摘要
推导出光栅在平行光照射下,距光栅出射面的间隙为z(泰泊距离内)处的光强分布函数。通过计算机绘制出不同间隙处的光能分布曲线。发现间隙在P^2/2λ处的“倍频”效应。找到了光栅开口比为0.3左右时的最佳“倍频”效果。所有上述结论都有实验加以证实。
Distribution functions of light intensity in the parallel lightbeing 3 away grating (within Talbot distance) were deduced.Distributioncurves of gapes were drawed by a computer.Effect of “double frequency” inP^2/2λ away grating was finded.When a ratio of space to period is 0.3 theeffect of “double frequency” is finest.All these above have been confirmedby expariment.
出处
《仪器仪表学报》
EI
CAS
CSCD
北大核心
1991年第2期186-192,共7页
Chinese Journal of Scientific Instrument
基金
浙江省自然科学基金
