Publications [#314049] of Henry Everitt

Papers Published
  1. Phillips, DJ; Tanner, EA; De Lucia, FC; Everitt, HO, Infrared-terahertz double-resonance spectroscopy of CH F and CH Cl at atmospheric pressure, Physical Review A, vol. 85 no. 5 (May, 2012), pp. 52507-- [nph-data_query], [doi] .

    A method for highly selective remote sensing of atmospheric trace polar molecular gases is described. Based on infrared-terahertz double-resonance spectroscopic techniques, the molecule-specific coincidence between the lines of a CO2 laser and rotational-vibrational molecular absorption transitions provide two dimensions of recognition specificity: infrared coincidence frequency and the corresponding terahertz frequency whose absorption strength is modulated by the laser. Atmospheric pressure broadening expands the molecular recognition ``specificity matrix'' by simultaneously relaxing the infrared coincidence requirement and strengthening the corresponding terahertz signature. Representative double-resonance spectra are calculated for prototypical molecules CH3F and CH3Cl and their principal isotopomers from which a heuristic model is developed to estimate the specificity matrix and double-resonance signature strength for any polar molecule.