Journal
OPTICA
Volume 10, Issue 1, Pages 26-32Publisher
Optica Publishing Group
DOI: 10.1364/OPTICA.471040
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Research has found that the polarization state of light is crucial in revealing intrinsic chiral or anisotropic optical response in various material systems, and is important for applications requiring complex polarization encoding. By leveraging the nanoscale multidimensional control of light offered by metasurfaces, we can engineer the temporal evolution of the instantaneous polarization state of a femtosecond pulse through parallel manipulation of its constituent spectral components across an ultrawide bandwidth. We expect this control over the synthesis of complex vectorially shaped pulses to further elucidate ultrafast chiral light-matter interactions.
Coherent light-matter interactions on the femtosecond time scale form the backbone of ultrafast science and technology, where the instantaneous state of light is used to control and detect the interaction of light with matter. Here, the polarization state of light has proven pivotal in unveiling intrinsic chiral or anisotropic optical response in various material systems, and it is critical for applications requiring complex polarization encoding including in spectroscopy, telecommunications, and coherent control. While wave plates in various forms play a crucial role in shaping the landscape of polarization management, engineering the instantaneous state of polarization within an ultrafast pulse for an arbitrary input-polarization remains challenging. Here, by leveraging the nanoscale multidimensional control of light offered by metasurfaces, we engineer the temporal evolution of the instantaneous polarization state of a femtosecond pulse through parallel manipulation of its constituent spectral components across an ultrawide bandwidth. We expect such control over the synthesis of complex vectorially shaped pulses to further elucidate ultrafast chiral light-matter interactions. (c) 2023 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement
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