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An ultrafast coherent long wavelength MIR source based on difference frequency generation was demonstrated. An average power of 2.5 mW at ∼18 μm was achieved. The angular distribution of the… Click to show full abstract
An ultrafast coherent long wavelength MIR source based on difference frequency generation was demonstrated. An average power of 2.5 mW at ∼18 μm was achieved. The angular distribution of the generated MIR source under the condition of tight-focusing limit shows the onset of conical emission of the MIR beam due to on-axis phase mismatching.
Keywords:
generation;
investigation long;
long wavelength;
tight focusing;
focusing limit
Journal Title: Optics express
Year Published: 2019
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Journal Title: Optics express
Year Published: 2019
Link to full text (if available)
Share on Social Media: Sign Up to like & get
recommendations!