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Conferences > QELS > 2002 > QTuD > QTuD3
  • Quantum Electronics and Laser Science Conference
  • OSA Technical Digest (Optica Publishing Group, 2002),
  • paper QTuD3

Optical Nonlinearity and Light-Induced Structural Transformations in Gallium Nanoparticles

V.A. Fedotov, K.F. MacDonald, G.C. Stevens, S. Pochon, and N.I. Zheludev

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Abstract

Gallium, confined at an interface with silica, has been found to respond dramatically to low power optical excitation when held at temperatures close to its melting point (29.8°C). Intensities of just a few kW/cm2 can reversibly modulate the intensity (by up to 40%) and phase (by as much as several degrees) of reflected light as the result of a light-induced structural transition occurring in a layer of gallium ~30 nm thick.1

© 2002 Optical Society of America

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