Photodetectors of 2D Materials from Ultraviolet to Terahertz Waves.
Sign Up to like & getrecommendations! Published in 2021 at "Advanced materials"
DOI: 10.1002/adma.202008126
Abstract: 2D materials are considered to be the most promising materials for photodetectors due to their unique optical and electrical properties. Since the discovery of graphene, many photodetectors based on 2D materials have been reported. However,… read more here.
Keywords: photodetectors materials; materials ultraviolet; ultraviolet terahertz; terahertz waves ... See more keywords
Frequency‐Agile Temporal Terahertz Metamaterials
Sign Up to like & getrecommendations! Published in 2020 at "Advanced Optical Materials"
DOI: 10.1002/adom.202000101
Abstract: DOI: 10.1002/adom.202000101 through most material systems. These unique properties of terahertz waves have been exploited for both fundamental sciences and advanced applications, alike. However, these properties have also been a bane and has significantly hindered… read more here.
Keywords: terahertz waves; frequency; temporal terahertz; agile temporal ... See more keywords
A Nondestructive Eggshell Thickness Measurement Technique Using Terahertz Waves
Sign Up to like & getrecommendations! Published in 2020 at "Scientific Reports"
DOI: 10.1038/s41598-020-57774-5
Abstract: Eggshells play a number of important roles in the avian and reptile kingdom: protection of internal contents and as a major source of minerals for developing embryos. However, when researching these respective roles, eggshell thickness… read more here.
Keywords: thickness measurement; eggshell thickness; eggshell; avian reptile ... See more keywords
Superfocusing plate of terahertz waves based on a gradient refractive index metasurface
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Applied Physics"
DOI: 10.1063/1.5050696
Abstract: A new scenario to realize superfocusing of terahertz waves based on a gradient index (GRIN) metasurface is proposed. To design the GRIN material, a robust algorithm is presented and numerically demonstrated to retrieve the constitutive… read more here.
Keywords: waves based; based gradient; metasurface; terahertz waves ... See more keywords
Noncollinear electro-optic detection of terahertz waves: Advantages and limitations
Sign Up to like & getrecommendations! Published in 2024 at "Journal of Applied Physics"
DOI: 10.1063/5.0206493
Abstract: Electro-optic sampling of terahertz waves by noncollinearly propagating femtosecond laser pulses in electro-optic crystals can provide high efficiency and high spectral resolution of terahertz detection with various types of crystals and laser wavelengths, unlike the… read more here.
Keywords: detection; laser; terahertz; noncollinear electro ... See more keywords
Terahertz waves propagation in an inhomogeneous plasma layer using the improved scattering-matrix method
Sign Up to like & getrecommendations! Published in 2020 at "Waves in Random and Complex Media"
DOI: 10.1080/17455030.2020.1757177
Abstract: ABSTRACT The interaction between electromagnetic (EM) waves and plasma has been extensively investigated by the scattering-matrix method (SMM), but this method encounters the singularity problem, which is a numerical issue when the plasma density is… read more here.
Keywords: waves propagation; matrix method; method; plasma ... See more keywords
Efficient manipulation of terahertz waves by multi-bit coding metasurfaces and further applications of such metasurfaces
Sign Up to like & getrecommendations! Published in 2021 at "Chinese Physics B"
DOI: 10.1088/1674-1056/abd6fc
Abstract: Benefiting from the unprecedented superiority of coding metasurfaces at manipulating electromagnetic waves in the microwave band, in this paper, we use the Pancharatnam-Berry (PB) phase concept to propose a high-efficiency reflective-type coding metasurface that can… read more here.
Keywords: manipulation terahertz; bit coding; coding metasurfaces; terahertz waves ... See more keywords
Thermally sensitive scattering of terahertz waves by coated cylinders for tunable invisibility and masking.
Sign Up to like & getrecommendations! Published in 2018 at "Optics express"
DOI: 10.1364/oe.26.000001
Abstract: Temperature-sensitive scattering of terahertz (THz) waves by infinitely long, cylindrical core-shell structures was theoretically studied. Each structure is a dielectric cylinder coated with an InSb shell illuminated by either a transverse-electric (TE) or a transverse-magnetic… read more here.
Keywords: thermally sensitive; terahertz waves; scattering terahertz; sensitive scattering ... See more keywords
Nonellipsometric electro-optic sampling of terahertz waves in GaAs.
Sign Up to like & getrecommendations! Published in 2018 at "Optics express"
DOI: 10.1364/oe.26.023359
Abstract: We report efficient high-resolution electro-optic sampling detection of broadband terahertz radiation by measuring direct intensity modulation of a femtosecond fiber laser beam induced by terahertz field in a 1-cm thick GaAs crystal. read more here.
Keywords: terahertz waves; nonellipsometric electro; electro optic; optic sampling ... See more keywords
Short bends using curved mirrors in silicon waveguides for terahertz waves.
Sign Up to like & getrecommendations! Published in 2022 at "Optics express"
DOI: 10.1364/oe.447268
Abstract: Dielectric waveguides are capable of confining and guiding terahertz waves along sub-wavelength sized structures. A small feature size allows for a denser integration of different photonic components such as modulators, beam-splitters, wavelength (de)multiplexers and more.… read more here.
Keywords: mirrors silicon; bends using; short bends; terahertz waves ... See more keywords
Propagation modeling and characteristic analysis of terahertz waves via high altitude platforms
Sign Up to like & getrecommendations! Published in 2024 at "China Communications"
DOI: 10.23919/jcc.ea.2022-0396.202401
Abstract: Satellite-to-ground terahertz communication is limited by the power of signal source and antenna gain level, and has large path loss, which is difficult to implement. In this paper, a feasible scheme of satellite-to-ground terahertz communication… read more here.
Keywords: terahertz; high altitude; terahertz waves; ground ... See more keywords