Plasmonic metasurfaces are artificial 2-D sheets of plasmonic unit cells repeated in a subwavelength array, which give rise to unexpected wave properties that do not exist in nature. In the linear regime, their applications in wavefront manipulation for lensing, holography or polarization control have been intensively studied. However, applications in the nonlinear regime have been rarely reported. Considering the growing demand for saturable absorbers--a special class of nonlinear devices in wh...
Plasmonic metasurfaces are artificial 2-D sheets of plasmonic unit cells repeated in a subwavelength array, which give rise to unexpected wave properties that do not exist in nature. In the linear regime, their applications in wavefront manipulation for lensing, holography or polarization control have been intensively studied. However, applications in the nonlinear regime have been rarely reported. Considering the growing demand for saturable absorbers--a special class of nonlinear devices in wh...
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