| Presentation | 2017-08-31 Room temperature quantum cascade detector based on coupled quantum well design Tatsuo Dougakiuchi, Kazuue Fujita, Toru Hirohata, Akio Ito, Masahiro Hitaka, Tadataka Edamura, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | High photoresponse in a room temperature quantum cascade detector (QCD) based on a coupled quantum well design is reported with a peak detection wavelength of 5.4 μm. In this design, forward electron transfer is engineered to be five times as large as relaxation back to the ground level. In this situation, the coupled quantum well QCD indicates a responsivity of 7 mA/W as well as a specified detectivity (D*) of 2.5×10^7 cmW^-1Hz^1/2, both at room temperature with commonly used 45? wedge configuration. Applying a waveguide configuration for the proposed QCD, an elevated responsivity of ~40 mA/W with a D* of 3.5×10^7 cmW^-1Hz^1/2 was obtained at room temperature. A laser absorption spectroscopy for N2O gas with proposed QCD and a distributed feedback quantum cascade laser has been also demonstrated. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Quantum cascade detector / Mid-infrared / Coupled quantum well / Room temperature operation / Waveguide configuration / Laser absorption spectroscopy |
| Paper # | R2017-30,EMD2017-24,CPM2017-45,OPE2017-54,LQE2017-27 |
| Date of Issue | 2017-08-24 (R, EMD, CPM, OPE, LQE) |
| Conference Information | |
| Committee | R / EMD / CPM / LQE / OPE |
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| Conference Date | 2017/8/31(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Tetsushi Yuge(National Defense Academy) / Yoshiteru Abe(NTT-AT) / Fumihiko Hirose(Yamagata Univ.) / Tsuyoshi Yamamoto(Fujitsu Labs.) / Kazutoshi Kato(Kyushu Univ.) |
| Vice Chair | Akira Asato(Fujitsu) / / Mayumi Takeyama(Kitami Inst. of Tech.) / Kiichi Hamamoto(Kyusyu Univ.) / Kouki Sato(Furukawa Electric Industries) |
| Secretary | Akira Asato(Hosei Univ.) / (RTRI) / Mayumi Takeyama(Tohoku Gakuin Univ.) / Kiichi Hamamoto(Muroran Inst. of Tech.) / Kouki Sato(Nihon Univ.) |
| Assistant | Shinji Inoue(Kansai Univ.) / Hiroyuki Okamura(Hiroshima Univ.) / Yoshiki Kayano(Univ. of Electro-Comm.) / Yuichi Akage(NTT) / Yasumasa Kawakita(Furukawa Electric Industries) / Naoki Fujiwara(NTT) / Takuo Tanemura(Univ. of Tokyo) |
| Paper Information | |
| Registration To | Technical Committee on Reliability / Technical Committee on Electromechanical Devices / Technical Committee on Component Parts and Materials / Technical Committee on Lasers and Quantum Electronics / Technical Committee on OptoElectronics |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Room temperature quantum cascade detector based on coupled quantum well design |
| Sub Title (in English) | |
| Keyword(1) | Quantum cascade detector |
| Keyword(2) | Mid-infrared |
| Keyword(3) | Coupled quantum well |
| Keyword(4) | Room temperature operation |
| Keyword(5) | Waveguide configuration |
| Keyword(6) | Laser absorption spectroscopy |
| 1st Author's Name | Tatsuo Dougakiuchi |
| 1st Author's Affiliation | Hamamatsu Photonics K. K.(Hamamatsu Photonics) |
| 2nd Author's Name | Kazuue Fujita |
| 2nd Author's Affiliation | Hamamatsu Photonics K. K.(Hamamatsu Photonics) |
| 3rd Author's Name | Toru Hirohata |
| 3rd Author's Affiliation | Hamamatsu Photonics K. K.(Hamamatsu Photonics) |
| 4th Author's Name | Akio Ito |
| 4th Author's Affiliation | Hamamatsu Photonics K. K.(Hamamatsu Photonics) |
| 5th Author's Name | Masahiro Hitaka |
| 5th Author's Affiliation | Hamamatsu Photonics K. K.(Hamamatsu Photonics) |
| 6th Author's Name | Tadataka Edamura |
| 6th Author's Affiliation | Hamamatsu Photonics K. K.(Hamamatsu Photonics) |
| Date | 2017-08-31 |
| Paper # | R2017-30,EMD2017-24,CPM2017-45,OPE2017-54,LQE2017-27 |
| Volume (vol) | vol.117 |
| Number (no) | R-191,EMD-192,CPM-193,OPE-194,LQE-195 |
| Page | pp.pp.31-36(R), pp.31-36(EMD), pp.31-36(CPM), pp.31-36(OPE), pp.31-36(LQE), |
| #Pages | 6 |
| Date of Issue | 2017-08-24 (R, EMD, CPM, OPE, LQE) |