Second harmonic generation  Phase Matching

"Second harmonic generation  Phase Matching" allows you to select the crystal and to calculate all integral parameters: phasematching angles, phasematching angular (internal and external) width, phasematching wavelength width, phasematching temperature bandwidth, "walkoff" angles, effective nonlinear coefficient, and other. Fig. 1. The indices of refraction and the phasematching directions for all types of interactions Fig. 2. All possible phasematching angles versus of the azimuth angle Fig. 3. Phasematching angles versus of the wavelength of fundamental laser radiation All results are presented as the functioanal dependencies from the azimuth angle, wavelength, temperature, etc. For each crystal the presentaion of 21 graph dependenies for different phasematching parameters are possible. Fig. 4. Phasematching azimuth angle (XOY plane, NCPM interaction) versus of the fundamental laser radiation wavelength You can calculate the distributions for all the phasematching widthes. Fig. 5. Phasematching angular width versus of the fundamental laser radiation wavelength Fig. 6. Phasematching temperature width versus of the wavelength of the fundamental laser radiation Fig. 7. Phasematching spectral width versus of the fundamental laser radiation wavelength Also you can calculate the distributions of the efficiency of conversion in the fixedfieldapproximation (the absence of decreasing of the fundamental laser radiation). Fig. 8. Relation efficiency of conversion versus the angular mismatch Fig. 9. Relation efficiency of conversion versus the spectral mismatch For effective nonlinearities you can calculate the distributions from initial data and "field" of the effective nonlinearity. Fig. 10. Effective nonlinearity versus wavelength of fundamental laser radiation Fig. 11. "Field" of effective nonlinearity versus angles of orientation 