| Presentation | 2011-10-28 Crossover of photon-assisted suppression to the enhancement of dc current in semiconductor superlattices driven by intense sub-THz radiation from a gyrotron Y. Sakasegawa, T. Idehara, Y. Yamaguchi, S. Mitsudo, N. Sekine, I. Hosako, K. Hirakawa, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In 1970, Esaki and Tsu proposed the Bloch oscillator based on the semiconductor superlattices (SLs). However, it has not been realized yet due to the formation of high-field domains (HFDs) in SLs. The large-amplitude operation scheme has been attracting considerable attention as a potential solution for suppressing the formation of HFDs, but nevertheless this scheme is technologically demanding. In order to examine a possibility of large amplitude operations of actual SL systems, we have investigated dc I-V characteristics in coupled SL-antenna devices under the irradiation of intense sub-THz fields from a gyrotron. We observed clear suppression of negative differential conductivity, a direct cause of the formation of HFDs.. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Semiconductor superlattice / Bloch oscillation / High-field domain / Terahertz / Gyrotron / Oscillator |
| Paper # | MWP2011-50 |
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| Conference Information | |
| Committee | MWP |
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| Conference Date | 2011/10/21(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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| Vice Chair | |
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| Paper Information | |
| Registration To | Microwave and Millimeter-wave Photonics (MWP) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Crossover of photon-assisted suppression to the enhancement of dc current in semiconductor superlattices driven by intense sub-THz radiation from a gyrotron |
| Sub Title (in English) | |
| Keyword(1) | Semiconductor superlattice |
| Keyword(2) | Bloch oscillation |
| Keyword(3) | High-field domain |
| Keyword(4) | Terahertz |
| Keyword(5) | Gyrotron |
| Keyword(6) | Oscillator |
| 1st Author's Name | Y. Sakasegawa |
| 1st Author's Affiliation | National Institute of Information and Communications Technology:Institute of Industrial Science and Institute for Nano Quantum Information Electronics, University of Tokyo() |
| 2nd Author's Name | T. Idehara |
| 2nd Author's Affiliation | Research Center for Development of Far-Infrared Region, University of Fukui |
| 3rd Author's Name | Y. Yamaguchi |
| 3rd Author's Affiliation | Research Center for Development of Far-Infrared Region, University of Fukui |
| 4th Author's Name | S. Mitsudo |
| 4th Author's Affiliation | Research Center for Development of Far-Infrared Region, University of Fukui |
| 5th Author's Name | N. Sekine |
| 5th Author's Affiliation | National Institute of Information and Communications Technology |
| 6th Author's Name | I. Hosako |
| 6th Author's Affiliation | National Institute of Information and Communications Technology |
| 7th Author's Name | K. Hirakawa |
| 7th Author's Affiliation | Institute of Industrial Science and Institute for Nano Quantum Information Electronics, University of Tokyo |
| Date | 2011-10-28 |
| Paper # | MWP2011-50 |
| Volume (vol) | vol.111 |
| Number (no) | 271 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |