This following applet is [b]animation for spontaneous emission and phase noise in optics[/b]
Created by prof Hwang Modified by Ahmed
Original project [url=http://www.phy.ntnu.edu.tw/ntnujava/index.php?topic=703.0]animation for spontaneous emission and phase noise in optics[/url]
You can change the probability between stimulated emission and spontaneous emission with slider.
Click the check box if you want to see the energy level.
You can click on the square box near the top to trigger the emission of incoming ray if you want, otherwise, it will be generated randomly (with selected probability).