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[paopaowenhua]

The Ansys Insight post named “Why FDTD uses pulsed light source excitation instead of sine wave light source？” on old forum website is not available. And I can't find it on new learning forum. Could you help paste the content？@gsun FDTD Solutions为什么采用脉冲光源激励而不采用正弦波光源 86

[Guilin Sun]

The Chinese version is here: Ansys Insight: FDTD õ©║õ╗Çõ╣êÚççþö¿ÞäëÕå▓Õàëµ║ɵ┐ÇÕè▒ÞÇîõ©ìÚççþö¿µ¡úÕ╝ªµ│óÕàëµ║É
Basically, whether you want a broadband or single-frequency result, the simulation with pulse source is much faster than using a sinusoidal wave, which will need an initial transient time, and then long steady state time in order to get the result at only a single frequency.