Shaghik Atakaramians
University of New South Wales
Polarization (waves)Terahertz radiationMetamaterialOpticsPhysicsDielectricDipoleDispersion (optics)Materials scienceOptical fiberWaveguideRefractive indexOptoelectronicsBroadbandFiberCladding (fiber optics)WavelengthPorosityPhotonic crystalTerahertz spectroscopy and technology
81Publications
13H-index
1,141Citations
Publications 80
Newest
#1Muhammad Talal Ali Khan (UNSW: University of New South Wales)H-Index: 4
#2Haisu LiH-Index: 12
Last. Shaghik AtakaramiansH-Index: 13
view all 5 authors...
The recent development of the terahertz waveguide makes it an excellent platform for integrating many intriguing functionalities, which offers tremendous potential to build compact and robust terahertz systems. In the context of next-generation high-speed communication links at the terahertz band, engineering the dispersion and birefringence of terahertz waves is essential. Here, we experimentally demonstrate subwavelength birefringent waveguide gratings based on the low-loss cyclic olefin copol...
#1Muhammad Talal Ali Khan (UNSW: University of New South Wales)H-Index: 4
#2Haisu Li (Beijing Jiaotong University)H-Index: 12
Last. Shaghik Atakaramians (UNSW: University of New South Wales)H-Index: 13
view all 5 authors...
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#1Michael J. Christoe (UNSW: University of New South Wales)H-Index: 6
#2Natthaporn Phaoseree (UNSW: University of New South Wales)
Last. Kourosh Kalantar-zadeh (UNSW: University of New South Wales)H-Index: 96
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A number of design challenges are associated with in-body devices, especially ingestible capsules, including selection of operation frequency and antenna design. Operation frequency, miniaturization, gain, and interference with the environment and the internal components of ingestible capsules are all challenging factors. In this work, we design and measure the performance of miniature antennas that can be included in ingestible capsules. The meandering pattern designs are implemented with a 433...
1 CitationsSource
#2V Shahraam Afshar (UniSA: University of South Australia)H-Index: 3
Last. Shaghik AtakaramiansH-Index: 13
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We experimentally demonstrate a single-layer terahertz dielectric metasurface. The metasurface consists of an array of sub-wavelength fibers. It is shown that this single-layer terahertz metasurface has high transmission window and can also behave like a terahertz magnetic or electric mirror due to the excitation of resonances in the fibers. It is also observed that changing the excitation angle ( \phi >5^{\circ })leads to appearance of new resonances, which narrows and widens the transmissio...
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#2Haisu LiH-Index: 12
Last. Shaghik AtakaramiansH-Index: 13
view all 5 authors...
Compact and robust waveguide chips are crucial for new integrated terahertz applications, such as high-speed interconnections between processors and broadband short-range wireless communications. Progress on topological photonic crystals shows potential to improve integrated terahertz systems that suffer from high losses around sharp bends. Robust terahertz topological transport through sharp bends on a silicon chip has been recently reported over a relatively narrow bandwidth. Here, we report t...
#1M. Shastri (UNSW: University of New South Wales)
#2P. Macharla (UNSW: University of New South Wales)
Last. Shaghik Atakaramians (UNSW: University of New South Wales)H-Index: 13
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Early detection of seeds, as a precursor tool for the prevention of Grass Seed Infestation, is analysed. It is demonstrated that terahertz time-domain spectroscopy and imaging techniques can be utilized to identify seeds in sheep-wool. © 2019
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#1Qigejian Wang (UNSW: University of New South Wales)
#2V Shahraam Afshar (UNISA: University of South Africa)H-Index: 3
Last. Shaghik Atakaramians (UNSW: University of New South Wales)H-Index: 13
view all 3 authors...
We experimentally demonstrate a single-layered fiber terahertz meta-lattice that can act as terahertz magnetic and electric mirrors. The ability to control THz radiation with meta-lattice may find use in THz beam forming applications.
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#1Muhammad Talal Ali Khan (UNSW: University of New South Wales)H-Index: 4
#2Haisu Li (UNSW: University of New South Wales)H-Index: 12
Last. Shaghik Atakaramians (UNSW: University of New South Wales)H-Index: 13
view all 5 authors...
We demonstrate an all-metallic terahertz topological waveguide using cost-effective 3D printing technique. The experimental results indicate guiding of the mode within the topological band gap in the bianisotropic medium while no transmission in gapless state.
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#1Haisu Li (Beijing Jiaotong University)H-Index: 12
#2Mei Xian Low (RMIT: RMIT University)H-Index: 5
Last. Shaghik Atakaramians (UNSW: University of New South Wales)H-Index: 13
view all 8 authors...
We present an experimental demonstration of hybrid terahertz waveguide chips for terahertz integration, which support a single-mode, low-loss and low-dispersion bandwidth over 0.367-0.411 THz. Waveguide bends can also be integrated inside the chip.
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#1Haisu Li (Beijing Jiaotong University)H-Index: 12
#2Mei Xian Low (RMIT: RMIT University)H-Index: 5
Last. Shaghik Atakaramians (UNSW: University of New South Wales)H-Index: 13
view all 8 authors...
A novel terahertz hybrid waveguide chip consisting of silicon photonic crystals sandwiched in parallel gold plates is developed. Both simulation and experimental results demonstrate that the hybrid waveguide offers a wide single-mode transmission window with low group velocity dispersion and low loss. This compact, substrate-free terahertz chip would play a significant role in broadband, dense-integrated, multi-functional terahertz systems.
6 CitationsSource