TY - SER AU - li, Peining AU - Yang, Xiaosheng AU - Mab, Tobias W.W. AU - Hanss, Julian TI - Reversible Optical Switching of Highly Confined Phonon-Polaritons with an Ultrathin Phase-Change Material KW - Surface Phonon-Polaritons (Sphps) KW - Phase-Change Material (Pcm) KW - Ultrathin Phase-Change Material ER -