Figures

Figure 1

The spectral dependence of the refractive index calculated from the interference pattern in the reflectivity and absorption spectra of a GaN layer at 10 K and 300 K.

Figure 2

Experimental (solid curve) and calculated (dashed curve) spectra of 1.5 µm thick GaN layer. T = 10 K.

Figure 3

Experimental spectrum reproduced from Ref. [14] for a non-stressed GaN layer (dots) and the result of calculations (solid curve).

Figure 4

The reflectivity (dashed curve) and absorption (solid curve) spectra of a 0.5 µm thick GaN layer. T = 10 K.

Figure 5

The absorption spectrum of a 0.5 µm thick GaN layer measured in the high-energy spectral range. T = 10 K.

© 2003 The Materials Research Society