期刊
JOURNAL OF NONLINEAR OPTICAL PHYSICS & MATERIALS
卷 19, 期 1, 页码 167-176出版社
WORLD SCIENTIFIC PUBL CO PTE LTD
DOI: 10.1142/S0218863510005029
关键词
Nonlinear optics; photorefractive effect; spatial soliton pairs; two-photon photorefractive crystals
资金
- Science and Technology Development Foundation of Higher Education of Shanxi Province, China [200611042]
The incoherently coupled dark-dark, bright-bright, bright-dark screening-photovoltaic spatial soliton pairs are predicted in biased two-photon photovoltaic-photorefractive crystals under steady-state conditions. The result shows that these soliton pairs are established by the solitary beams which have the same polarization, wavelength, and are mutually incoherent. The screening-photovoltaic soliton pairs can be considered as the united form of screening soliton pairs and open or closed-circuit photovoltaic soliton pairs. They reduce to screening soliton pairs in the absence of photovoltaic effect, whereas they become photovoltaic soliton pairs under the open or closed-circuit conditions when the bias field is not applied. Moreover, the stability of these solitons has been investigated.
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