http://www.k-wave.org/forum/topic/simulating-a-gaussian-pulse-on-a-janus-particle Support for the k-Wave MATLAB toolbox en-US Thu, 14 May 2026 20:09:57 +0000 http://bbpress.org/?v=1.0.2 q http://www.k-wave.org/forum/search.php http://www.k-wave.org/forum/topic/simulating-a-gaussian-pulse-on-a-janus-particle#post-8846 Sun, 25 Jun 2023 22:18:26 +0000 Alireza_khz 8846@http://www.k-wave.org/forum/ <p>Hi<br /> I am new kwave user. Got some questions, I appreciate your answers in advance and it means a lot. </p> <p>1-I went through all examples, I saw no particle in the photoacoustic simulation let alone a Janus particle. I want to know if is there any way to simulate the Janus particle. </p> <p>2-I could not find an example where it is explaine how a gaussian pulse is simulated. what I understood is that I have to define a gaussian function with my laser parameters and then multiply the gaussian function into source.p0, but I still get various error such as dimensions. Is there an example where it is explaiend? I found people shared their codes and they simulated it.</p> <p>3-I also noticed that I have to define a initial pressure, I understand it is needed to solve the differential equation, since I have no clue what is the value, is there any way to simulate the phenomenon and have a good approximation of the generated wave?</p> <p>P.S. what I want to do is simulate a laser (15ns) pulse which illuminates on a janus particle. even if I simulate a disk of gold it is ok. So I realized I can use the axisymmetric example, and change the density and sound speed to gold values, but I dont know how I can make it a work with pulse mode laser. thank you. </p>