Mittendorff, Martin and Winnerl, Stephan and Kamann, Josef and Eroms, Jonathan and Weiss, Dieter and Schneider, Harald and Helm, Manfred (2013) Ultrafast graphene-based broadband THz detector. APPLIED PHYSICS LETTERS, 103 (2): 021113. ISSN 0003-6951, 1077-3118
Full text not available from this repository. (Request a copy)Abstract
We present an ultrafast graphene-based detector, working in the THz range at room temperature. A logarithmic-periodic antenna is coupled to a graphene flake that is produced by exfoliation on SiO2. The detector was characterized with the free-electron laser FELBE for wavelengths from 8 mu m to 220 mu m. The detector rise time is 50 ps in the wavelength range from 30 mu m to 220 mu m. Autocorrelation measurements exploiting the nonlinear photocurrent response at high intensities reveal an intrinsic response time below 10 ps. This detector has a high potential for characterizing temporal overlaps, e. g., in two-color pump-probe experiments. (C) 2013 AIP Publishing LLC.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | HOT-ELECTRON BOLOMETER; ROOM-TEMPERATURE; SUPERLATTICE; RADIATION; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics > Chair Professor Weiss > Group Dieter Weiss |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 06 Apr 2020 09:36 |
| Last Modified: | 06 Apr 2020 09:36 |
| URI: | https://pred.uni-regensburg.de/id/eprint/16374 |
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