Near-field optical study of photorefractive surface waves in BaTiO(3).
Near-field optical microscopy has been used to study photorefractive surface waves in BaTiO(3). The field distribution of the photorefractive surface wave near the crystal-air interface has been measured and compared with theory. Experimental data indicate that a micrometer-wide transition layer with dielectric and photorefractive properties that are different from the properties of the bulk BaTiO(3) exists near the interface.
Smolyaninov
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Davis
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