Highly efficient THz four-wave mixing in doped silicon
| Autor: | Nikolay V. Abrosimov, Viktoria Eless, Britta Redlich, B. N. Murdin, K. Saeedi, C. R. Pidgeon, Ian Galbraith, Sergey Pavlov, Nils Dessmann, Gabriel Aeppli, Helge Riemann, Alberto Perez-Delgado, Steven Chick, Nguyen H. Le, Konstantin Litvinenko, Alexander F. G. van der Meer |
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| Rok vydání: | 2021 |
| Předmět: |
Silicon
Materials science Photon Nonlinear optics Terahertz radiation Silicon photonics chemistry.chemical_element Physics::Optics 02 engineering and technology 01 natural sciences Article 010309 optics Four-wave mixing 0103 physical sciences Applied optics. Photonics Third-order non-linearities Terahertz- und Laserspektroskopie Terahertz optics business.industry Doping Free-electron laser QC350-467 FELIX Infrared and Terahertz Spectroscopy Optics. Light 021001 nanoscience & nanotechnology Atomic and Molecular Physics and Optics Photon upconversion Electronic Optical and Magnetic Materials TA1501-1820 chemistry Susceptibility Picosecond Optoelectronics 0210 nano-technology business FELIX Fel Technology |
| Zdroj: | Light: Science & Applications, 10 Light: Science & Applications, Vol 10, Iss 1, Pp 1-6 (2021) Light, Science & Applications Light: Science & Applications, 10, 1 Light: Science & Applications, 10 (1) |
| ISSN: | 2047-7538 2095-5545 |
| Popis: | Third-order non-linearities are important because they allow control over light pulses in ubiquitous high-quality centro-symmetric materials like silicon and silica. Degenerate four-wave mixing provides a direct measure of the third-order non-linear sheet susceptibility χ(3)L (where L represents the material thickness) as well as technological possibilities such as optically gated detection and emission of photons. Using picosecond pulses from a free electron laser, we show that silicon doped with P or Bi has a value of χ(3)L in the THz domain that is higher than that reported for any other material in any wavelength band. The immediate implication of our results is the efficient generation of intense coherent THz light via upconversion (also a χ(3) process), and they open the door to exploitation of non-degenerate mixing and optical nonlinearities beyond the perturbative regime. Light: Science & Applications, 10 (1) ISSN:2047-7538 |
| Databáze: | OpenAIRE |
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