2000/10/09 by Jon A. Herlocker, Canek Fuentes‐Hernandez, K. B. Ferrio +7 · 3 citations
Physics and Astronomy · Engineering · #Photorefractive and Nonlinear Optics #Advanced Fiber Laser Technologies #Solid State Laser Technologies
paper · doi:10.1063/1.1316077
openalex publication_date 2000/10/09 · openalex created_date 2025/10/10 · openalex updated_date 2026/06/26
The optical and photoconductive fatigue of fast photorefractive polymers have been studied in a family of C60-sensitized polymer composites containing styrene-based chromophores with varying ionization potential. Changes in response time and in photoconductivity were studied for exposures up to 104 J/cm2. Increasing the chromophore ionization potential beyond that of the polyvinylcarbazole host was found to stabilize the response time. Studies of the electric-field dependence of the steady-state diffraction efficiency in various samples confirm the role of C60 anions as possible traps.