What is the physical mechanism for narrowing the bandwidth of the terahertz spectrum?

01 January 1970 0 4K Report

"An example of these effects is shown in Figure 11, where the focusing conditions are varied to demonstrate changes in the output THz waveforms and corresponding power spectra as the plasma

filament length, L, are controlled with the focusing lens."

Article High-Power Broadband Terahertz Generation via Two-Color Phot...

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