1) mean-squared width
二阶矩宽度
2) mean-squared width of the spectral degree of coherence
光谱相干度二阶矩宽度
1.
In addition, it is found that in free space for small a the mean-squared width of the spectral degree of coherence w_c can be either larger or smaller than that of the spectral density w_i depending on ε, and critical value ε_0 increases with increasing α.
此外,在自由空间中,若光束相干参数α较小,随ε的变化光谱相干度二阶矩宽度ω_c可大于或小于其光谱强度二阶矩宽度ω_i,,且临界值ε_0随α的增大而增大;随着α的增大,则无论ε取何值都有ω_c>ω_i。
3) mean squared beam width
二阶矩束宽
1.
The closed-form expression for the mean squared beam width of annular beams propagating through atmospheric turbulence is derived by using the integral transform technique.
采用积分变换技巧,推导出了环状光束通过湍流大气传输二阶矩束宽的解析表达式,并研究了湍流对环状光束扩展的影响。
4) second-order moments of intensity
强度二阶矩
5) second-moment bandwidth and duration
二阶矩带宽和脉宽
6) generalized intensity second-order moments
广义强度二阶矩
补充资料：矩矩吒
【矩矩吒】
（动物）又作鸠鸠吒。鸡也。见求法高僧传等。
（动物）又作鸠鸠吒。鸡也。见求法高僧传等。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条