Factors Affecting Terahertz Emission from InGaN Quantum Wells under Ultrafast Excitation

Figure 6

(a) Room temperature luminescence spectra at different excitation intensities ranging from 5.56 to 1000 kW/cm² (spectrum 1 to 8). Reproduced with permission from Wiley materials. Copyright Wiley materials (b) Time-integrated PL spectra detected from a sample with 2.7 nm QW width at excitation fluences 0.02, 0.04, 0.11, 0.22, 0.43, 0.65, 0.87, 1.09, and 1.26 mJ/cm². Reproduced with permission from the American Physical Society. Copyright American Physical Society.

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