Strong nuclear contribution to the optical Kerr effect in niobium oxide containing glasses
RODRIGUEZ, Vincent
Laboratoire de Physico-Chimie Moléculaire [LPCM]
Institut des Sciences Moléculaires [ISM]
Laboratoire de Physico-Chimie Moléculaire [LPCM]
Institut des Sciences Moléculaires [ISM]
COUZI, Michel
Laboratoire de Physico-Chimie Moléculaire [LPCM]
Institut des Sciences Moléculaires [ISM]
Laboratoire de Physico-Chimie Moléculaire [LPCM]
Institut des Sciences Moléculaires [ISM]
RIVERO, Clara
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
The College of Optics and Photonics [Orlando] [CREOL]
< Reduce
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
The College of Optics and Photonics [Orlando] [CREOL]
Language
en
Article de revue
This item was published in
Physical Review B: Condensed Matter and Materials Physics (1998-2015). 2007, vol. 75, n° 10, p. 104207 (6 p.)
American Physical Society
English Abstract
The electronic and nuclear contributions to nonlinear optical properties of niobium oxide-based glasses have been measured using third-harmonic generation and pump-probe techniques. The results have been found to be in ...Read more >
The electronic and nuclear contributions to nonlinear optical properties of niobium oxide-based glasses have been measured using third-harmonic generation and pump-probe techniques. The results have been found to be in agreement with Hellwarth's model for niobium oxide (Nb2O5) concentrations below 30 mol %. Above 30 mol % Nb2O5, discrepancies with the theoretical model have been observed. It has been found that high niobium ion content induces a change of the local structure within the glass and favors the formation of three-dimensional blocks of corner-sharing NbO6 octahedra. Since similarities with crystalline structures are present, we propose that some specific collective vibrational modes could be at the origin of the extra nuclear contributions to the optical Kerr effect.Read less <
English Keywords
Kerr effect
Glasses
Niobium oxides
Optics
Origin
Hal imported