Physics of Internal Photoemission and Its Infrared Applications in the Low-Energy Limit

<div>Measured photoresponse at 5.3 K, and the fittings based on the escape-cone model. 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The vertical arrows indicate the GaAs and AlAs-like phonons. 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Advances in OptoElectronics

fig13

Figure 13

Figure 13: Physics of Internal Photoemission and Its Infrared Applications in the Low-Energy Limit 