Current Status of Frequency Calibration Tables (0 to 3000 CM-1) for Tunable Diode Lasers from Heterodyne Frequency Measurements

摘要: The Time and Frequency Division of the National Institute Standards Technology (NIST), Boulder Laboratories, Molecular Spectroscopy NIST Gaithersburg Laboratories have collaborated over past few years in an effort to provide accurate frequency calibration tables. This involves use heterodyne measurements as well analysis fitting infrared spectra selected molecules. Of major interest are linear triatomic molecules OCS N2O, which together cover a sizeable portion 0 3000 cm−1 region. Some can be made by locking tunable diode laser (TDL) absorption feature OCS, for example, comparing TDL directly against CO2 standard. However, most recent required transfer oscillator relate synthesized from standards locked frequency. many was liquid-nitrogen-cooled CO laser. techniques tables resulting new on CS2 presented. Current status is given interim atlas, N2O several other interest.