![]() ; ; Marso, Michel ![]() in Electronics Letters (1998), 34(1998), 119-120 The authors demonstrate that a 550GHz bandwidth photodetector can be fabricated on low-temperature grown MBE GaAs. The pulse response shows 0.4 and 0.6ps rise and fall times, respectively. The bandwidth ... [more ▼] The authors demonstrate that a 550GHz bandwidth photodetector can be fabricated on low-temperature grown MBE GaAs. The pulse response shows 0.4 and 0.6ps rise and fall times, respectively. The bandwidth is in agreement with a value calculated using a carrier lifetime of 0.2ps, measured by femtosecond time-resolved reflectivity, and a capacitance of 0.014fF/um2, determined from microwave measurements. The device bandwidth is RC limited. [less ▲] Detailed reference viewed: 95 (0 UL)![]() ; Marso, Michel ![]() in Applied Physics Letters (1995), 67(1995), 106-108 We report on the investigation of the room-temperature optoelectronic behavior of a metal–semiconductor–metal two-dimensional electron gas photodiode based on the two-dimensional electron gas of a high ... [more ▼] We report on the investigation of the room-temperature optoelectronic behavior of a metal–semiconductor–metal two-dimensional electron gas photodiode based on the two-dimensional electron gas of a high electron mobility transistor structure. The photodetector is fabricated in the InP/InGaAs material system, without use of Al-containing layers. Optoelectronic measurements on a device with a finger spacing of 3 mm show a full width at half-maximum (FWHM) of the pulse response of <60 ps, which is the resolution limit of our measurement equipment. Low-temperature measurements at 40 K with electro-optical sampling at a wavelength of 890 nm show a FWHM of 1 ps. [less ▲] Detailed reference viewed: 56 (0 UL)![]() ; Marso, Michel ![]() in Proceedings of the 25th European Solid State Devices Research Conference, Den Haag, The Netherlands (1995) Detailed reference viewed: 35 (0 UL)![]() Marso, Michel ![]() in Proceedings of the 6th International Conference on InP and Related Compounds, Santa Barbara, California USA (1994) Detailed reference viewed: 81 (0 UL) |
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