http://www.k-wave.org/forum/topic/how-to-define-the-source Support for the k-Wave MATLAB toolbox en-US Wed, 13 May 2026 03:10:16 +0000 http://bbpress.org/?v=1.0.2 q http://www.k-wave.org/forum/search.php http://www.k-wave.org/forum/topic/how-to-define-the-source#post-8180 Tue, 08 Jun 2021 14:59:40 +0000 Bradley Treeby 8180@http://www.k-wave.org/forum/ <p>Hi XUPeng,</p> <p>Depending on your length scales, the pulse width is probably short enough to assume stress confinement. In this case, you can model this as an initial value problem using <code>source.p0</code>. Otherwise you can assign the time varying source to follow the profile of the Gaussian laser pulse.</p> <p>Brad. </p> http://www.k-wave.org/forum/topic/how-to-define-the-source#post-8132 Wed, 21 Apr 2021 04:22:43 +0000 XP 8132@http://www.k-wave.org/forum/ <p>Hi<br /> I just started doing photoacoustic simulations of red blood cells. The pulse laser of 10ns pulse width is used in the experiment, so when I do the simulation with k-wave, should I use the initial pressure as the source, and then convolution the photoacoustic signal with the Gaussian signal, or directly use the time-varying source of the Gaussian signal? If i use Gaussian time-varying source , is the pulse width of the Gaussian signal the same as that of the laser?</p> <p>XUPeng </p>