Picosecond Time of Flight Measurements of Excitonic Polariton in CuCl
作者： Yasuaki Masumoto , Yutaka Unuma , Yuichi Tanaka , Shigeo Shionoya
DOI: 10.1143/JPSJ.47.1844
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摘要: The group velocity of excitonic polariton in CuCl has been measured at 4.2 K using picosecond light pulses. It is derived by measuring both the time delay pulses and thickness samples. Experimental results are well explained dispersion relation including spatial dispersion. In addition, translational effective mass exciton directly derived, i.e. M =(2.0 ±0.1) m 0 .
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