Modulation-free pump-probe spectroscopy of strontium atoms
Department of Physics, Durham University, Rochester Building, South Road, Durham, DH1 3LE, UK
Corresponding author: email@example.com
Revised: 16 October 2009
Published online: 16 February 2010
We have performed polarization spectroscopy on the 5s21S0 →5s5p1P1 transition of atomic strontium. The signal is generated by saturation effects, rather than optical pumping, as the ground state is non-degenerate. This technique generated a dispersion-type lineshape suitable for laser stabilization, without the need for frequency modulation. The dependence of the amplitude and gradient on intensity and magnetic field were also investigated, and compared to a related technique based on the circular dichroism induced by a magnetic field.
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2010