Published October 2007 | Version v1
Journal article Metadata-only

Experimental observation of two-photon photoelectric effect from silver aerosol nanoparticles

Creators

  • 1. Department of Physical Sciences, University of Helsinki, PO Box 64, FIN-00014, Helsinki (Finland)
  • 2. Laboratory of Physical Chemistry, University of Helsinki, PO Box 55, FIN-00014, Helsinki (Finland)
  • 3. Department of Biological and Environmental Sciences, University of Helsinki, PO Box 27, FIN-00014 Helsinki (Finland)

Description

We report on the observation of two-photon electron emission from silver nanoparticles suspended in nitrogen flow resulting from irradiating them with continuous wave and pulsed laser light with photon energies below the threshold of the single-photon photoelectric effect. The photoelectron yield is quadratic in the light intensity, and the two-photon electron emission threshold is evident. The efficiency of the two-photon photoelectric effect is determined for nanoparticles of various sizes. These experiments offer the net information on nonlinear quantum properties of an isolated single nanoparticle which is crucial for developing theoretical models

Additional details

Identifiers

DOI
10.1088/1367-2630/9/10/368;
PII
S1367-2630(07)53299-4;

Publishing Information

Journal Title
New Journal of Physics
Journal Volume
9
Journal Issue
10
Journal Page Range
p. 368
ISSN
1367-2630

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
39031972
Subject category
S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
Descriptors DEI
AEROSOLS; ELECTRON EMISSION; LASERS; NANOSTRUCTURES; NITROGEN; NONLINEAR PROBLEMS; PARTICLE MODELS; PARTICLES; PHOTOELECTRIC EFFECT; PHOTONS; QUANTUM MECHANICS; SILVER; VISIBLE RADIATION
Descriptors DEC
BOSONS; COLLOIDS; DISPERSIONS; ELECTROMAGNETIC RADIATION; ELEMENTARY PARTICLES; ELEMENTS; EMISSION; MASSLESS PARTICLES; MATHEMATICAL MODELS; MECHANICS; METALS; NONMETALS; RADIATIONS; SOLS; TRANSITION ELEMENTS