There is little experimental information about Na2 b3?+g+-Na2 x3?+u emission, which may be used in tunable optical converter in the near infrared region from 770.0 nm ~ 900.0 nm. This transition has recently been a subject of considerable interest. Attempts to observe such an emission have not been successful. Na2 (ba?+g) state can not be excited directly, nor can be excited by energy exchange collisions. One possible way is with indirect radiative pumping.