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BSKNN as a self-pumped phase conjugator.

J Rodriguez, A Siahmakoun, G Salamo

|May 11, 2010

Summary

This summary is machine-generated.

Self-pumping was observed in cerium-doped Barium Strontium Potassium Sodium Niobate (BSKNN) crystals. High phase-conjugate reflectivity and intensity-dependent response times were measured for laser applications.

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Area of Science:

Nonlinear optics
Materials science
Solid-state physics

Background:

Ferroelectric crystals like Barium Strontium Potassium Sodium Niobate (BSKNN) are crucial for nonlinear optical applications.
Cerium doping can significantly alter the photorefractive properties of these materials.

Purpose of the Study:

To investigate the self-pumping phenomenon in cerium-doped BSKNN crystals.
To characterize the phase-conjugate reflectivity and response times under argon-ion laser illumination.

Main Methods:

Experimental observation of self-pumping in cerium-doped BSKNN.
Measurement of phase-conjugate reflectivity at four argon-ion laser wavelengths.
Analysis of response times as a function of input laser intensity.

Main Results:

Self-pumping was successfully observed in the BSKNN crystal.
Phase-conjugate reflectivities reached up to 30%.
Response times for self-pumping and beam fanning showed inverse proportionality to input intensity (0.5 and 0.82 power, respectively).

Conclusions:

Cerium-doped BSKNN crystals exhibit self-pumping capabilities.
The material demonstrates potential for applications requiring high phase-conjugate reflectivity and fast optical response.
Input intensity plays a critical role in determining the speed of optical processes within the crystal.