Continuous spatial self-cleaning in GRIN multimode fiber for self-referenced multiplex CARS imaging, S. Wehbi, T. Mansuryan, K. Krupa, M. Fabert, A. Tonello, M. Zitelli, M. Ferraro, F. Mangini, Y. Sun, S. Vergnole, H. Kano, S. Wabnitz, V. Couderc - 2022