Colton Willhardt, Jack Bogrett, Nick Glumac
Quantitative information on the temperature dependence of BO2 emission band structure has been limited by the scarcity of experimentally validated spectral data. In this work, we present an experimental characterization of the visible A-X BO2 emission spectrum under well-controlled shock tube conditions across temperatures of 2200–3750 K. Spectrally resolved emission measurements reveal reproducible changes in the band structure with temperature. This work provides reference data for use in thermometry of boron combustion environments, while further guiding refinement of BO2 spectral modeling.