Simultaneous determination of first-, second-, and third-order nonlinear optical properties of photorefractive polymers

Simultaneous determination of first-, second-, and third-order nonlinear optical properties of photorefractive polymers

Summary form only given. Using the variable-frequency ellipsometric technique, we measure the total refractive index modulation as a function of the frequency of the applied electric field. From these measurements we deduce the relative contributions of the poling birefringence, the Pockels, and the...

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Hauptverfasser: Sandalphon, Kippelen, B., Meerholz, K., Peyghambarian, N.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Birefringence
Electric variables measurement
Frequency measurement
Nonlinear optics
Optical modulation
Optical polymers
Optical refraction
Optical variables control
Photorefractive effect
Refractive index
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Zusammenfassung:Summary form only given. Using the variable-frequency ellipsometric technique, we measure the total refractive index modulation as a function of the frequency of the applied electric field. From these measurements we deduce the relative contributions of the poling birefringence, the Pockels, and the Kerr effects. The experimental setup for the variable frequency ellipsometric technique is presented. We show experimental data for two high-diffraction efficiency photorefractive polymer composites, DMNPAA:PVK:ECZ:TNF and FDEANST:PVK:ECZ:TNF.