Brian R. Goeckerman Honors in Physics

Two-Photon, Two-Color Polarization Spectroscopy in Sodium
Two-photon, two color polarization spectroscopy involves the use of two dye lasers (two photons) lasing at different wavelengths (two colors) to cause atomic transitions. The purpose of the experiment was to measure ratios of reduced matrix elements in Sodium using two-photon, two-color polarization spectroscopy to create transitions from the 3s to 3p to 4d energy levels. Matrix elements are the expectation values of the interaction energy created by two tunable dye lasers. To make the desired measurements the linear degree of polarization must be calculated because matrix elements are dependent on the polarization of the interaction laser light.