A left-handed molecule is one that causes polarised light to rotate to the left (ie, anticlockwise).

左旋分子就是使偏振光发生左(即逆时针方向)旋的分子。

youdao

They sort left from right versions using circularly polarised light, whose electric field corkscrews through space in a left or right-handed direction.

旋转偏振光被他们用来筛选左手性和右手性分子，这种光的电场以左手或右手螺旋形式在空间旋进。

youdao

For example, insects can see polarised light - light to them appears as different colours, depending on the Angle at which reflects off different surfaces.

例如，昆虫能够看到极光——光对它们来讲会根据从不同的表面反射的不同角度而显现出不同的颜色。

youdao

Dr Dacke had previously shown that dung beetles were able to keep a straight line by taking cues from the Sun, the Moon, and even the pattern of polarised light formed around these light sources.

BBC: Dung beetles guided by Milky Way

The team's invisibility cloak exploits this effect, and relies on a specific geometry comprising two prism-shaped calcite crystals glued together, such that they leave a wedge-shaped gap beneath in which objects can be "cloaked" when illuminated with polarised light.

BBC: Invisibility cloaking benefits from crystal-clear idea

Instead of having spectacles with a crude red filter for one eye and green for the other, the Real D system relies on circularly polarised light with one lens polarising the light to the left, and the other to the right.

ECONOMIST: Animation takes on a whole new reality