Carbon tetrafluoride (CF₄), also known as tetrafluoromethane and sometimes CFC-14, has a natural lithospheric source, however the enhanced modern-day concentrations relative to this natural source have arisen from leaks into the atmosphere by industry, most significantly related to the production of aluminium and semiconductors. A potent greenhouse gas, with one of the longest atmospheric lifetimes of 50,000 years, the abundance of carbon tetrafluoride is steadily increasing in the atmosphere. In order to monitor its concentration profiles using infrared sounders, accurate laboratory spectroscopic data are required. This work describes new high-resolution infrared absorption cross sections of pure and air-broadened carbon tetrafluoride over the spectral range 1190–1336 cm⁻¹, derived from spectra recorded using a high-resolution Fourier transform spectrometer (Bruker IFS 125HR) and a 26-cm-pathlength cell. Spectra were recorded at resolutions between 0.0018 and 0.03 cm⁻¹ (calculated as 0.9/MOPD; MOPD = maximum optical path difference) over a range of atmospherically relevant temperatures (190 – 296 K) and pressures (up to 760 Torr). These new absorption cross sections improve upon those previously used for remote sensing, and will provide a more accurate basis for retrievals in the future.

四氟化碳（CF ₄），也称为四氟甲烷，有时也称为CFC-14，具有天然岩石圈源，但是相对于该天然源，现代浓度的增加是由工业泄漏到大气中引起的，这与铝和半导体的生产。一种有力的温室气体，具有最长的大气寿命50,000年之一，其四氟化碳的含量在大气中稳定增加。为了使用红外测深仪监测其浓度分布，需要准确的实验室光谱数据。这项工作描述了光谱范围为1190–1336 cm ^-1的纯净的和空气膨胀的四氟化碳的高分辨率高分辨率红外吸收截面。，来自使用高分辨率傅立叶变换光谱仪（Bruker IFS 125HR）和26厘米光程单元记录的光谱。在与大气有关的温度（190 – 296 K）和压力（最高760 Torr）的范围内，以0.0018和0.03 cm ^-1之间的分辨率（计算为0.9 / MOPD； MOPD =最大光程差）记录光谱。这些新的吸收横截面改进了以前用于遥感的横截面，并将为将来的检索提供更准确的基础。