Experimental demonstration of dynamic spatiotemporal structured beams that simultaneously exhibit two orbital angular momenta by combining multiple frequency lines, each carrying multiple Laguerre–Gaussian modes

K. Pang, K. Zou, Z. Zhao, H. Song, Y. Zhou, M. Karpov, M. Yessenov, A. Shiri, H. Song, R. Zhang, H. Zhou, X. Su, N. Hu, A. Minoofar, T. J. Kippenberg, R. W. Boyd, A. F. Abouraddy, M. Tur, and A. E. Willner, Optics Letters 47, 4044-4047 (2022).

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