Advantages and Disadvantages of Extraction-Exclusion Devices

Compared to other types of Auger suppressed photodetectors, extraction devices have the lowest dark currents. This means a number of their advantages over other types. Their operation is far from the hot carrier region, the level of g-r processes is lower, the problems with the stmcture heating are less pronounced. These devices are able to operate at relatively largest temperatures. 

Extraction diodes are the most advanced of all nonequilibrium detectors. The fabrication of these detectors is fully compatible with standard narrow-bandgap semiconductor technologies and with standard detector circuitry. Their function does not cause interference with surrounding circuitry, as is the case with magnetoconcentration devices. 

The most serious problem with extraction detectors at this time is their 1/f noise. The knee frequency of these devices is very high and reaches 20 MHz to 100 MHz. Large efforts have been directed to its investigation [391, 392], but currently the topic stiU remains an open issue. 

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