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Generation of ultrashort pulses of electromagnetic radiation in the mid- and far-infrared ranges |
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| Authors: | A A Lanin A B Fedotov A M Zheltikov |
| Institution: | 1. Faculty of Physics, Moscow State University, Moscow, 119992, Russia 2. International Laser Center, Moscow State University, Moscow, 119992, Russia 3. Russian Quantum Center, Moscow State University, Moscow, 119992, Russia |
| Abstract: | Generation of ultrashort pulses of electromagnetic radiation in the range of wavelengths from 3 to 17 μm is experimentally demonstrated using difference-frequency mixing of the signal and idler waves delivered through an optical parametric amplification of a week broadband seed by high-power near-infrared ultrashort laser pulses. Cross-correlation measurements demonstrate that pulses as short as a few cycles of electromagnetic field are produced in the mid- and far-infrared ranges by means of difference-frequency generation. |
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