The temporal and spatial coherence of light emitting diode (LED) is studied by Michelson interferometer with subfemtosecond time resolution.

• 由相干度理论和准单色光理论出发研究了发光二极管(LED)的时间相干与空间相干特性,并采用时间分辨 为亚飞秒的迈克尔逊干涉仪对LED的相干度进行了测量记录。