Quantum Physics
High precission spectroscopy of ultracold Fermions in a triangular optical lattice
5 December 2013
Photo: AG Sengstock
First spectroscopic measurements using the ultra-stable clock laser have been performed on the doubly forbidden 1S0-3P0 transition. A sample of spin polarized fermionic 173Yb atoms has been interrogated in 3D triangular optical lattice. The spectroscopic data reveals Fourier-limited resolution.
(left) Heterodyne measurement of two individually stabilized clock lasers at 578nm (right) Fourier-limited spectrum of spin polarized Fermions in a 3D optical lattice interrogated on the clock transition.