Michael Shur's Advanced High Speed Devices (Selected Topics in Electronics PDF

By Michael Shur

ISBN-10: 9814287865

ISBN-13: 9789814287869

Complicated excessive pace units covers 5 parts of complicated gadget know-how: terahertz and excessive pace electronics, ultraviolet emitters and detectors, complicated III-V box impression transistors, III-N fabrics and units, and SiC units. those rising parts have attracted loads of consciousness and the updated effects offered within the publication might be of curiosity to such a lot gadget and electronics engineers and scientists. The members variety from admired teachers, comparable to Professor Lester Eastman, to key US executive scientists, equivalent to Dr Michael Wraback.

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Extra info for Advanced High Speed Devices (Selected Topics in Electronics and Systems)

Sample text

9 V. According to the Dyakonov-Shur model4 this photoresponse peak at the lowest gate bias is interpreted as the fundamental plasmon resonance. 0 V, corresponding to the thirdharmonic plasmon resonance. 8 V. The results are completely different from that for standard HEMT devices having a single-gate finger fabricated on the same wafer showing monotonic dependence on the gate bias (plotted with a broken line in Fig. 10(a). Theoretical investigations in Refs. 5). Carrier dynamics under weakly photoexcited conditions in our device are simulated based on an extended drift-diffusion model29.

The number of fingers is 60 (61) for the 80-nm (350-nm) grating. Emission and Intensity Modulation of Terahertz Electromagnetic Radiation 41 (a) (b) Fig. 7. SEM images of a fabricated metal grating-gate (a) and semiconducting grating-gate (b) plasmonresonant emitter. (After Ref. 4. 1. DC-current-driven self oscillation Fourier-transformed far-infrared spectroscopic (FTIR) measurements were carried out for those samples10, 11, 23, 24. The samples were placed in the source position of the vacuum cavity of the FTIR.

One can see that the emission intensity has a threshold property against VDS and has a super-linear (nearly quadratic) dependence on VDS. It is considered that the former property reflects on the coherent plasmons excited by the plasmon instability3, 14, 15, while the latter property is attributed to the emission caused by the thermally excited incoherent plasmons due to injection of drifting hot electrons into the plasmon cavities10, 24, 26, 27. FTIR measured spectra for semiconducting-grating gate samples having LG1/LG2 = 150 nm/1850 nm are shown in Fig.

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Advanced High Speed Devices (Selected Topics in Electronics and Systems) by Michael Shur


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