Virtual source for rotational symmetric Lorentz-Gaussian beam

• 来源期刊: 中国光学快报（英文版）
• 年，卷（期）: 2012,（6）
• 页码范围: 72-76
• 页数: 5页
• 语种: 英文
• DOI: 10.3788/COL201210.062601

摘要

The virtual source for generation of rotational symmetric Lorentz-Gaussian (RLG) wave whose propagating dynamics present the rotational symmetry is identified.Closed-form expressions,including integral and differential representations,are derived for this kind of Lorentz-Gaussian (LG) wave,thereby yielding paraxial approximation of the RLG beam in the appropriate regime.From the spectral representation of this wave,the first three order corrections of nonparaxial approximations are determined for a corresponding paraxial RLG beam.Moreover,the relationship between the RLG beam and the Hermite-Gaussian beam is revealed.