Emission properties of nanolasers during the transition to lasing
作者机构:Sandia National LaboratoriesAlbuquerqueNM 87185-1086USA Institute for Theoretical PhysicsUniversity of Bremen28334 BremenGermany
出 版 物:《Light(Science & Applications)》 (光(科学与应用)(英文版))
年 卷 期:2014年第3卷第1期
页 面:92-99页
核心收录:
学科分类:080901[工学-物理电子学] 0809[工学-电子科学与技术(可授工学、理学学位)] 08[工学] 080401[工学-精密仪器及机械] 0804[工学-仪器科学与技术] 0803[工学-光学工程]
基 金:funded by the US Department of Energy,Office of Science,Office of Basic Energy Sciences FJ and CG acknowledge financial support from the Deutsche Forschungsgemeinschaft
主 题:nanolasers optoelectronics photon statistics quantum light sources quantum optics semiconductor quantum dots thresholdless lasing
摘 要:This review addresses ongoing discussions involving nanolaser experiments,particularly those related to thresholdless lasing or few-emitter devices.A quantum-optical(quantum-mechanical active medium and radiation field)theory is used to examine the emission properties of nanolasers under different experimental *** active medium is treated as inhomogeneously broadened semiconductor quantum dots embedded in a quantum well,where carriers are introduced via current *** are made between a conventional laser and a nanolaser with a spontaneous emission factor of unity,as well as a laser with only a few quantum dots providing the *** is found that the combined exploration of intensity,coherence time,photon autocorrelation function and carrier spectral hole burning can provide a unique and consistent picture of nanolasers in the new regimes of laser operation during the transition from thermal to coherent ***,by reducing the number of quantum dots in the optical cavity,a clear indication of non-classical photon statistics is observed before the single-quantum-dot limit is reached.