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At the Microdevices for Photonics Laboratory we study and develop advanced micro-optical devices for photonics with applications in biology, health, aerospace, and security.

Main topics are:

  • Whispering Gallery Mode Resonator (WGMR) based micro-optical devices for biosensing and for optoelectronic oscillators
  • WGMR based coherent and non linear sources
  • Supercontinuum Generation in non linear fibers for biological applications
  • Resonant gratings based photonic devices
  • Glass Integrated Optical waveguides
  • Nanotips for SNOM, AFM and biological applications
  • Fiber optical transmission lines for particles accelerators

News

  1. G. Grigenti,G. Frigenti, D. Farnesi, X. Roselló-Mechó, A. Barucci, F. Ratto, M. Delgado-Pinar, M. V.Andrés, G. Nunzi Conti, S. Soria, Nonlinear optical effects and optomechanical oscillations in hollow Whispering Gallery Mode microresonators: Coexistence, suppression, amplification and route to chaos, Ceramics International (2022), issn 0272-8842, DOI: 10.1016/j.ceramint.2022.10.049.
  2. D. Farnesi, S. Pelli, S. Soria, G. Nunzi Conti, X. Le Roux, M. Montesinos Ballester, L. Vivien, P. Cheben, and C. Alonso-Ramos, Metamaterial engineered silicon photonic coupler for whispering gallery mode microsphere and disk resonators, Optica 8(12), 1511-1514 (2021). DOI: 10.1364/OPTICA.438395.
  3. G. Frigenti, L. Cavigli, F. Ratto, S. Centi, T. V. Murzina, D. Farnesi, S. Pelli, S. Soria, G. Nunzi Conti, Microbubble Resonators for Scattering-Free Absorption Spectroscopy of Nanoparticles, Optics Express 29 31130 (2021), DOI: 10.1364/OE.434868.
  4. D. Farnesi, S. Pelli, S. Soria, G. Nunzi Conti, X. Le Roux, M. Montesinos Ballester , L. Vivien, P. Cheben, and C. Alonsoi-Ramos Universal coupler for bulk whispering gallery mode resonators based on silicon subwavelength grating waveguides arXiv:2105.04626 (2021). http://arxiv.org/abs/2105.04626.
  5. Chiappini, A., Armellini, C., Bazzanella, N., Nodehi, S., Lukowiak, A., Pietralunga, S.M., Piccolo, V.,Zonta, D., Nunzi Conti, G., Righini, G.C., Ferrari, M. Modification of the Near-Infrared Spontaneous Emission in Er3+-Activated Inverse Silica Opals Physica Status Solidi (B) Basic Research, (2020) 257 (8), art. no. 1900476, DOI: 10.1002/pssb.201900476.
  6. Tran, T.N.L., Berneschi, S., Trono, C., Conti, G.N., Zur, L., Armellini, C., Varas, S., Carpentiero, A., Chiappini, A., Chiasera, A., Gates, J., Sazio, P.-J., Bollani, M., Lukowiak, A., Righini, G.C., Ferrari, M. SiO2-SnO2:Er3+ planar waveguides: Highly photorefractive glass-ceramics Optical Materials: X (2020), 7, art. no. 100056, DOI: 10.1016/j.omx.2020.100056.
  7. Frigenti, G., Cavigli, L., Ratto, F., Centi, S., Fernandez-Bienes, A., Garcia-Fernandez, T., Pelli, S.,Soria, S., Conti, G.N. All-optical photoacoustic sensing with hollow microresonators International Conference on Transparent Optical Networks, 2020-July, art. no. 9203410, DOI: 10.1109/ICTON51198.2020.9203410.
  8. Frigenti, G., Farnesi, D., Baldini, F., Berneschi, S., Giannetti, A., Lunelli, L., Pasquardini, L., Marco, M.-P., Pederzolli, C., Righini, G.C., Pelli, S., Conti, G.N., Soria, S. Whispering gallery mode resonators for chemical, biochemical and physical sensing International Conference on Transparent Optical Networks, 2020-July, art. no. 9203260, DOI: 10.1109/ICTON51198.2020.9203260.
  9. Berneschi, S., Bettazzi, F., Giannetti, A., Baldini, F., Nunzi Conti, G., Pelli, S., Palchetti, I. Optical whispering gallery mode resonators for label-free detection of water contaminants TrAC – Trends in Analytical Chemistry (2020), 126, art. no. 115856, DOI: 10.1016/j.trac.2020.115856.
  10. Frigenti, G., Cavigli, L., Fernández-Bienes, A., Ratto, F., Centi, S., García-Fernández, T., Conti, G.N., Soria, S. Microbubble resonators for all-optical photoacoustics of flowing contrast agents Sensors (Switzerland) (2020), 20 (6), art. no. 1696, DOI: 10.3390/s20061696.
  11. Pasqualotto, R., Tojo, H., Fassina, A., Giudicotti, L., Nardino, V., Oyama, N., Pelli, S., Raimondi, V., Ricciarini, S., Soare, S., Davis, S., Sozzi, C. Conceptual design of JT-60SA edge Thomson scattering diagnostic Journal of Instrumentation, (2020) 15 (1), art. no. C01011, DOI: 10.1088/1748-0221/15/01/C01011.
  12. Frigenti, G., Farnesi, D., Conti, G.N., Soria, S. Nonlinear optics in microspherical resonators Micromachines (2020), 11 (3), art. no. 303, DOI: 10.3390/mi11030303.
  13. Singh, P., Echeveria, L., Harrison, S., Reinhardt, C., Khitrov, V., Heinz, K., Chang, A., Nunzi-Conti, G., Farnesi, D., Bond, T. Microresonators for compact optical sensors (μRCOS) for gas detection Proceedings of SPIE – The International Society for Optical Engineering (2020), 11266, art. no. 112661F, DOI: 10.1117/12.2543815.
  14. Tran, L.T.N., Armellini, C., Balda, R., Benabdesselam, M., Berneschi, S., Blanc, W., Boulard, B., Carpentiero, A., Chiappini, A., Chiasera, A., Dentella, P., Dorosz, D., Eaton, S., Falconi, M.C., Fernandez, J., Ferrari, M., Gates, J., Gluchowski, P., Ischia, G., Lukowiak, A., Mady, F., Massella, D., Nunzi Conti, G., Prudenzano, F., Rossi, B., Ramponi, R., Righini, G.C., Sazio, P.-J., Speranza, G., Varas, S., Zonta, D., Zur, L. Photonic glass ceramics based on SnO2 nanocrystals: Advances and perspectives Proceedings of SPIE – The International Society for Optical Engineering (2020), 11276, art. no.1127614, DOI: 10.1117/12.2547526.