Litvin, IAMcLaren, MGForbes, A2009-04-242009-04-242008-08Litvin, IA, McLaren, MG and Forbes, A. 2008. Propagation of obstructed Bessel and Bessel–Gauss beams. Laser Beam Shaping IX, San Diego, CA, USA, 11 August 2008, Proceedings of SPIE, Vol. 7062, pp 7062180277-786Xhttp://hdl.handle.net/10204/3345Copyright 2008. Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibitedThe investigation into Bessel beams has been a topic of immense research during the past 20 years, due to the interesting properties they display. Bessel beams not only exhibit diffraction free propagation, but also reconstruction of the amplitude and phase of the beam after encountering an obstruction. Although this self reconstruction property has been previously modelled by numerous groups, the techniques involve rigorous, time-consuming computations. In this work we present an efficient method to accurately calculate the reconstruction of a Bessel beam after an arbitrary obstruction. Our method considers the well-known conical wave features of Bessel beams and looks at the projection of the obstruction in space as a result of the travelling conical waves that produce the Bessel beamsenBessel-Gauss beamsConical wavesConference PresentationLitvin, I., McLaren, M., & Forbes, A. (2008). Propagation of obstructed Bessel and Bessel–Gauss beams. Society of Photo-Optical Instrumentation Engineers. http://hdl.handle.net/10204/3345Litvin, IA, MG McLaren, and A Forbes. "Propagation of obstructed Bessel and Bessel–Gauss beams." (2008): http://hdl.handle.net/10204/3345Litvin I, McLaren M, Forbes A, Propagation of obstructed Bessel and Bessel–Gauss beams; Society of Photo-Optical Instrumentation Engineers; 2008. http://hdl.handle.net/10204/3345 .TY - Conference Presentation AU - Litvin, IA AU - McLaren, MG AU - Forbes, A AB - The investigation into Bessel beams has been a topic of immense research during the past 20 years, due to the interesting properties they display. Bessel beams not only exhibit diffraction free propagation, but also reconstruction of the amplitude and phase of the beam after encountering an obstruction. Although this self reconstruction property has been previously modelled by numerous groups, the techniques involve rigorous, time-consuming computations. In this work we present an efficient method to accurately calculate the reconstruction of a Bessel beam after an arbitrary obstruction. Our method considers the well-known conical wave features of Bessel beams and looks at the projection of the obstruction in space as a result of the travelling conical waves that produce the Bessel beams DA - 2008-08 DB - ResearchSpace DP - CSIR KW - Bessel-Gauss beams KW - Conical waves LK - https://researchspace.csir.co.za PY - 2008 SM - 0277-786X T1 - Propagation of obstructed Bessel and Bessel–Gauss beams TI - Propagation of obstructed Bessel and Bessel–Gauss beams UR - http://hdl.handle.net/10204/3345 ER -