Abbreviated Journal Title
Appl. Phys. Lett.
BAND; Physics, Applied
A simple method for doubling the laser emission efficiency of Nd:yttrium-aluminum-garnet pumped cholesteric liquid crystal (CLC) photonic band edge lasers is demonstrated. By adding a mirror or a CLC reflector behind the dye-doped CLC cell, the lasing intensity is nearly doubled. For the mirror reflector, due to the mixing of right-handed and left-handed circular polarizations, the output laser is basically unpolarized. However, for the CLC reflector, a partially coherent laser can be built in which either right-handed or left-handed circularly polarized laser could dominate the output, depending on the handedness of the cholesteric structure.
Applied Physics Letters
Zhou, Ying; Huang, Yuhua; Rapaport, Alexandra; Bass, Michael; and Wu, Shin-Tson, "Doubling the optical efficiency of a chiral liquid crystal laser using a reflector" (2005). Faculty Bibliography 2000s. 5857.