Replicable Quasi-Three-Dimensional Plasmonic Nanoantennas for Infrared Bandpass Filtering

Abstract

Quasi-three-dimensionally designed metal–dielectric hybrid nanoantennas have provided a unique capability to control light at the nanoscale beyond the diffraction limit, which has enabled powerful optical manipulation techniques. However, the fabrication of these nanoantennas has largely relied on the use of nanolithography techniques that are time- and cost-consuming, impeding their application in wide-ranging use. Herein, we report a versatile methodology enabling the repetitive replication of these nanoantennas from their silicon molds with tailored optical features for infrared bandpass filtering. Comprehensive experimental and computational analyses revealed the underlying mechanism of this methodology and also provided a technical guideline for pragmatic translation into infrared filters in multispectral imaging.

Electron-beam writing of a relaxor ferroelectric polymer for multiplexing information storage and encryption

“…[13][14][15][16] Several efforts have been devoted to patterning ferroelectric polymer nanostructures using highresolution and well-defined anodic aluminum oxide (AAO) molds 17,18 or a hundred-nanometer-level silicon mold. 19,20 Nanoconfined crystallization in the mold is conducive for the formation of one-type orientation domains, thus showing excellent data storage behavior for single-dimensional FeRAM. 21,22 All the physical modification methods, such as nanoconfined crystallization, 23 graphene-induced method 24 and blending, are difficult to arbitrarily tailor the size and orientation of the ferroelectric domains in the micro/nano-processing technology.…”

Simulational investigation of self-aligned bilayer linear grating enabling highly enhanced responsivity of MWIR InAs/GaSb type-II superlattice (T2SL) photodetector

“…The simulational result with MWIR InAs/GaSb T2SL photodetector also validates that the SABLG produces a pronouncedly improved TM–spectral responsivity and extinction ratio, assessed through TM- and TE-polarizations. The InAs/GaSb T2SL and SABLG structures could be manufactured using nanoassembly that circumvents undesirable fabrication issues (i.e., misalignments and cracks) in refs 27 , 28 .…”

Magnetoplasmonic Nanoantennas for On-Chip Reconfigurable Optical Wireless Communications

“…The radiation properties of plasmonic nanoparticles , have been exploited to replace conventional nanoelectronic interconnects that can be lossy and with narrow bandwidth for chip-scale communications. , Examples are the high-performance optical wireless nanolinks and highly directive nanoantenna designs, , which can be excited by integrated optical and electrical mechanisms. − Wireless broadcasting is nevertheless limited to point-to-point communication, that is, a fixed transmitting nanoantenna with a fixed receiving nanoantenna. There has been a numerical demonstration of electrically tunable beam steering, but only with an array of antenna elements.…”

“…The radiation properties of plasmonic nanoparticles 1,2 have been exploited to replace conventional nanoelectronic interconnects that can be lossy and with narrow bandwidth for chip-scale communications. 3,4 Examples are the highperformance optical wireless nanolinks 5 and highly directive nanoantenna designs, 6,7 which can be excited by integrated optical and electrical mechanisms.…”