It is concluded that at the boundary of brillouin zone there is a strong broadening in the magnon linewidth and softening 发现在布里渊区边界区域磁振子谱的软化和磁振子谱线增宽最明显。
For many applications , for example , high - resolution spectroscopic studies , however , the narrow linewidth is necessary 对于很多应用,例如高分辨率的光谱研究,又需要opo输出线宽较窄。
The reaction of threshold on linewidth of ring ' s output light is pointed out . this provides a new auxiliary method to determine the threshold 最后提出一种利用有源腔内ase输出光的线宽变化特征来判断有源光纤环形腔阈值点的辅助方法。
If we like to obtain the narrow linewidth parametric beam output , applying soft apertures to input pump beam is helpful , but it will also 如果想获得窄线宽输出,采用软光圈直接输入泵浦光将有助于压缩输出参量光的线宽,代价是转换效率降低。
The high - finesse cavity can be used to measure the laser linewidth due to its narrower cavity linewidth , with which the linewidth of dbr laser is measured as 1 . 49mhz 由于高精细度腔窄线宽特点,它可用来测量激光线宽。实验中用它测量dbr激光器线宽为1 . 49mhz 。