Photoionization cross sections of ultracold ${}^{88}$Sr in ${}^1$P${}_1$ and ${}^3$S${}_1$ states at 390 nm and the resulting blue-detuned magic wavelength optical lattice clock constraints

Marcin Witkowski, Sławomir Bilicki, Marcin Bober +4

We present the measurements of the photoionisation cross sections of the excited ${}^1$P${}_1$ and ${}^3$S${}_1$ states of ultracold ${}^{88}$Sr atoms at 389.889 nm wavelength, which is the…