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Author Topic: second harmonic generation  (Read 3662 times)

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Offline Wisam1222

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second harmonic generation
« on: August 8, 2021, 10:43 »
Hello Quantum atk users
I tried to Execution second harmonic generation for some crystals, but the result was zero.
Please help me solve this problem.
Execution file is attached
Thank you all
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Offline Tue Gunst

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Re: second harmonic generation
« Reply #1 on: August 10, 2021, 09:47 »
Not all materials are nonlinear optical materials. SHG is zero in systems with inversion symmetry for instance.
I recommend checking the GaAs example for instance on the object to learn about typical parameter settings:
https://docs.quantumatk.com/manual/Types/SecondHarmonicsGenerationSusceptibility/SecondHarmonicsGenerationSusceptibility.html
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