Intense terahertz generation at low frequencies using an interdigitated ZnSe large aperture photoconductive antenna
We demonstrate the generation of intense THz pulses at low frequencies, and THz pulse shaping, using a ZnSe interdigitated large aperture photoconductive antenna. We have experimentally measured a THz pulse energy of 3.6 ±0.8 μJ, corresponding to a calculated peak THz electric field of 143 ± 17 kV/c...
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Veröffentlicht in: | Applied physics letters 2013-10, Vol.103 (16) |
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Hauptverfasser: | , , , |
Format: | Artikel |
Sprache: | eng |
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Online-Zugang: | Volltext |
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Zusammenfassung: | We demonstrate the generation of intense THz pulses at low frequencies, and THz pulse shaping, using a ZnSe interdigitated large aperture photoconductive antenna. We have experimentally measured a THz pulse energy of 3.6 ±0.8 μJ, corresponding to a calculated peak THz electric field of 143 ± 17 kV/cm. We also used a binary phase mask instead of a traditional shadow mask with our interdigitated photoconductive antenna, which allows us to generate THz field profiles that range from a symmetric single-cycle THz pulse to an asymmetric half-cycle THz pulse. |
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ISSN: | 0003-6951 1077-3118 |
DOI: | 10.1063/1.4825165 |