期刊
PHYSICAL REVIEW A
卷 95, 期 6, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.95.063420
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资金
- Villum Kann Rasmussen (VKR) Center of Excellence QUSCOPE
- Villum Fonden [00007335] Funding Source: researchfish
We consider harmonic generation from a semiconductor described in the two-band approximation. In particular, the signatures of the Floquet-Bloch states in the low-order harmonic spectra are studied. We find field-strength-dependent shifts of the position of resonant peaks. The shifts are analogous to the ponderomotive shifts in strong-field physics of atoms and molecules. We illustrate this theory by analyzing low-order harmonics generated from hexagonal boron nitride.
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