Suitability of SPECFEM3D for GHz range viscoelastic simulations

[SMA-Shoja]

Dear SPECFEM community,
I want to to use SPECFEM3D to simulate a sample of 100 um^3 with a 4 GHz ricker wavelet and a Q factor of 100 in an anisotropic medium. I know SPEFEM3D is capable of doing so for Seismology and ultrasound applications up to MHz range, but can it handle GHz frequencies specifically in a viscoelastic medium?

[homnath]

Hi Aydin Shoja, As long as the mesh can resolve the desired frequency, it should be fine. The main challenge with higher frequencies is the need for smaller mesh elements. However, if you're simulating GHz frequencies in a micrometer-scale model, this shouldn't pose a problem. 🙂 Best, Hom Nath

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--------------------------------------- Hom Nath Gharti, PhD Assistant Professor | Digital Earth Scientist https://www.digitalearthscience.com/ Department of Geological Sciences & Geological Engineering Queen’s University Miller Hall 314, 36 Union St Kingston, ON K7L 3N6, Canada Queen’s University is situated on traditional Anishinaabe and Haudenosaunee Territory.<https://www.queensu.ca/encyclopedia/t/traditional-territories>

________________________________ From: Aydin Shoja ***@***.***> Sent: Wednesday, July 9, 2025 11:24 AM To: SPECFEM/specfem3d ***@***.***> Cc: Subscribed ***@***.***> Subject: [SPECFEM] Suitability of SPECFEM3D for GHz range viscoelastic simulations (Discussion #1820) Dear SPECFEM community, I want to to use SPECFEM3D to simulate a sample of 100 um^3 with a 4 GHz ricker wavelet and a Q factor of 100 in an anisotropic medium. I know SPEFEM3D is capable of doing so for Seismology and ultrasound applications up to MHz range, but can it handle GHz frequencies specifically in a viscoelastic medium? — Reply to this email directly, view it on GitHub<#1820>, or unsubscribe<https://github.com/notifications/unsubscribe-auth/ABMCQ4W4UPTHPF76WIIDJF33HUX2XAVCNFSM6AAAAACBEOWA26VHI2DSMVQWIX3LMV43ERDJONRXK43TNFXW4OZYGU2TSOJUGI>. You are receiving this because you are subscribed to this thread.Message ID: ***@***.***>