1. PF Contest - Win "Conquering the Physics GRE" book! Click Here to Enter
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Two level laser

  1. Sep 5, 2011 #1
    1. The problem statement, all variables and given/known data
    consider a two level atomic system , solve the rate equations for the two levels to find expressions for N1(t) and N2(t) in terms of the intial populations N1(0) and N2(0)

    2. Relevant equations

    i have been able to derive the rate equations as:


    now all i need to do is integrate each equation to find expressions for N1(t) and N2(t) but i have failed at integrating these frist order linear differential equations
    3. The attempt at a solution
  2. jcsd
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Can you offer guidance or do you also need help?
Draft saved Draft deleted