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On-Chip Plasmonic Vortex Interferometers
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DOI：10.1002/lpor.202200242.png)
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Abstract
En 中文
Since the late 19(th) century, enormous endeavors have been made in extending the scope and capability of optical interferometers. Recently, plasmonic vortices that strongly confine the orbital angular momentum to surface have attracted considerable attention. However, current research interests in this area have focused on the mechanisms and dynamics of polarization-dependent single plasmonic vortex generation and evolution, while the interference between different plasmonic vortices for practical applications has been unexplored. Here, a method for flexible on-chip spin-to-orbital angular momentum conversion is introduced, resulting in exotic interferograms. Based on this method, a new form of interferometers that is realized by the interference between customized plasmonic vortices is demonstrated. Within wavelength-scale dimension, the proposed plasmonic vortex interferometers exhibit superior performance to directly measure the polarization state, spin and orbital angular momentum of incident beams. The proposed interferometry is straightforward and robust, and can be expected to be applied to different scenarios, fueling fundamental advances and applications alike.
Keywords:
on-chip interferometers
optical spin-orbit conversion
plasmonic vortices
polarimeters
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10
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3.7K
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Organization
Cited Papers
ShareSaveShareSaveSynthesis and Dynamic Switching of Surface Plasmon Vortices with Plasmonic Vortex Lens.png)
NANO LETTERS
NANO LETTERSIF9.1
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ShareSaveShareSaveDeep-subwavelength features of photonic skyrmions in a confined electromagnetic field with orbital angular momentumNATURE PHYSICS
NATURE PHYSICSIF18.4
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ShareSaveShareSaveControlling the plasmonic orbital angular momentum by combining the geometric and dynamic phasesNANOSCALE
OAAI
NANOSCALEIF5.1
OAAIShareSaveCompensation of spin-orbit interaction using the geometric phase of distributed nanoslits for polarization-independent plasmonic vortex generationOPTICS EXPRESS
OAAI
OPTICS EXPRESSIF3.3
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