Higher-order harmonics of limited diffraction Bessel beams |
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Authors: | Ding Lu |
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Affiliation: | Department of Electronic Engineering, Southeast University, Nanjing, People's Republic of China. |
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Abstract: | We investigate theoretically the nonlinear propagation of the limited diffraction Bessel beam in nonlinear media, under the successive approximation of the KZK equation. The result shows that the nth-order harmonic of the Bessel beam, like its fundamental component, is radially limited diffracting, and that the main beamwidth of the nth-order harmonic is exactly 1/n times that of the fundamental. |
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