The absorption coefficients of the v3, 4.3-µ CO2 band were measured over a temperature range of about 1200° to 2400°K at various pathlengths. The hot CO2 sample was investigated in the exhaust jet of a small supersonic burner, while the jet composition was obtained using a radiation temperature measurement and a simple thermochemical calculation. The present experimental results are compared with existing experimental values and theoretical calculations. The results indicate that above 2000°K a weak line approximation can be used to describe the absorption or emission of the band. The apparent integrated band intensity of the CO2 fundamental as a function of temperature is also reported and discussed in relation to other measurements.
The Journal covers the entire field of infrared physics and technology: theory, experiment, devices and instrumentation. Its core topics can be summarized as the generation, propagation and detection, of infrared radiation; the associated optics, materials and devices; and its use in all fields of science, industry and medicine. Infrared techniques occur in many different fields, notably spectroscopy and interferometry; material characterization and processing; atmospheric physics, astronomy and space research. Scientific aspects include lasers, quantum optics, quantum electronics and semiconductor physics. Some important applications are medical diagnostics and treatment, industrial inspection and environmental monitoring. A fuller though not exhaustive list of topics would include: • Astronomy, Astrophysics and Space Research • Atmospheric transmission, turbulence and scattering. • Environmental applications: pollution and monitoring. • Detectors: quantum and thermal • Industrial applications • Infrared lasers including free electron lasers • Material properties, processing and characterization. • Medical applications • Nondestructive testing, active and passive. • Optical elements: lenses, polarizers, filters, mirrors, fibres, etc. • Radiometry: techniques, calibration, standards and instrumentation. • Remote sensing and range-finding • Solid-state physics • Thermal imaging: device design, testing and applications • Synchroton radiation in the infrared
As the world’s leading publisher of science and health information, Elsevier serves more than 30 million scientists, students, and health and information professionals worldwide. We are proud to play an essential role in the global science and health communities and to contribute to the advancement of these critical fields. By delivering world-class information and innovative tools to researchers, students, educators and practitioners worldwide, we help them increase their productivity and effectiveness. We continuously make substantial investments that serve the needs of the global science and health communities.
