镭射光中，所有光波的波长都一样。
今天，我要谈一谈光，特别是镭射光。
Today, I'm going to talk about light, and in particular about laser beams.
这项技术把非线性的视觉的水晶用于镭射光的频率变换。
This technology USES nonlinear optical crystals for the frequency conversion of laser light.
镭射光也可以通过地下光缆来传输能量，来代替铜线传输。
Laser beams could be sent down fiber-optic cable to power anything currently powered by copper wire.
这一切从一台可以发射镭射光的机器开始。这种光束与仪器和工业生产用的激光不同。
It starts with a machine able to emit a beam of laser light.
但由于镭射光束是有一单一波长的光组成，它的转化就要比拥有多种光波的太阳能转化成能量效率更高。
But because the laser beam is comprised of a single wavelength of light, the conversion to electricity is much more efficient than converting multiple wavelengths of sunlight to energy.
当镭射光击打到光电装置上，光束上的光电子就会转化为电能，就像太阳能电池板把太阳能转化为电能。
When the laser hits the photovoltaic device, the photons in the light beam are converted to electricity in the same way that solar cells convert sunlight into electricity.
1907年时，爱因斯坦似乎没能预见到这样的时代，在这个时代，“镭射光钳”发射双重激光，从而困住灰尘一般大小的玻璃微粒，使它们悬浮在空中。
In 1907, Einstein likely did not foresee a time when dust-sized particles of glass could be trapped and suspended in air by dual laser beam "optical tweezers."
1907年时，爱因斯坦似乎没能预见到这样的时代，在这个时代，“镭射光钳”发射双重激光，从而困住灰尘一般大小的玻璃微粒，使它们悬浮在空中。
In 1907, Einstein likely did not foresee a time when dust-sized particles of glass could be trapped and suspended in air by dual laser beam "optical tweezers."
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