Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Plz help me in this Laser Problem

  1. Mar 4, 2005 #1

    Plz help me in this laser problem!

    2. The energy level diagram of Cr+3 ion is shown. ruby Lasers have less chromium ions in aluminium oxide.

    A) what wavelength is emitted by ruby laser?
    B) What energy photons can pump chromium atoms in a ruby laser from the ground state to its second and third excited state?

    Here is the fig for this question:

    _______________________ 3.0 eV

    _______________________ 2.3 eV

    _______________________ 1.79 eV
    Metastable State

    Ground State

    Thanks in advance
  2. jcsd
  3. Mar 4, 2005 #2

    Doc Al

    User Avatar

    Staff: Mentor

    Well, what do you think the answers are?
  4. Mar 5, 2005 #3
    PLz help me i want heeeeeeeeeelp
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook