THE EFFECT OF ELECTRIC AND MAGNETIC FIELDS ON THE 7F0↔5D0 TRANSITION OF BaClF : Sm2+ USING PHOTON-GATED HOLEBURNING

A new mechanism of spectral holeburning by 2-step photoionization ("photon-gated" holeburning) has recently been demonstrated. In BaClF : Sm2+, this leads to permanent spectral holes 25 MHz wide which we have used to measure small linear Stark and nonlinear Zeeman coefficients of the 7F0↔5D0 transition of Sm2+. The Zeeman coefficients agree within 4% with those calculated assuming free ion 4f6 wave functions for 7F0 and 5D0