High temperature spectroscopy can provide very useful information to researchers and industrial end users that need a deeper understanding of their reaction dynamics. In situ measurements of reflection, absorbance and emission can be facilitated through the use of fibers optics. The fiber optic sampling process is unobtrusive and provides for physical separation of the sampling interface from the analytical instrumentation of a few meters up to >100 meters depending on the wavelengths being studied.
Avantes offers probe solutions for operation inside of cracking furnaces as well as many other harsh environments. The fiber optics used for these probes are specialized metal coated fibers that can withstand temperatures in the range of 500-800C. Probes are available in various lengths and diameters and may include a gas purge option (see image). Multiple standard and custom probe configurations are available at affordable prices.
An example of a research application for this probe can be found at the following link. (Single-site trinuclear copper oxygen clusters in mordenite for selective conversion of methane to methanol)