Boubaha, BNaidoo, DarrylGodin, TFromager, MForbes, AAït-Ameur, K2014-08-152014-08-152013-08Boubaha, B, Naidoo, D, Godin, T, Fromager, M, Forbes, A and Aït-Ameur, K. 2013. Spatial properties of coaxial superposition of two coherent Gaussian beams. Applied Optics, vol. 52(23), pp 5766-57721559-128Xhttp://www.ncbi.nlm.nih.gov/pubmed/23938430http://hdl.handle.net/10204/7601Copyright: 2013 Optical Society of America. This journal authorizes the publication of the information herewith contained. Published in Applied Optics, vol. 52(23), pp 5766-5772In this paper, we explore theoretically and experimentally the laser beam shaping ability resulting from the coaxial superposition of two coherent Gaussian beams (GBs). This technique is classified under interferometric laser beam shaping techniques contrasting with the usual ones based on diffraction. The experimental setup does not involve the use of some two-wave interferometer but uses a spatial light modulator for the generation of the necessary interference term. This allows one to avoid the thermal drift occurring in interferometers and gives a total flexibility of the key parameter setting the beam transformation. In particular, we demonstrate the reshaping of a GB into a bottle beam or top-hat beam in the focal plane of a focusing lens.enLaser beam shapingGaussian beamsInterferometric laser beam shapingArticleBoubaha, B., Naidoo, D., Godin, T., Fromager, M., Forbes, A., & Aït-Ameur, K. (2013). Spatial properties of coaxial superposition of two coherent Gaussian beams. http://hdl.handle.net/10204/7601Boubaha, B, Darryl Naidoo, T Godin, M Fromager, A Forbes, and K Aït-Ameur "Spatial properties of coaxial superposition of two coherent Gaussian beams." (2013) http://hdl.handle.net/10204/7601Boubaha B, Naidoo D, Godin T, Fromager M, Forbes A, Aït-Ameur K. Spatial properties of coaxial superposition of two coherent Gaussian beams. 2013; http://hdl.handle.net/10204/7601.TY - Article AU - Boubaha, B AU - Naidoo, Darryl AU - Godin, T AU - Fromager, M AU - Forbes, A AU - Aït-Ameur, K AB - In this paper, we explore theoretically and experimentally the laser beam shaping ability resulting from the coaxial superposition of two coherent Gaussian beams (GBs). This technique is classified under interferometric laser beam shaping techniques contrasting with the usual ones based on diffraction. The experimental setup does not involve the use of some two-wave interferometer but uses a spatial light modulator for the generation of the necessary interference term. This allows one to avoid the thermal drift occurring in interferometers and gives a total flexibility of the key parameter setting the beam transformation. In particular, we demonstrate the reshaping of a GB into a bottle beam or top-hat beam in the focal plane of a focusing lens. DA - 2013-08 DB - ResearchSpace DP - CSIR KW - Laser beam shaping KW - Gaussian beams KW - Interferometric laser beam shaping LK - https://researchspace.csir.co.za PY - 2013 SM - 1559-128X T1 - Spatial properties of coaxial superposition of two coherent Gaussian beams TI - Spatial properties of coaxial superposition of two coherent Gaussian beams UR - http://hdl.handle.net/10204/7601 ER -