Pentagon-shaped 0~(ο)-cut BaTiO_(3) as an efficient self-pumped phase conjugator

摘要

A pentagon-shaped 0_(o)-cut undoped B_(a)TiO_(3) crystal was used to construct a high-quality self-pumped phase conjugator. The conjugator shows a steady phase-conjugate output with a high reflectivity (as high as ~(6)8%), a fast rising time, and a large angular range of acceptance. It also shows a good fidelity in the phase-conjugate reconstructed image; the resolution reaches 17 μm.