Absorption and Laser Induced Fluorescence Spectra of Molecular Iodine

In this experiment you will determine the energy levels of a diatomic molecule.

Objectives

In this experiment you will learn about the electronic, vibrational and rotational transitions in an iodine molecule.

  1. The vibrational properties of iodine in both ground and excited states will be determined from the absorption spectrum.
  2. The vibrational and rotational properties of iodine in both ground and excited states will be determined from the laser induced fluorescence spectrum.