Kawahara, KarinKuga, TakahiroSanaka, Kaoru2004-12-142004-12-1420012001http://hdl.handle.net/2003/1884110.17877/DE290R-1567enThe American Physical SocietyPhysical Review Letters530New High-Efficiency Source of Photon Pairs for Engineering Quantum Entanglement10.1103/PhysRevLett.86.5620article (journal)