| Abstract: | Sodium-ethane excimer pairs are studied and proved to be a great choice of excimer pumped sodium laser(XPNa L)gain media.The lifetime of the sodium D_2 line is studied in a sodium-ethane excimer system excited by a 553 nm laser,and the observed phenomenon of lifetime lengthening is discussed.Amplified spontaneous emission(ASE) of the sodium D_2 line is successfully obtained,and its time-resolved and spectroscopic characteristics are studied experimentally.According to the intensity of the ASE signal under different sodium vapor atom densities,the sodium D_2 line gain feature of sodium-ethane excimer pairs excited by the 553 nm laser is concluded. |
