| Autor: |
Keita Ohtani, Dana Turčinková, Christopher Bonzon, Ileana-Cristina Benea-Chelmus, Mattias Beck, Jérôme Faist, Matthias Justen, Urs U Graf, Marc Mertens, Jürgen Stutzki |
| Jazyk: |
angličtina |
| Rok vydání: |
2016 |
| Předmět: |
|
| Zdroj: |
New Journal of Physics, Vol 18, Iss 12, p 123004 (2016) |
| Druh dokumentu: |
article |
| ISSN: |
1367-2630 |
| DOI: |
10.1088/1367-2630/18/12/123004 |
| Popis: |
GaAs/AlGaAs quantum cascade lasers based on four quantum well structures operating at 4.7 THz are reported. A large current density dynamic range is observed, leading to a maximum operation temperature of 150 K for the double metal waveguide device and a high peak output power more than 200 mW for the single surface plasmon waveguide device. A continuous wave, single mode, third order distributed feedback laser with a low electrical power dissipation and a narrow far-field beam pattern, which is required for a local oscillator in astronomy heterodyne spectrometers, is also demonstrated. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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