Nanocrystalline silicon optomechanical cavities

D. Navarro-Urrios, N.E. Capuj, J. Maire, M. Colombano, J. Jaramillo-Fernandez, E. Chavez-Angel, L.L. Martin, L. Mercadé, A. Griol, A. Martínez, C. Sotomayer-Torres, Jouni Ahopelto

    Research output: Contribution to journalArticleScientificpeer-review

    14 Citations (Scopus)


    Silicon on insulator photonics has offered a versatile platform for the recent development of integrated optomechanical circuits. However, there are some constraints such as the high cost of the wafers and limitation to a single physical device level. In the present work we investigate nanocrystalline silicon as an alternative material for optomechanical devices. In particular, we demonstrate that optomechanical crystal cavities fabricated of nanocrystalline silicon have optical and mechanical properties enabling non-linear dynamical behaviour and effects such as thermo-optic/free-carrier-dispersion self-pulsing, phonon lasing and chaos, all at low input laser power and with typical frequencies as high as 0.3 GHz.
    Original languageEnglish
    Pages (from-to)9829-9839
    JournalOptics Express
    Issue number8
    Publication statusPublished - 2018
    MoE publication typeA1 Journal article-refereed


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