Measurement of the binding energy of ultracold ${}^{87}$Rb${}^{133}$Cs molecules using an offset-free optical frequency comb

Peter K. Molony, Avinash Kumar, Philip D. Gregory +6

We report the binding energy of ${}^{87}$Rb${}^{133}$Cs molecules in their rovibrational ground state measured using an offset-free optical frequency comb based on difference frequency…