Hajima, R.Minehara, E. J.Nagai, R.Nishimori, N.2004-12-142004-12-1420012001http://hdl.handle.net/2003/1874710.17877/DE290R-12625enThe American Physical SocietyPhysical Review Letters530Sustained Saturation in a Free-Electron Laser Oscillator at Perfect Synchronism of an Optical Cavity10.1103/PhysRevLett.86.5707article (journal)