J. Xu, L. Zhou, and M. Thakur, "Electro-optic modulation with use of single crystal film of NPP in a Fabry-Perot cavity,"
in Quantum Electronics and Laser Science Conference, J. Bokor, R. Slusher, P. Bucksbaum, and R. Falcone, eds.,
Vol. 12 of OSA Technical Digest
(Optical Society of America, 1997), paper QThG52.