Separation of chiral enantiomers by optical force and torque induced by tightly focused vector polarized hollow beams
Literature Information
Xingguang Liu, Junqing Li, Qiang Zhang, Mamo Gebeyehu Dirbeba
Enantioseparation is important for biology, chemistry and even pharmaceutical industries. We propose an approach for discriminating and separating chiral enantiomers by tightly focused vector polarized hollow beams, which possess a transverse spin angular momentum that can rotate the chiral particles along the transverse direction. We demonstrate the different optomechanical behaviours of the particles upon illumination with different vector polarized (azimuthally and radially) hollow beams by numerically calculating the optical force and spin torque. It is believed that this interesting approach may have potential applications in enantioseparation due to its simplicity and accessibility.
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Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.











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