Belyi, VNKhilo, NAKazak, NSRyzhevich, AAForbes, A2011-10-052011-10-052011-05Belyi, VN, Khilo, NA, Kazak, NS et al. 2011. Propagation of high-order circularly polarized Bessel beams and vortex generation in uniaxial crystals. Optical Engineering, Vol 50(5), pp 0590010091-3286http://spiedigitallibrary.org/oe/resource/1/opegar/v50/i5/p059001_s1http://hdl.handle.net/10204/5195Copyright: 2011 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 prohibited.The authors investigate the generation and transformation of Bessel beams through linear and nonlinear optical crystals. They outline the generation of high-order vortices due to propagation of Bessel beams along the optical axis of uniaxial crystals and expand this to the nonlinear regime by outlining a new phase-matching process (full conical phase matching) in second harmonic generation of vector Bessel beams for various symmetries in uniaxial crystals. They demonstrate the principles experimentally in a uniaxial BBO crystal and find excellent agreement between the experimental and theoretical results. The results imply a coupling of the intrinsic and extrinsic optical angular momentum of the resulting fields, which may have importance in studies involving quantum entanglement of the angular momentum basis of light.enBessel beamsOptical vorticesUniaxial crystalsSecond harmonic generationOptical engineeringArticleBelyi, V., Khilo, N., Kazak, N., Ryzhevich, A., & Forbes, A. (2011). Propagation of high-order circularly polarized Bessel beams and vortex generation in uniaxial crystals. http://hdl.handle.net/10204/5195Belyi, VN, NA Khilo, NS Kazak, AA Ryzhevich, and A Forbes "Propagation of high-order circularly polarized Bessel beams and vortex generation in uniaxial crystals." (2011) http://hdl.handle.net/10204/5195Belyi V, Khilo N, Kazak N, Ryzhevich A, Forbes A. Propagation of high-order circularly polarized Bessel beams and vortex generation in uniaxial crystals. 2011; http://hdl.handle.net/10204/5195.TY - Article AU - Belyi, VN AU - Khilo, NA AU - Kazak, NS AU - Ryzhevich, AA AU - Forbes, A AB - The authors investigate the generation and transformation of Bessel beams through linear and nonlinear optical crystals. They outline the generation of high-order vortices due to propagation of Bessel beams along the optical axis of uniaxial crystals and expand this to the nonlinear regime by outlining a new phase-matching process (full conical phase matching) in second harmonic generation of vector Bessel beams for various symmetries in uniaxial crystals. They demonstrate the principles experimentally in a uniaxial BBO crystal and find excellent agreement between the experimental and theoretical results. The results imply a coupling of the intrinsic and extrinsic optical angular momentum of the resulting fields, which may have importance in studies involving quantum entanglement of the angular momentum basis of light. DA - 2011-05 DB - ResearchSpace DP - CSIR KW - Bessel beams KW - Optical vortices KW - Uniaxial crystals KW - Second harmonic generation KW - Optical engineering LK - https://researchspace.csir.co.za PY - 2011 SM - 0091-3286 T1 - Propagation of high-order circularly polarized Bessel beams and vortex generation in uniaxial crystals TI - Propagation of high-order circularly polarized Bessel beams and vortex generation in uniaxial crystals UR - http://hdl.handle.net/10204/5195 ER -