Submillimeter measurements of N2 and air broadening of hypochlorous acid

The pressure induced broadening of a several Q0r pure rotational transitions of hypochlorous acid, HOCl, have been measured as a function of temperature. This set of rotational transitions is the dominant feature of the submillimeter spectrum in the 500μm range where several remote sensing instruments currently operate. Additional features throughout the submillimeter spectrum have been recorded at the full-resolution of the room temperature Doppler linewidth using multiplier chains in the 110-500μm wavelengths.