waist radius

Through the ABCD matrix, a Z type cavity was designed, a good pattern matching was achieved, and the waist radius of frequency doubling in the crystal was controlled.

通过ABCD矩阵，设计了Z型谐振腔，合理控制了模式匹配以及倍频晶体处的束腰半径。

When the waist radius of the fundamental wave is small, the walk-off is the main factor that makes the SHG and THG conversion efficiency decrease, while the effect of detuning angle is little.

初始入射基频光束腰半径较小时，离散效应是二次谐波转换和三次谐波转换效率降低的主要因素，失谐角对三次谐波转换的影响较小；

In this article the waist radius ( W_ ( 02)) and its location ( Z_2) of expanded beam by telescope has been proved.

本文推导出经扩束望远镜扩束后的束腰半径（W（02））和所在位置（Z2）。

Through numerical simulation, spatial walk-off, pulse width and intensity distribution of second harmonic are analyzed with different crystal lengths, waist radius, pulse widths.

通过数值模拟，研究不同晶体长度、束腰半径和脉宽时的谐波脉宽、空间走离和强度分布情况。

As the waist radius of the fundamental wave increases, the effect of the walk-off slowly reduces and the effect of detuning angle increases.

随着束腰半径的增加，离散效应的影响逐渐减小，失谐角对三次谐波转换的影响逐渐增加。