Figure 3
Inelastic spectra for each analyser on room temperature (100) single crystal diamond (a–c) and resistively heated (100) single crystal diamond to \(503 \pm 8\) K (d–f) showing normalised counts per shot as a function of energy transfer \(\hbar \omega\). Traces on the left, middle and right correspond to data obtained from the left, central and right analysers in Fig. 1. The spectra are fitted using Eq. (1) (solid black line) within the energy range defined by the vertical black dashed lines. Temperature is then measured from the intensity asymmetry between the positive and negative energy sides by the use of the detailed balance principle. The inelastic components for the centre analyser in the cold case are shown in Fig. 2 in the Supplemental Materials.
