What is lasant?

What has the author R J De Young written?

R. J. De Young has written: 'Scaling blackbody laser to high powers' -- subject(s): Lasers, Blackbody radiation 'Lasant materials for blackbody pumped-lasers' -- subject(s): Solar-pumped lasers, Lasers in astronautics, Energy conversion, Laser pumping, Blackbody radiation, Laser cavities, Laser propulsion, Black body radiation 'A blackbody-pumped CO-N' -- subject(s): Lasers