Title: NIST Releases Infrared Spectrometer Calibration Atlas
NIST has published an atlas for calibrating infrared spectrometers using absolute wavenumber measurements. The atlas covers frequencies from 488 to 3120 cm-1 and uses five primary calibration molecules: OCS, N2O, NO, CO, and CS2. These molecules provide complete coverage of certain spectral regions, with additional information from NO, CO, and CS2 filling in gaps.
The calibration lines in the atlas are indicated by an asterisk and are based on frequency rather than wavelength measurements. Data from Fourier transform measurements and other complementary techniques were used to determine frequency differences within each band. The atlas and wavenumber tables consist of spectral maps and tables of transition wavenumbers, calculated from molecular constants derived for this work based on frequency measurements.
The procurement and release of this data was coordinated under NIST Standard Reference Database 118, with updates to the content occurring in April 1998. Customer support inquiries can be directed to the provided email address.
Source: https://www.nist.gov/pml/wavenumbers-calibration-ir-spectrometers
Keywords: Quantum Sensors, Quantum Metrology, Quantum Sensors Applications
