Volume 118, Number 1, April 2017
|Number of page(s)||5|
|Section||Electromagnetism, Optics, Acoustics, Heat Transfer, Classical Mechanics, and Fluid Dynamics|
|Published online||26 May 2017|
Cascade self-splitting of a Hermite-cos-Gaussian correlated Schell-model beam
1 College of Science, Guizhou Institute of Technology - Guiyang 550003, PRC
2 School of Physical Science and Technology, Central South University - Changsha 410083, PRC
Received: 14 April 2017
Accepted: 11 May 2017
We propose a new kind of partially coherent beam with a nonconventional correlation function termed as Hermite-cos-Gaussian correlated Schell-model (HcGCSM) beam. The propagation properties of this novel model beam are investigated. It is found that the HcGCSM beam exhibits cascade self-splitting properties on propagation in free space, i.e., the initial single beam spot is proved to be successively split for two times during the whole propagation. Furthermore, we demonstrate that the cascade self-splitting phenomenon can be closely controlled through modulating the spectral degree of coherence of a HcGCSM beam in the source plane.
PACS: 42.25.Kb – Coherence / 42.25.Bs – Wave propagation, transmission and absorption / 42.60.Jf – Beam characteristics: profile, intensity, and power; spatial pattern formation
© EPLA, 2017
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