Transition from Backscattering Speckles to Phase Conjugation in LiNbO3:Fe

• 来源期刊: 中国物理快报（英文版）
• 年，卷（期）: 2006,（8）
• 页码范围: 2101-2104
• 页数: 4页
• 语种: 英文

摘要

We investigate the backscattering for converging beams in iron-doped lithium niobate crystals. Due to the nonlinear properties of the crystal, backscattering exhibits temporally fluctuating speckles that make a transition to the phase conjugate of the incident beam under certain circumstances. Our observation seems to point to a new kind of self-pumped phase conjugation in photorefractive media.