@article{Janke2003Inver-8888,
  year={2003},
  doi={10.1103/PhysRevB.67.155206},
  title={Inversionless amplification of coherent terahertz radiation},
  volume={67},
  journal={Physical Review B},
  author={Janke, Christof and Haring Bolivar, Peter and Bartels, Albrecht and Kurz, Heinrich and Künzel, Harald},
  note={Article Number: 155206}
}

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    <dc:contributor>Janke, Christof</dc:contributor>
    <dc:contributor>Kurz, Heinrich</dc:contributor>
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    <dc:creator>Bartels, Albrecht</dc:creator>
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    <dcterms:abstract xml:lang="eng">We experimentally demonstrate inversionless amplification of the emission from electronic transitions in a solid state system inside a cavity. A semiconductor-based terahertz (THz) emitter is exposed to a coherent, phasematched THz background field during the emission process leading to an increase in the overall emitted THz power of more than one order of magnitude . The experimental concept and results are discussed within a three-level model and an extended density matrix approach.</dcterms:abstract>
    <dcterms:issued>2003</dcterms:issued>
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    <dc:contributor>Bartels, Albrecht</dc:contributor>
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    <dcterms:bibliographicCitation>First publ. in: Physical Review B 67 (2003), 155206</dcterms:bibliographicCitation>
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    <dc:contributor>Künzel, Harald</dc:contributor>
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    <dcterms:title>Inversionless amplification of coherent terahertz radiation</dcterms:title>
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    <dc:contributor>Haring Bolivar, Peter</dc:contributor>
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    <dc:creator>Kurz, Heinrich</dc:creator>
    <dc:creator>Janke, Christof</dc:creator>
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