning from resonance. In contrast the intensity of the collision-induced fluorescence showed a markedly asymmetric dependence on detuning. Detailed studies of the collision-induced fluorescence have enabled the complete line shape of the calcium resonance line perturbed by argon to be determined. The interpretation of this data in terms of a frequency-dependent collision rate, gamma E ( Delta ), is discussed. This paper also reports calculations of theoretical line profiles using the unified Franck-Condon theory and trial interatomic difference potentials. The comparison of the experimental and theoretical line profiles enables the range of validity of the unified Franck-Condon theory to be assessed and the form of the optimum Ca-Ar difference potential to be selected.

Journal of Physics B Atomic and Molecular PhysicsSep 14, 198127 citations

Two-Photon Excitation in Ca F 2 : Eu 2 +

W. Kaiser, C. G. B. Garrett

Physical Review LettersSep 15, 19611,343 citations

Two-Photon Spectroscopy in Eu2+ doped Alkali Halides

M. Casalboni, Roberto Francini, Umberto Maria Grassano +1 more

Crystal lattice defects and amorphous materialsJan 1, 19871 citation

Spectral hole-burning of Eu3+: Y2SiO5 crystal at 579.62 mm

Xue Sl, Chen Lb, Yy Zhao +3 more

By using an Ar+ ion laser, a tunable Rh 6G dye laser(Linewidth : 0.5 cm(-1)) and a Coherent 899-21 dye laser as light sources and using a monochromator and a phase-locking amplifier, the optical properties of Eu3+ : Y2SiO5 crystal were detected. Persistent spectral hole burning (PSHB) were also observed in (5)Do-(7)Fo transition in the crystal at the temperature of 16 K. For 15 mW dye laser (Wavelength : 579.62 nm) burning the crystal for 0.1 s a spectral hole with about 80 MHz hole width were detected and the hole can been keep for longer than 10 h.By using an Ar+ ion laser, a tunable Rh 6G dye laser(Linewidth : 0.5 cm(-1)) and a Coherent 899-21 dye laser as light sources and using a monochromator and a phase-locking amplifier, the optical properties of Eu3+ : Y2SiO5 crystal were detected. Persistent spectral hole burning (PSHB) were also observed in (5)Do-(7)Fo transition in the crystal at the temperature of 16 K. For 15 mW dye laser (Wavelength : 579.62 nm) burning the crystal for 0.1 s a spectral hole with about 80 MHz hole width were detected and the hole can been keep for longer than 10 h.

Jan 1, 20050 citations

We have observed the oscillatory magnetic-field and time dependence of the fluorescence from the

^{1}P_{1}

levels of Ba and Ca excited by a pulsed tunable dye laser. We have observed level-crossing signals narrowed by the technique of time-delayed observation.