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Abstract
In this thesis, techniques for detecting IR and mm wave absorption are explored. The vacuum system techniques and experimental setups used to collect data are included. Then, chapter 3 demonstrates the effectiveness of measuring the near IR spectrum of NO-X complexes through excitation into the dissociation continuum of NO-Ne. In chapter 4, I show documentation of the first measured near IR spectrum of NO-He in the region of the first NO overtone transition using the same technique as chapter 3. The next chapter details the testing of a new experimental setup to perform mm-UV double resonance experiments. This new technique of measuring mm-wave absorption through Resonance Enhanced Multi-Photon Ionization (REMPI) allows analysis of fully resolved rotational structure.