Temperature dependence of gaas led and sio2 fabry perot cavity: instead of assuming the temperature is constant at room temperature, now, consider gaas led bandgap changes with temperature by using varshni equation. (a) plot the bandgap energy with temperature ranged from 298k to 398k (b) plot the wavelength corresponding to the bandgap energy with temperature ranging from 298k to 398k (c) plot the peak emission wavelength with temperature ranging from 298k to 398k. how much does the peak emission change? (d) compare the full-width-at-half-max linewidth for 298k, and 398k, does the linewidth broadened as temperature increases?