Question

Potassium Dihydrogen Phosphate (KDP) crystals are commonly used for second harmonic generation of Nd:YAG lasers at room temperature. The fundamental light wavelength is 1.06 micron. Assuming 100% efficiency

a) Compare the wavelength of light before and after the crystal;

b) Compare the energy of a single photon of the incident beam and SHG beam; and

c) Discuss this effect in terms of the energy conservation law.

(10 points) Using twoKDP crystals, can one get the following light?

• 3^th harmonics of the fundamental wave? If yes, how? What is the wavelength of this light? If not, why not?

Answer 1

I have allow to solve only first question

i hope you understand the answer if yes then rate the answer otherwise comment for your doubt.