We report a theoretical model for a photorefractive running hologram in bulk-absorbing materials in the presence of self-diffraction and use this model to analyze experiments for photorefractive materials characterization. A nonperturbative technique that allows one to measure at the same time the diffraction efficiency and the output beam’s phase shift is reported, and its advantages are discussed. We use this technique and apply the theoretical model to compute some parameters for the electron-charge carriers (Debye screening length l_s≈0.03 μm, diffusion length L_D≈0.14 μm, and photoexcitation quantum efficiency Φ≈0.45) at the 514.5-nm-wavelength laser line for a nominally undoped Bi₁₂TiO₂₀ crystal. Particular experimental features are detected and assumed to be consequences of hole–electron competition in this sample.

© 2001 Optical Society of America

[Optical Society of America ]

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

Related Journal Articles

• Photorefractive grating formulation with any light modulation and excitation: exact and approximate steady-state analytic solutions (JOSAB)
• Temporal memory effects in photorefractive two-beam coupling: a study comparing n-doped and p-doped BaTiO₃ at 514 nm and 830 nm (JOSAB)
• Approach to space-charge field description in photorefractive crystals (JOSAB)
• Enhancement of Two-Wave Coupling in a Ce:KNSBN Crystal with Optimum Polarization of the Writing Beams (AO)
• Ultraviolet-light-gating two-color photorefractive effect in Mg-doped near-stoichiometric LiNbO₃ (JOSAB)

Related Conference Papers

• Photoinduced charge transfer processes in photorefractive CdTE:Ge
• Counter-phase charge gratings in crystals with shallow traps
• Two beam coupling in semi-insulating GaN using electroabsorption effect
• Recent Advances in Photorefractive Organic Materials
• Interband photorefraction in pure and Mg-doped near-stoichiometric LiTaO₃