Effect of a hybrid transition moment on Stark-modulated photon echoes in Er${}^{3+}$:Y${}_2$SiO${}_5$

Rose L. Ahlefeldt, Alexey Lyasota, Jodie Smith +2

The 1538 nm ${}^4$I${}_{15/2}$ - ${}^4$I${}_{13/2}$ transition of Er${}^{3+}$ has an unusual hybrid electric-magnetic dipole character, and signatures of the hybrid moment can be expecte…