Numerical simulation of amplification of space charge waves in n-InP films |
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| Authors: | Abel García-BarrientosAuthor Vitae Vassil PalankovskiAuthor Vitae |
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| Affiliation: | a Department of Mechatronics, Polytechnic University of Pachuca (UPP), Km. 20 Carretera Pachuca-Cd.Sahagun, Ex-Hacienda de Santa Barbara, 43830 Pachuca, Hidalgo, Mexico
b Advanced Materials and Device Analysis Group, Inst. for Microelectronics, TU Wien, Gusshausstr. 27-29, 1040 Vienna, Austria |
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| Abstract: | The non-linear interaction of space charge waves including the amplification in microwave and millimeter wave range in n-InP films, possessing the negative differential conductance phenomenon, is investigated theoretically. Both the amplified signal and the generation of harmonics of the input signal are demonstrated, which are due to non-linear effect of the negative differential resistance. It is possible to observe an amplification of the space charge waves in n-InP films of submicron thicknesses at essentially higher frequencies f <70 GHz, when compared with n-GaAs films f < 44 GHz. The increment observed in the gain is due to the larger dynamic range in n-InP than in n-GaAs films. |
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| Keywords: | n-InP film Negative differential conductivity Space charge waves |
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