1. Describes different second order nonlinear optical processes
2. Introduces the second order susceptibility tensor d, describes the symmetry conditions it satisfies and introduces the 3 × 6 d matrix
3. Expresses the components of the nonlinear polarization vector in terms of the d matrix and the components of the electric fields
4. Introduces the concept of phase matching
5. Calculates the phase matching angles and walk-off angles for a biaxial crystal for propagation along principal planes and in a general direction
Nonlinear optical phenomena are inherent in the quantum mechanical description of the interaction of electromagnetic radiation and matter, as has been ...