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Updated: Jul 7, 2026

Phase-Dependent Control of Trap Depth and Persistent Luminescence in Strontium Aluminate Phosphors
Published on: December 5, 2025
Double phase conjugation in copper-doped potassium sodium strontium barium niobate crystals
Abstract:
We show a double phase conjugator with novel crystals of copper-doped potassium sodium strontium barium niobate. The phase conjugation reflectivity can reach 278% and depends on relative input positions of both incident beams. The response time with the input beam power ratio is measured and modeled as a function of input beam power ratio. The formation of the arch coupling loop is analyzed with theoretical simulation results and a positive feedback process is proposed. The influence of a self-pumped phase conjugation process on double phase conjugation fidelity is also discussed. It is necessary to avoid generating self-pumped phase conjugation to prevent the reduction of double phase conjugation fidelity.
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