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The 2D layered materials are promising candidates for broadband, low‐cost photodetectors. One deficiency of 2D materials is the relatively low absorbance of light, limiting the applications of the 2D photodetectors. Doping of plasmonic nanoparticles into 2D materials may enhance the optical absorbance owing to the localized surface plasmonic resonance (LSPR) effect; however, considerable defects may...
Surface modification of nonlinear optical materials (NOMs) is widely applied to fabricate diverse photonic devices, such as frequency combs, modulators, and all‐optical switches. In this work, a double‐layer nanostructure with heterogeneous nanoparticles (NPs) is proposed to achieve enhanced third‐order optical nonlinearity of NOMs. The mechanism of modified optical nonlinearity is elucidated to be...
By using sequential ion implantation, Feng Chen and co‐workers implement a three‐layer hierarchical nanostructure in LiNbO3 crystal with embedded plasmonic Cu and Ag nanoparticles in article number 2003172. Under excitation of a femtosecond laser, the ultrafast dynamic response of the nanostructure is tailored through the scattering mechanism at the interface between Cu and Ag nanoparticle layers...
Saturable absorbers are key elements for generation of ultrafast laser pulses. The commercially available semiconductor saturable absorber mirrors are wavelength sensitive and with complex fabrication process and high cost. Fused silica is one of the basic materials for various optical applications. Plasmonic nanoparticles can be used to efficiently modulate the optical properties of dielectric materials...
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