Mixing of 30 THz laser radiation with nanometer thin-film Ni-NiO-Ni diodes and integrated bow-tie antennas |
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Authors: | C Fumeaux W Herrmann H Rothuizen P De Natale F K Kneubühl |
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Institution: | (1) Institute of Quantum Electronics, Swiss Federal Institute of Technology (ETH), CH-8093 Zürich, Switzerland;(2) European Laboratory for Nonlinear Spectroscopy (LENS), Largo Enrico Fermi 2, Florence, Italy |
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Abstract: | Mixing experiments with 30 THz CO2-laser radiation as well as the detection of 35 ps 30 THz pulses of an optical-free-induction-decay CO2-laser system have been performed with the first nanometer thin-film Ni-NiO-Ni diodes with a minimum contact area of 0.012 µm2. Difference frequencies up to 85 MHz were detected by mixing two different CO2-laser beams coupled to the diode with an integrated bow-tie antenna. The dependence of the beat signal on bias voltage, laser power and polarization of the infrared laser radiation was determined. |
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Keywords: | 07 62 42 65 |
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