Efficient generation of extreme terahertz harmonics in three-dimensional Dirac semimetals
We show that three-dimensional (3D) Dirac semimetals (DSMs) can achieve highly efficient terahertz high-order harmonic generation (HHG) up to the 31st harmonic with input intensities ≈10MW/cm^{2}—over 10^{5} times lower than required in conventional terahertz HHG systems. Our theory reveals that thi...
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| Glavni autori: | , , , , , |
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| Format: | Artigo |
| Jezik: | Inglês |
| Izdano: |
American Physical Society
2020-11-01
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| Serija: | Physical Review Research |
| Online pristup: | http://doi.org/10.1103/PhysRevResearch.2.043252 |
| Oznake: |
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