Aluminum Ions:

Outer Shell Energy Diagram

¹S₀ to ¹P₁ transition:  167 nm (t~0.7 ns; 230 MHz linewidth)

¹S₀ to ³P₂ transition:  266.1 nm (t~270 s)

¹S₀ to ³P₁ transition:  267 nm (t~305 ms; 500 Hz linewidth)

¹S₀ to ³P₀ transition:  267.44 nm (t~377 s)