- Optics Letters, Vol. 37, Issue 18, pp. 3807-3809 (September 2012)
- Stefano Azzini, Davide Grassani, Matteo Galli, Lucio Claudio Andreani, Marc Sorel, Michael J. Strain, L. G. Helt, J. E. Sipe, Marco Liscidini, Daniele Bajoni
- Optics Express, Vol. 20, Issue 21, pp. 23100-23107 (October 2012)
- Stefano Azzini, Davide Grassani, Michael J. Strain, Marc Sorel, L. G. Helt, J. E. Sipe, Marco Liscidini, Matteo Galli, Daniele Bajoni
- Optics Express, Vol. 21, Issue 5, pp. 5715-5736 (March 2013)
- O. Karni, A. Capua, G. Eisenstein, D. Franke, J. Kreissl, H. Kuenzel, D. Arsenijević, H. Schmeckebier, M. Stubenrauch, M. Kleinert, D. Bimberg, C. Gilfert, J. P Reithmaier