2

Nonlinear Optical Processes

This chapter

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

2.1      Introduction

Nonlinear optical phenomena are inherent in the quantum mechanical description of the interaction of electromagnetic radiation and matter, as has been ...

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