| Presentation | 2019-05-31 High-speed operation of a quantum cascade detector Tatsuo Dougakiuchi, Akio Ito, Masahiro Hitaka, Kazuue Fujita, Tadataka Edamura, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We report a high-speed operation of a quantum cascade detector (QCD) which is a mid-infrared photodetector using intersubband transition of electrons. In QCDs, the electrons excited by intersubband absorption contributes for output photocurrent through the transport to neighboring quantum well via resonant tunneling effect and relaxation to lower energy levels via longitudinal optical phonon scattering. The transport process can be estimated to several tens picosecond, therefore QCD is expected to indicate a high-speed photoresponse. In this paper, we show a high-speed QCD with a cutoff frequency of ~5 GHz characterized through a heterodyne beat measurement using two distributed feedback quantum cascade lasers. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | quantum cascade detector / quantum cascade laser / mid-infrared / heterodyne interferometry |
| Paper # | LQE2019-19 |
| Date of Issue | 2019-05-23 (LQE) |
| Conference Information | |
| Committee | LQE / LSJ |
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| Conference Date | 2019/5/30(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Kiichi Hamamoto(Kyusyu Univ.) |
| Vice Chair | Hiroshi Aruga(Mitsubishi Electric) |
| Secretary | Hiroshi Aruga(SEI) / (Furukawa Electric Industries) |
| Assistant | Masaya Nagai(Osaka Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Lasers and Quantum Electronics / The Laser Society of Japan |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | High-speed operation of a quantum cascade detector |
| Sub Title (in English) | |
| Keyword(1) | quantum cascade detector |
| Keyword(2) | quantum cascade laser |
| Keyword(3) | mid-infrared |
| Keyword(4) | heterodyne interferometry |
| 1st Author's Name | Tatsuo Dougakiuchi |
| 1st Author's Affiliation | Hamamatsu Photonics K.K.(HPK) |
| 2nd Author's Name | Akio Ito |
| 2nd Author's Affiliation | Hamamatsu Photonics K.K.(HPK) |
| 3rd Author's Name | Masahiro Hitaka |
| 3rd Author's Affiliation | Hamamatsu Photonics K.K.(HPK) |
| 4th Author's Name | Kazuue Fujita |
| 4th Author's Affiliation | Hamamatsu Photonics K.K.(HPK) |
| 5th Author's Name | Tadataka Edamura |
| 5th Author's Affiliation | Hamamatsu Photonics K.K.(HPK) |
| Date | 2019-05-31 |
| Paper # | LQE2019-19 |
| Volume (vol) | vol.119 |
| Number (no) | LQE-63 |
| Page | pp.pp.31-34(LQE), |
| #Pages | 4 |
| Date of Issue | 2019-05-23 (LQE) |