Infrared/terahertz double resonance spectroscopy remote sensing

IR/THz double resonance spectroscopy has recently been proposed as a method of chemical remote sensing with isotopic molecular recognition specificity at atmospheric pressures for distances approaching one kilometer. Double resonance signatures are calculated, from which the sensitivity and hardware requirements for a double resonance remote sensing spectrometer may be estimated. The extension of this technique to heavier and more complex molecules is discussed. © 2011 IEEE.