【摘 要】
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Optical orbital angular momentum (OAM) is a special property of photons and has evoked research onto the light-matter interaction in both classical and quantum
【机 构】
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Key Laboratory of Weak-Light Nonlinear Photonics and School of Physics, Nankai University, Tianjin 3
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Optical orbital angular momentum (OAM) is a special property of photons and has evoked research onto the light-matter interaction in both classical and quantum regimes.In classical optics,OAM is related to an optical vortex with a helical phase structure.In quantum optics,photons with a twisted or helical phase structure will carry a quantized OAM.To our knowledge,however,so far,no experiment has demonstrated the fundamental property of the OAM at the single-photon level.In this Letter,we have demonstrated the average photon trajectories of twisted photons in a double-slit interference.We have experimentally captured the double-slit interference process of twisted photons by a time-gated intensified charge-coupled device camera,which is trigged by a heralded detection.Our work provides new perspectives for understanding the micro-behaviors of twisted particles and enables new applications in imaging and sensing.
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