Enhanced Terahertz Radiation Generation of Photoconductive Antennas Based on Manganese Ferrite Nanoparticles
نویسندگان
چکیده
منابع مشابه
Enhanced Terahertz Radiation Generation of Photoconductive Antennas Based on Manganese Ferrite Nanoparticles
This paper presents a significant effect of manganese ferrite nanoparticles (MnFe2O4 NPs) on the increase of the surface photoconductivity of semiconductors. Herein, the optical characterization of photo-excited carriers of silicon coated with MnFe2O4 NPs was studied by using THz time-domain spectroscopy (THz-TDs). We observed that silicon coated with MnFe2O4 NPs provided a significantly enhanc...
متن کاملComputational modeling of plasmonic thin-film terahertz photoconductive antennas
This work presents a computational approach for investigating terahertz photoconductive antennas with enhanced performance via thin-film plasmonic electrode configurations. The commercially available finite element method solver COMSOL Multiphysics is implemented to solve Maxwell’s wave equations along with the coupled drift-diffusion/Poisson’s equations. The proposed approach is compared with ...
متن کاملUltrabroadband terahertz field detection by proton-bombarded InP photoconductive antennas.
Photoconductive (PC) antennas fabricated on InP bombarded with 180 keV protons of different dosages (InP:H+) all exhibit a useful bandwidth of about 30 THz, comparable to that of the LT-GaAs PC antenna. The peak signal current of the best InP: H+ device (dosage of 10;15 ions/cm;2) is slightly higher than that of the LT-GaAs one, while the signal-to-noise ratio (SNR) of the former is about half ...
متن کاملPhotoconductive terahertz generation from textured semiconductor materials
Photoconductive (PC) terahertz (THz) emitters are often limited by ohmic loss and Joule heating-as these effects can lead to thermal runaway and premature device breakdown. To address this, the proposed work introduces PC THz emitters based on textured InP materials. The enhanced surface recombination and decreased charge-carrier lifetimes of the textured InP materials reduce residual photocurr...
متن کاملTerahertz near-field microscopy with subwavelength spatial resolution based on photoconductive antennas.
Imaging and sensing applications based on pulsed terahertz radiation have opened new possibilities for scientific and industrial applications. Many exploit the unique features of the terahertz (THz) spectral region, where common packaging materials are transparent and many chemical compounds show characteristic absorptions. Because of their diffraction limit, THz far-field imaging techniques la...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Scientific Reports
سال: 2017
ISSN: 2045-2322
DOI: 10.1038/srep46261