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							Yong-Ho CHA
														
									Quantum Optics Division, Korea Atomic Energy Research Institute, Daejeon 305-353, Republic of Korea
							
						 
						- 
							Yong-Woo LEE
														
									Quantum Optics Division, Korea Atomic Energy Research Institute, Daejeon 305-353, Republic of Korea
							
						 
						- 
							Kyung-Nam KIM
														
									Quantum Optics Division, Korea Atomic Energy Research Institute, Daejeon 305-353, Republic of Korea
							
						 
						- 
							Young Uk JEONG
														
									Quantum Optics Division, Korea Atomic Energy Research Institute, Daejeon 305-353, Republic of Korea
							
						 
						- 
							Hyung-Ki CHA
														
									Quantum Optics Division, Korea Atomic Energy Research Institute, Daejeon 305-353, Republic of Korea