Fig. 7 | Scientific Reports

Fig. 7

From: Laser isotope enrichment of 168Er

Fig. 7

Two dimensional ionization efficiency contour of 167Er under Doppler free condition. The bandwidth and intensity of all excitation lasers is 100 MHz and 5 W/cm2 respectively. (A) Third excitation laser is tuned to the 23/2–25/2 hyperfine transition of 167Er (B) The third excitation laser is tuned to 168Er resonance. Hyperfine pathway numbers marked in the figure are as per Table 6.

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