
%0 Journal Article
%A Hoare, R 
%A Mardling, R 
%A Troup, GJ 
%T Intensity Correlation Functions for 'Thermalised' TEMn0 Laser Beams
%J Australian Journal of Physics
%D 1986/08/01
%V 39
%N 4
%P 505-512
%K 
%R https://doi.org/10.1071/PH860505
%U https://www.publish.csiro.au/paper/PH860505 
%X A well-stabilised, single mode laser beam will give zero intensity correlation. However, a laser beam may be 'thermalised' by shining it on a rotating ground glass disc, and then intensity correlation experiments will give nonzero results. We present here calculations of the intensity correlation functions of the TEMlO, TEM20, TEM30 and TEM40 Gaussian-Hermite beams. We were led to perform these calculations by the results of intensity correlation measurements on a laser with 'butted-on' mirrors nearing the end of its useful life. 
