THz photoconductive antennaMetal nanoparticlesSurface plasmonicIn this study, in order to amplify the radiation at Terahertz photoconductive antennas, metal nanoparticles are used in semiconductor layers based on plasmonic principles. The use of nanoparticles between antenna electrodes and semiconductor layers ...
Here, we push forward this concept by comprehensive numerical optimization and experimental investigation of a log-periodic THz photoconductive antenna coupled to a silver nanoantenna array. We shed light on the operation principles of the resulting hybrid THz antenna, providing an approach to boost ...
Introduction Fig. 1: Quantum-Probe Field Microscopy (QFIM). Full size image Results Fig. 2: Evolution of THz near-fields in a resonant bowtie antenna. Full size image Fig. 3: QFIM signal and near-field waveform inside a bowtie antenna. ...
Terahertz photoconductive antenna with metal nanoislands. Opt Express 2012;20: 25530–5.10.1364/OE.20.025530Search in Google Scholar PubMed [94] Yang Y, Singh R, Zhang W. Anomalous terahertz transmission in bow-tie plasmonic antenna apertures. Opt Lett 2011;36:2901–3.10.1364/OL.36.002901...
Context: The study of nanotechnology has shown great advances that include research and exploration in the TeraHertz (THz) region, where one of its most common approaches is the use of Photoconductive Antennas (PCA) due to the intrinsic properties of their emission and nature non-destructive of ...
we explain how Teraherz Radiation is used in different applications, how to produce Electromagnetic waves in the Teraherz frequency, and how to analyze them.Simulations in COMSOL Multiphysics are included as special case studies: A Photoconductive antenna, analysis of a waveguide coupling, and FEM ...
COMSOL MultiPhysicsCSTMicrolensPhotoconductiveThe spectrum of terahertz antenna was studied when the dielectric's covering dielectric as was changed in type, thickness or distance to electrodes. The surface wave theory was used to explain the physics of current pulse propagation in antenna electrodes, ...
The novel design of a terahertz large aperture photoconductive antenna (LAPCA) is reported. It features a longitudinal orientation of the bias electric field within the photoconductive substrate, and has the advantage of a small interelectrode gap, resulting in a higher field for the same applied ...
For direct excitation of the SSPP mode, the ‘port’ feature of COMSOL has been used. Four ports are declared among which two ports (port 1 and port 2) are associated with the aggressor interconnect and another two ports (port 3 and port 4) belong to the victim wire (Figure 2). The...
COMSOL MultiPhysicsCSTMicrolensPhotoconductiveThe spectrum of terahertz antenna was studied when the dielectric's covering dielectric as was changed in type, thickness or distance to electrodes. The surface wave theory was used to explain the physics of current pulse propagation in antenna electrodes, ...