Inverted Ladder Type Optical Excitation of Potassium Rydberg States with Hot and Cold Ensembles

Tzu-Ling Chen, Shao-Yu Chang, Yi-Jan Huang +6

We present experimental results on the sub-Doppler Rydberg spectroscopy of potassium in a hot cell and cold atoms, performed with two counter-propagating laser beams of 405 nm and…