Collinear Three-Photon Excitation of a Strongly Forbidden Optical Clock Transition

Samuel P. Carman, Jan Rudolph, Benjamin E. Garber +7

The ${}^1{\mathrm{S}}_0-{}^3{\mathrm{P}}_0$ clock transition in strontium serves as the foundation for the world's best atomic clocks and for gravitational wave detector concepts…