| Reference |
B. Min, T.J. Kippenberg, L. Yang, K.J. Vahala, J. Kalkman and A. Polman: Low threshold erbium-implanted toroidal microcavity laser In: [Proceedings of Conference on Lasers and Electro-Optics (CLEO), May 2004, San Francisco], OPG, 2004. - pp. 1-3 |
