topic too broad.
how much do you have?
is it in liquid or powder?
do you have a laser to flow?
do you have the resonator?
your question can not be answered as asked.
to answer the only question you asked with the information provided "could you pump it with a 532 dpss laser?
the only answer is YES
Will it lase? - depends on how you answer only a few of my above questions.
sorry but not a well thought out question.
Pat B
laserman532 on ebay
Been there, done that, got the t-shirt & selling it in a garage sale.