Ultralow-threshold erbium-implanted toroidal microlaser on silicon Back to all publications Publication date 1 January 2004 DOI http://dx.doi.org/10.1063/1.1646748 Reference A. Polman, B. Min, J. Kalkman, T.J. Kippenberg and K.J. Vahala, Ultralow-threshold erbium-implanted toroidal microlaser on silicon, Appl. Phys. Lett. 84, 1037-1039 (2004) Group Photonic Materials “” Request this article