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10.3390/s22010132 http://scihub22266oqcxt.onion/10.3390/s22010132 35009674!8747713!35009674     free     free     free Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534       Sensors+(Basel) 2021 ; 22 (1): ä Nephropedia Template TP {{tp|p=35009674|t=2021. Shack-Hartmann Wavefront Sensing of Ultrashort Optical Vortices |pdf=|usr=}}{{35009674}} gab.com Text Shack-Hartmann Wavefront Sensing of Ultrashort Optical Vortices JO: Sensors (Basel) http://www.kidney.de/pget.php?&tw=1&pmid=35009674 #FOAvip Light beams carrying Orbital Angular Momentum (OAM), also known as optical vortices (OV), have led to fascinating new developments in fields ranging from quantum communication to novel light-matter interaction aspects. Even though several techniques have emerged to synthesize these structured-beams, their detection, in particular, single-shot amplitude, wavefront, and modal content characterization, remains a challenging task. Here, we report the single-shot amplitude, wavefront, and modal content characterization of ultrashort OV using a Shack-Hartmann wavefront sensor. These vortex beams are obtained using spiral phase plates (SPPs) that are frequently used for high-intensity applications. The reconstructed wavefronts display a helical structure compatible with the topological charge induced by the SPPs. We affirm the accuracy of the optical field reconstruction by the wavefront sensor through an excellent agreement between the numerically backpropagated and experimentally obtained intensity distribution at the waist. Consequently, through Laguerre-Gauss (LG) decomposition of the reconstructed fields, we reveal the radial and azimuthal mode composition of vortex beams under different conditions. The potential of our method is further illustrated by characterizing asymmetric Gaussian vortices carrying fractional average OAM, and a realtime topological charge measurement at a 10Hz repetition rate. These results can promote Shack-Hartmann wavefront sensing as a single-shot OV characterization tool. Twit Text FOAVip Shack-Hartmann Wavefront Sensing of Ultrashort Optical Vortices ????Sensors (Basel) http://www.kidney.de/pget.php?&tw=1&pmid=35009674 #FOAvip Twit Text # Free Paper on # # # # # LINK http://www.kidney.de/pget.php?&tw=1&pmid=35009674 #FOAvip English Wikipedia <ref>{{Cite pmid|35009674}}</ref> Shack-Hartmann Wavefront Sensing of Ultrashort Optical Vortices #MMPMID35009674 Pandey AK; Larrieu T; Dovillaire G; Kazamias S; Guilbaud O Sensors (Basel) 2021[Dec]; 22 (1): ä PMID35009674show ga Light beams carrying Orbital Angular Momentum (OAM), also known as optical vortices (OV), have led to fascinating new developments in fields ranging from quantum communication to novel light-matter interaction aspects. Even though several techniques have emerged to synthesize these structured-beams, their detection, in particular, single-shot amplitude, wavefront, and modal content characterization, remains a challenging task. Here, we report the single-shot amplitude, wavefront, and modal content characterization of ultrashort OV using a Shack-Hartmann wavefront sensor. These vortex beams are obtained using spiral phase plates (SPPs) that are frequently used for high-intensity applications. The reconstructed wavefronts display a helical structure compatible with the topological charge induced by the SPPs. We affirm the accuracy of the optical field reconstruction by the wavefront sensor through an excellent agreement between the numerically backpropagated and experimentally obtained intensity distribution at the waist. Consequently, through Laguerre-Gauss (LG) decomposition of the reconstructed fields, we reveal the radial and azimuthal mode composition of vortex beams under different conditions. The potential of our method is further illustrated by characterizing asymmetric Gaussian vortices carrying fractional average OAM, and a realtime topological charge measurement at a 10Hz repetition rate. These results can promote Shack-Hartmann wavefront sensing as a single-shot OV characterization tool. äShack-Hartmann Wavefront Sensing of Ultrashort Optical Vortices (epmc).pdf DeepDyve Pubget Overpricing