Since it is difficult to directly solve the phase matching equations for biaxial crystal systems and to find out the incident phase matching angles(θ and ф), please suggest me a computer program or software to solve phase matching conditions.
Hello, I can point you to a program by a colleague of mine, Tino Lang (check link and his publication done with that program). Called chi2D. There you can add the sellmeyer coefficients of the different axis and you get a visual representation of the phase matching. Contact him to get the program.
https://www.researchgate.net/profile/Tino_Lang
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