We have a long collaboration with the group of Joël Bellessa and Clémentine Symonds at iLM in Lyon on plasmonics. One of our main successes is around the investigation of Tamm-Plasmons which are 2D optical modes confined at the interface between a Bragg mirror (GaAs/AlAs) and a metallic layer (silver or gold). We have demonstrated that Tamm-Plasmons can be easily confined in the plane by patterning the metallic layer into microstructures with dimensions comparable with the light wavelenght. With the at C2N we demonstrated single photon emission from an InAs/GaAs quantum dot coupled to this localized mode. The people from Lyon also showed that lasing can be obtained from these localized states (see Figure).
Fig: Tamm plasmon laser. The right figure shows the emission diagramm and wavelength as a function of the pump power.
This project has resulted in several publications, among them:
- High quality factor confined Tamm modes, Symonds C., Azzini S., Lheureux G., Piednoir A., Benoit J. M., Lemaitre A., Senellart P., Bellessa J., Scientific Reports, 7, 3859 (2017)
- Polarization-Controlled Confined Tamm Plasmon Lasers, Lheureux Guillaume, Azzini Stefano, Symonds Clementine, Senellart Pascale, Lemaitre Aristide, Sauvan Christophe, Hugonin Jean-Paul, Greffet Jean-Jacques, Bellessa Joel, ACS Photonics, 2, 842 (2015)
- Confined Tamm Plasmon Lasers, C. Symonds, G. Lheureux, J. P. Hugonin, J. J. Greffet, J. Laverdant, G. Brucoli, A. Lemaître, P. Senellart, and J. Bellessa, Nano Lett., 13, 3179 (2013)
- Evidence for Confined Tamm Plasmon Modes under Metallic Microdisks and Application to the Control of Spontaneous Optical Emission, O. Gazzano, S. Michaelis de Vasconcellos, K. Gauthron, C. Symonds, J. Bloch, P. Voisin, J. Bellessa, A. Lemaître, and P. Senellart, Phys. Rev. Lett. 107, 247402 (2011)