Polarization of light光的偏振 Polarization confirms the transverse nature of light waves 光的偏振证明了光的横波性质 1. polarized light, unpolarized light (偏振光、自然光) 何谓偏振 偏振-振动方向对传播方向的不对称性。是区别 横波和纵波的重要区别
三. Polarization of Light 光的偏振 Polarization confirms the transverse nature of light waves. 光的偏振证明了光的横波性质。 1.polarized light、unpolarized light (偏振光、自然光) 偏振--振动方向对传播方向的不对称性。是区别 横波和纵波的重要区别。 何谓偏振
The vibrating E vector and the direction of propaga tion form a plane, called the plane of vibration. yue vector are in a certain constant direction E →> Y horizontal vibration Iagram:HH or-:平行振动 →1, E diagram Vertical vibration垂直振动
1. Polarized light、unporarized light 偏振光、自然光 polarized light(偏振光): the vibrations of E vector are in a certain constant direction. Z X Y u → E E u → Z X Y diagram: or diagram : horizontal vibration 平行振动 Vertical vibration 垂直振动 The vibrating E vector and the direction of propagation form a plane, called the plane of vibration.振动面
Unpolarized light(自然光): the amplitudes of the e vector in all possible directions are equal. 把各个光矢量分解成互相垂 直的两个光矢量分量,且两 个光矢量分量的平均值等 y diagram: 010+o-HO Unpolarized light is viewed as two vertical plane polarized waves with random phase difference. 部分偏振光:
X Y Unpolarized light(自然光): the amplitudes of the E vector in all possible directions are equal. E diagram: 把各个光矢量分解成互相垂 直的两个光矢量分量,且两 个光矢量分量的平均值等。 Unpolarized light is viewed as two vertical planepolarized waves with random phase difference. 部分偏振光:
partial polarized light 部分偏振光) he vibrations of the e vector in a certain direction has the upper hand to the vibration in the perpendicular direction diagram: +00+00-+00-+oo 垂直于纸面的光振动的平 均值大于平行于纸面的光 振动的平均值 H1oHoH→ 平行于纸面的光振动的平 均值大于垂直于纸面的光 振动的平均值
diagram: partial polarized light (部分偏振光): The vibrations of the E vector in a certain direction has the upper hand to the vibration in the perpendicular direction. 平行于纸面的光振动的平 均值大于垂直于纸面的光 振动的平均值。 垂直于纸面的光振动的平 均值大于平行于纸面的光 振动的平均值。 X Y E
2. polarizing sheets polarizer and analyzer 偏振片、起偏与检偏 起偏与检偏: 起偏-从自然光获得偏振光 检偏-检查某束光是否是偏振光; 起偏振器-从自然光获得偏振光的装置; 检偏振器检查某束光是否是偏振光的装置。 1)polarizing sheets 涂有金鸡纳霜或碧硒(电 偏振片气石)等材料的簿膜 透明玻璃片
起偏与检偏: 2. polarizing sheets 、polarizer and analyzer 偏振片、起偏与检偏 起偏--从自然光获得偏振光 检偏--检查某束光是否是偏振光; 起偏振器--从自然光获得偏振光的装置; 检偏振器--检查某束光是否是偏振光的装置。 1) polarizing sheets 偏振片 透明玻璃片 涂有金鸡纳霜或碧硒(电 气石)等材料的簿膜