Frequency Doubling in a KDP Crystal
نویسنده
چکیده
Due to nonlinear atomic polarization, crystals can emit a different frequency of light than absorbed. In order to see the second order effects of atomic polarization, which cause a doubling in the frequency of the incident light, the incident light must be an intense and coherent source, like a laser. Potassium Dihydrogen Phosphate (KDP) is a crystal that exhibits these nonlinear polarization properties and is cheap to produce. In the following experiment, a KDP crystal is grown in the laboratory and probed with infrared (795nm) light from a 800mW titanium-sapphire pulsed laser to produce near UV (397.5nm) light.
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