Measurement of the effect of uniaxial stress on the spectrum of CaF2:Pr3+:D- using spectral hole burning

Uniaxial stress coefficients have been measured for the H43(1)1D2(1) transition of several Pr3+ centers in CaF2 doped with Pr3+ and D- ions. For the Cs(1) center at 6012.4 A these measurements were made using persistent spectral hole burning. The holes showed a stress shift of 1.8 GHz/kg mm-2. This shift is somewhat inhomogeneous, which limits the magnitude of stress that can usefully be applied. © 1989 The American Physical Society.