Efficient Terahertz Pulse Generation in Laser-Induced Gas Plasmas |
| T. Löffler, M. Kress, M. Thomson and H.G. Roskos
Physikalisches Institut, Johann Wolfgang Goethe-Universität Frankfurt, Robert-Mayer-Str. 2-4, 60054 Frankfurt (Main), Germany |
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| Received: 22 08 2004; |
| In this contribution, we review the development of sources for far-infrared (terahertz) radiation based on laser-generated gas plasmas. We describe several generation mechanisms based on ponderomotive forces, external field screening, and optical second-harmonic biasing. These methods are compared with the standard techniques with respect to the achievable terahertz pulse energy. |
| DOI: 10.12693/APhysPolA.107.99 PACS numbers:42.65.Re, 72.30.+q, 78.47.+p |