'Laser transition' presentation slideshows

Fig. 4-1: Pure-crystal energy-band diagram

Fig. 4-1: Pure-crystal energy-band diagram. Fig. 4-2: n-type material. Fig. 4-3: p-type material. Fig. 4-4: Electron diffusion across a pn junction. Fig. 4-5: Reverse bias condition. Fig. 4-6: Forward bias condition. Fig. 4-8: Double-heterostructure configuration.

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