LINEAR PULSE-PROPAGATION IN AN ABSORBING MEDIUM
LINEAR PULSE-PROPAGATION IN AN ABSORBING MEDIUM
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DOI：
10.1103/physrevlett.48.738
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发表时间：
1982-01-01
影响因子：
8.6
通讯作者：
WONG, S
中科院分区：
文献类型：
--
作者：
CHU, S;WONG, S
利用皮秒飞行时间技术测量了激光调谐到束缚a激子线的GaP: N样品在线性状态下的脉冲速度。当群速度超过3× 10 × 10cm /sec、等于±∞或变为负值时，脉冲在材料中传播时具有很小的脉冲形状畸变，并且具有由群速度给出的包络速度。结果证实了Garrett和McCumber的预测。
The pulse velocity in the linear regime in samples of GaP: N with a laser tuned to the bound A-exciton line is measured with use of a picosecond time-of-flight technique. The pulse is seen to propagate through the material with little pulse-shape distortion, and with an envelope velocity given by the group velocity even when the group velocity exceeds 3× 10 10 cm/sec, equals±∞, or becomes negative. The results verify the predictions of Garrett and McCumber.