英语翻译Thetheoryoftransmissionthroughbirefringentmediaiswelldeveloped,andthetransmissionthroughacrystalatanobliqueanglecanbederivedbyexactorapproximatemeans.19,20,28,29Whenacollimatedbeamoflightentersabirefringent

Question

英语翻译
The theory of transmission through birefringent
media is well developed,and the transmission
through a crystal at an oblique angle can be derived
by exact or approximate means.19,20,28,29 When a
collimated beam of light enters a birefringent medium
at an oblique angle,the transmitted field consists
of two beams that propagate in two distinct
directions.The direction of a refracted beam depends
on its angle of incidence and the refractive
index,and the refractive index in turn depends on the
angle of incidence.An exact solution to this problem
is complicated,but a great simplification can be made
by noting that there is little divergence in the transmitted
beams,particularly for small angles of incidence.
We assume that the transmitted field
consists essentially of a single beam whose direction
is determined by the ordinary index of refraction

Answer 1

论传输双折射媒体十分发达,并通过传输晶体斜角可以推导出完全符合或近似means.19 ,20,28,29当准直光束进入双折射介质上斜肌角度看,传播领域由两束传播在两个不同的方向.的方向发展折射光束取决于其入射角和折射率和折射率反过来取决于入射角.确切的解决这个问题很复杂,但一个伟大的简化,可注意到,没有什么分歧,在转交梁,尤其是小角度的发病率.我们假设传播领域包括基本上是单束的方向所确定的普通折射率