Frank Stem
C R C Critical Reviews in Solid State Sciences
The two-photon pumped lasing from a circular grating, surface emitting distributed Bragg laser with methyl-substituted ladder-type poly(p-phenylene) (MeLPPP) as gain material was demonstrated. A low lasing threshold for two-photon pumped upconverting was achieved. The lasing is applicable for two-photon excited emission studies in biology, medicine and photonics due to higher confinement, low scattering and extremely low background signal available by it.
Frank Stem
C R C Critical Reviews in Solid State Sciences
S.F. Fan, W.B. Yun, et al.
Proceedings of SPIE 1989
G. Will, N. Masciocchi, et al.
Zeitschrift fur Kristallographie - New Crystal Structures
Andreas C. Cangellaris, Karen M. Coperich, et al.
EMC 2001