Time-resolved dynamics of granular matter by random laser emission
| Autor: | Viola Folli, Claudio Conti, Neda Ghofraniha, Andrea Puglisi, Luca Leuzzi |
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| Rok vydání: | 2013 |
| Předmět: |
Operations research
Spectral power distribution Field (physics) Computer science granular motion FOS: Physical sciences Condensed Matter - Soft Condensed Matter Granular material 01 natural sciences Article 010305 fluids & plasmas law.invention Granular matter law 0103 physical sciences patterns 010306 general physics convection Multidisciplinary Random laser brownian motion fluctuations (theory) granular materials granular matter random lasers stationary states business.industry Dynamics (mechanics) transition Disordered Systems and Neural Networks (cond-mat.dis-nn) Condensed Matter - Disordered Systems and Neural Networks Laser Computational physics Condensed Matter::Soft Condensed Matter Amplitude random laser Agriculture Soft Condensed Matter (cond-mat.soft) Photonics business Optics (physics.optics) Physics - Optics |
| Zdroj: | Scientific reports (Nature Publishing Group) 3 (2013): art_n_2251. doi:10.1038/srep02251 info:cnr-pdr/source/autori:Viola Folli (1,2); Neda Ghofraniha (2,3); Andrea Puglisi (1,2); Luca Leuzzi (1,3); Claudio Conti (1,2)/titolo:Time-resolved dynamics of granular matter by random laser emission/doi:10.1038%2Fsrep02251/rivista:Scientific reports (Nature Publishing Group)/anno:2013/pagina_da:art_n_2251/pagina_a:/intervallo_pagine:art_n_2251/volume:3 Scientific Reports |
| ISSN: | 2045-2322 |
| DOI: | 10.1038/srep02251 |
| Popis: | Because of the huge commercial importance of granular systems, the second-most used material in industry after water, intersecting the industry in multiple trades, like pharmacy and agriculture, fundamental research on grain-like materials has received an increasing amount of attention in the last decades. In photonics, the applications of granular materials have been only marginally investigated. We report the first phase-diagram of a granular as obtained by laser emission. The dynamics of vertically-oscillated granular in a liquid solution in a three-dimensional container is investigated by employing its random laser emission. The granular motion is function of the frequency and amplitude of the mechanical solicitation, we show how the laser emission allows to distinguish two phases in the granular and analyze its spectral distribution. This constitutes a fundamental step in the field of granulars and gives a clear evidence of the possible control on light-matter interaction achievable in grain-like system. 16 pages, 7 figures |
| Databáze: | OpenAIRE |
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