摘要
两束相干光干涉的相长、相消，完全由位相差判别：位相差为π的偶数倍时，为相长干涉，位相差为π的奇数倍时，为相消干涉。
The constructive and destruetive interferences of two bunches of coherent lights arecompletely distinguished by the phase difference:when the phase difference in a multiple of evennumber of π,it is the constructive interference;when it is a multiple of cardinal number of π,it is thedestruective interference.
出处
《西南民族学院学报（自然科学版）》
1994年第1期105-106,109,共3页
Journal of Southwest Nationalities College(Natural Science Edition)
关键词
相干光
位相差
干涉
相长
相消
coherent light, phase difference, plane polarized light
