The spectra contain two recurring peaks. I fitted each with a Lorentzian plus a linear background in separate energy windows: 1.25–1.42 eV and 1.50–1.56 eV. The plots show \(y=aP^b\) fits for both peaks; the second peak’s intensity and position vary less consistently with power.

- [Peak intensity vs power](<<BENCH>/raw/commercial/luna-high/bench/t-pl/run-06/peak_intensity_vs_power.png>)
- [Peak position vs power](<<BENCH>/raw/commercial/luna-high/bench/t-pl/run-06/peak_position_vs_power.png>)
- [Fitted intensities and peak positions for every power](<<BENCH>/raw/commercial/luna-high/bench/t-pl/run-06/lorentzian_peak_results.csv>)

For the stronger peak, the intensity fit gives \(b=0.9233\pm0.0121\) (\(R^2=0.998\)); the position fit gives \(b=0.00447\pm0.00008\). For the second peak, the intensity fit gives \(b=0.409\pm0.200\) and the position fit gives \(b=0.00109\pm0.00104\).

RESULT: b = 0.923 ± 0.012