Shortening of the excited lifetime of the lower laser level in CVL by an addition of Cs

Abstract

Addition of Cs to the CVL discharge is proposed as a means to achieve a more efficient CVL system. We present a demonstration and analysis of the shortening of the metastable excited-lifetime (0.7μs: Ne buffer gas, 0.8μs: He buffer gas) of the lower laser level on the basis of a collision of the 2nd kind between metastable state Cu and ground state Cs atoms.