Title of article :
Far-field intensity distribution and M2 factor of hollow Gaussian beams
Author/Authors :
Shao، Jianda نويسنده , , Fan، Zhengxiu نويسنده , , Deng، Degang نويسنده , , Fu، Xiaoyong نويسنده , , Wei، Chaoyang نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2005
Abstract :
The far-field intensity distribution of hollow Gaussian beams was investigated based on scalar diffraction theory. An analytical expression of the M2 factor of the beams was derived on the basis of the second-order moments. Moreover, numerical examples to illustrate our analytical results are given.
Keywords :
Ultrafast optics , Ultrafast phenomena , COHERENCE , statistical optics , Speckle , instrumentation , Measurement , Metrology , Surface measurements , Roughness , scattering , rough surfaces
Journal title :
Applied Optics
Journal title :
Applied Optics
