Keywords:Strontium, Resonance ionization, Isotopic selectivity, Interference filter, Etalon
Resonance ionization spectroscopic (RIS) analysis is one of alternative technique to enhance the isotope selectivity such as strontium 90 (90Sr). On this series of report, firstly, we present the development of RIS system with interference filtered external cavity diode laser (IF-ECDL; 689 nm). Secondly, beam characteristics of IF-ECDL with alternatively developed etalon system. And then finally, the results of multi-step RIS (689 nm – 487 nm – 487 nm) of 90Sr are reported.