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


Quantum Thermoelectricity in Single-Molecule Junctions
Nicolás Agraït  read more


Celebrating the Nobel Prize in Physics 2016
Quantum Physics with Topology produces new states of matter

Miguel A. Martín Delgado  read more


La sede en Alcobendas del Muncyt, retoma su ciclo de ciencia con una jornada sobre superconductividad, impartida por Belén Valenzuela, ICMM. Noticia LaVanguardia.com

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Indice h de los mejores investigadores españoles

h-index from a plot of decreasing citations for numbered papers.
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Lasing optical cavities based on macroscopic scattering elements

Antonio Consoli and Cefe López

Two major elements are required in a laser device: light confinement and light amplification. Light confinement is obtained in optical cavities by employing a pair of mirrors or by periodic spatial modulation of the refractive index as in photonic crystals and Bragg gratings. In random lasers, randomly placed nanoparticles embedded in the active material provide distributed optical feedback for lasing action. Recently, we demonstrated a novel architecture in which scattering nanoparticles and active element are spatially separated and random lasing is observed. Here we show that this approach can be extended to scattering media with macroscopic size, namely, a pair of sand grains, which act as feedback elements and output couplers, resulting in lasing emission. We demonstrate that the number of lasing modes depends on the surface roughness of the sand grains in use which affect the coherent feedback and thus the emission spectrum. Our findings offer a new perspective of material science and photonic structures, facilitating a novel and simple approach for the realization of new photonics devices based on natural scattering materials.

Scientific Reports

(a) Schematic sketch of the experiments. (b,c) Sand grains used in device #1. (d,e) Sand grains used in device #2. (f,g) Sand grains used in device #3.

Publications Highlights

ICMM-2017 - Sor Juana Inés de la Cruz, 3, Cantoblanco, 28049 Madrid, Spain. Tel: +34 91 334 9000. Fax: +34 91 372 0623. info@icmm.csic.es