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Through this ICMM space slack account you will be able to navigate the funk, padel, soccer, dance, articles-icmm, scientic-questions channel and many other things such as helping the new icmm-nautas. You can also open your own #channel to find people who share your interests. Join us! Read more


The Instituto de Ciencia de Materiales de Madrid (ICMM) is an institute of the Consejo Superior de Investigaciones Cientificas (CSIC) (Spanish National Research Council) founded in December 1986, that belongs to the Area of Science and Technology of Materials, one of the eight Areas in which the CSIC divides its research activities.


Our mission is to create new fundamental and applied knowledge in materials of high technological impact, their processing and their transfer to the productive sectors at local, national and European scales (the true value of materials is in their use), the training of new professionals, and the dissemination of the scientific knowledge.

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Forthcoming Events


Revealing the fine structure of Andreev bound states in hybrid nanowires
Alfredo Levy Yeyati   read more


Fabricación de nanodispositivos electrónicos de materiales bidimensionales mediante la nanolitografía de oxidación local
Arancha Iglesias del Dago  read more


Exotic stationary states in ac-driven open quantum systems: Breakdown of the Floquet-Gibbs distribution
Georg Engelhardt  read more

Mechanical and Electric Control of Photonic Modes in Random Dielectrics

Dario Balestri, Maurangelo Petruzzella, Simona Checcucci, Francesca Intonti Niccolò Caselli Fabrizio Sgrignuoli, Frank W. M. van Otten, Andrea Fiore, Massimo Gurioli

Random dielectrics defines a class of non-absorbing materials where the index of refraction is randomly arranged in space. Whenever the transport mean free path is sufficiently small, light can be confined in modes with very small volume. Random photonic modes have been investigated for their basic physical insights, such as Anderson localization, and recently several applications have been envisioned in the field of renewable energies, telecommunications, and quantum electrodynamics. An advantage for optoelectronics and quantum source integration offered by random systems is their high density of photonic modes, which span a large range of spectral resonances and spatial distributions, thus increasing the probability to match randomly distributed emitters. Conversely, the main disadvantage is the lack of deterministic engineering of one or more of the many random photonic modes achieved. This issue is solved by demonstrating the capability to electrically and mechanically control the random modes at telecom wavelengths in a 2D double membrane system. Very large and reversible mode tuning (up to 50 nm), both toward shorter or longer wavelength, is obtained for random modes with modal volumes of the order of few tens of (λ/n)3.

Advanced Materials, 2019

a) Scanning electron microscopy image showing the upper freestanding microbridge, in planar view. The bottom panel is a cross view sketch with the definition of the parameters hand d0. b) Typical PL enhancement spectrum at a given tip position. Inset: histogram of the number of modes for different spectral ranges. c) Spectral and spatial detail of a random mode. Inset: map of the random mode. d) Maps of the maximum PL enhancement in six spectral regions. All the white scale bars in the figures correspond to 1 µm.

ICMM-2019 - Sor Juana Inés de la Cruz, 3, Cantoblanco, 28049 Madrid, Spain. Tel: +34 91 334 9000. info@icmm.csic.es