Optical gain characterization of Perylene Red-doped PMMA for different pump configurations Kaysir, Md Rejvi ; Fleming, Simon ; MacQueen, Rowan W. ; Schmidt, Timothy W. ; Argyros, Alexander Abstract Publication: Applied Optics Pub Date: January 2016 DOI: 10.1364/AO.55.000178 Bibcode: 2016ApOpt..55..178K