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Title: Optical response of alkali metal atoms confined in nanoporous glass

We study the influence of optical radiation on adsorption and desorption processes of alkali metal atoms confined in nanoporous glass matrices. Exposure of the sample to near-IR or visible light changes the atomic distribution inside the glass nanopores, forcing the entire system to evolve towards a different state. This effect, due to both atomic photodesorption and confinement, causes the growth and evaporation of metastable nanoparticles. It is shown that, by a proper choice of light characteristics and pore size, these processes can be controlled and tailored, thus opening new perspectives for fabrication of nanostructured surfaces. (nanoobjects)
Authors:
; ; ; ; ; ; ; ;  [1]
  1. CNISM and DSFTA, University of Siena, via Roma 56, 53100 Siena (Italy)
Publication Date:
OSTI Identifier:
22375960
Resource Type:
Journal Article
Resource Relation:
Journal Name: Quantum Electronics (Woodbury, N.Y.); Journal Volume: 44; Journal Issue: 3; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ADSORPTION; ALKALI METALS; ATOMS; DESORPTION; DISTRIBUTION; EVAPORATION; GLASS; NANOPARTICLES; NANOSTRUCTURES