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A rapid optoelectronic half-adder logic composed of a pair of GaAs metal-semiconductor-metal photodetectors

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5 Author(s)

A novel optoelectronic half-adder logic, composed of only two GaAs metal-semiconductor-metal photodetectors (MSM-PDs), is reported. The optoelectronic logic utilizes the features of the MSM-PD for both polarities of electrical bias (positive and negative). Without any other active devices such as transistors, the output delay time is short, less than 100 ps for the entire half-adder operation, which assures a very fast arithmetic operation

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Quantum Electronics, IEEE Journal of  (Volume:26 ,  Issue: 4 )