| Presentation | 2007-11-27 Generation of THz signals using nonlinear waves in semiconductor devices and circuits Koichi NARAHARA, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We discuss several topics concerning the generation and management of THz signals using nonlinear waves in semiconductor devices and circuits. A transmission line periodically loaded with resonant tunneling diodes (RTDs) supports the exponential (sinusoidal) mode at the voltage range smaller (larger) than the peak voltage. It is observed that the quasi-steady isolated pulses resulting from the coupling of the exponential and sinusoidal modes are compressed greatly. In addition, when a step pulse is input to the RTD line, the pulse edge exhibits the back-and-forth propagation. Both the pulse and continuous waves can be generated through these characteristics of RTD lines. Composite right- and left-handed (CRLH) transmission lines exhibit both the right- and left-handed properties. We found that the nonlinear Schrodinger equation governs the wave propagation in CRLH lines introducing nonlinearity by varactors, and discuss the dynamics of quasi-solitons developed in one- and two-dimensional CRLH lines. Solitons are also supported in the gated two-dimensional electron gas (2DEG) systems. We developed a numerical solver of electron transport in the gated 2DEG. We discuss the application of electronic solitons as a THz generator after describing the dynamics of solitons numerically. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | nonlinear waves / switch lines / resonant tunneling diodes / CRLH lines / semiconductor plasmas |
| Paper # | ED2007-193 |
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| Conference Information | |
| Committee | ED |
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| Conference Date | 2007/11/20(1days) |
| Place (in Japanese) | (See Japanese page) |
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| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Electron Devices (ED) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Generation of THz signals using nonlinear waves in semiconductor devices and circuits |
| Sub Title (in English) | |
| Keyword(1) | nonlinear waves |
| Keyword(2) | switch lines |
| Keyword(3) | resonant tunneling diodes |
| Keyword(4) | CRLH lines |
| Keyword(5) | semiconductor plasmas |
| 1st Author's Name | Koichi NARAHARA |
| 1st Author's Affiliation | Faculty of Engineering, Yamagata University() |
| Date | 2007-11-27 |
| Paper # | ED2007-193 |
| Volume (vol) | vol.107 |
| Number (no) | 355 |
| Page | pp.pp.- |
| #Pages | 6 |
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