Ultra-dense planar metallic nanowire arrays with extremely large anisotropic optical and magnetic properties

Large-scale self-organized gold nanostructures with bidirectional plasmon resonances for SERS

“…This SERS signal enhancement is comparatively high for a large-scale self-organized gold lms reported in literature. 4,[23][24][25][26] Finite element method calculations showed the polarization and wavelength dependent hotspot distributions of gold nanoparticle systems for well-ordered annealed particle lms and less well-shaped gold particles deposited at room temperature are observed. The biocompatible and chemically stable gold nanostructures here reported support strong plasmonic signal enhancement for multiple excitation wavelengths.…”

“…In comparison to similar self-assembled gold nanostructures our reported SERS EFs are higher or comparable. 4,[23][24][25][26] Further, since we can measure and compare the SERS EFs on different substrates, we can directly connect spectroscopic measurements with the Raman eld enhancement factors to probe the plasmonic effects on the substrate. Table 2 summarizes the values for h3 2 i and SERS enhancement for 632.8 nm excitation wavelength.…”

“…[15][16][17][18][19] The substrates are ideal for the selforganization of plasmonic nanostructures with strong anisotropic optical properties. [20][21][22] The polarization-dependent SERS response of such structures was reported for parallel gold nanowires (NWs) [23][24][25][26] and silver nanoparticle (NP) chains. 27,28 For gold NWs, the SERS enhancement is dominant across the ripple pattern.…”

Self‐Assembled, 10 nm‐Tailored, Near Infrared Plasmonic Metasurface Acting as Broadband Omnidirectional Polarizing Mirror

“…Therefore, the results shown hereafter make this work go well beyond the state of the art represented by refs. [39][40][41][42][43][44][45][46][47][48][49][50][51][52][53][54][55].…”

Realization of wafer-scale nanogratings with sub-50 nm period through vacancy epitaxy

“…One-dimensional periodic nanostructures (nanogratings) are one of the most fundamental devices and have been widely applied in electronic, optical, magnetic, and biological applications 11–17 . One notable application is the diffraction grating in spectrometer, where the grating period determines the angular dispersion and resolution of the system.…”