Search Results - "Nallappan, Kathirvel"
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Add drop multiplexers for terahertz communications using two-wire waveguide-based plasmonic circuits
Published in Nature communications (14-07-2022)“…Terahertz (THz) band is considered to be the next frontier in wireless communications. The emerging THz multiplexing techniques are expected to dramatically…”
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2
Infinity additive manufacturing of continuous microstructured fiber links for THz communications
Published in Scientific reports (16-03-2022)“…In this work, a novel infinity 3D printing technique is explored to fabricate continuous few-meter-long low-loss near-zero dispersion suspended-core…”
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3
Resonant Gas Sensing in the Terahertz Spectral Range Using Two-Wire Phase-Shifted Waveguide Bragg Gratings
Published in Sensors (Basel, Switzerland) (17-10-2023)“…The development of low-cost sensing devices with high compactness, flexibility, and robustness is of significance for practical applications of optical gas…”
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4
Live Streaming of Uncompressed HD and 4K Videos Using Terahertz Wireless Links
Published in IEEE access (2018)“…Taming the Terahertz waves (100 GHz-10 THz) is considered the next frontier in wireless communications. While components for the ultra-high bandwidth Terahertz…”
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5
Fabrication and Characterization of an 8 × 8 Terahertz Photoconductive Antenna Array for Spatially Resolved Time Domain Spectroscopy and Imaging Applications
Published in IEEE access (2021)“…Terahertz (THz) technology is promising in several applications such as imaging, spectroscopy and communications. Among several methods in the generation and…”
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6
Photonics based frequency hopping spread spectrum system for secure terahertz communications
Published in Optics express (18-07-2022)“…Terahertz (THz) spectrum (100 GHz-10 THz) is considered the next frontier in the design of high-speed wireless communication systems. While the high-power THz…”
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7
3D printed hollow core terahertz Bragg waveguides with defect layers for surface sensing applications
Published in Optics express (20-02-2017)“…We study a 3D-printed hollow core terahertz (THz) Bragg waveguide for resonant surface sensing applications. We demonstrate theoretically and confirm…”
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8
Optimization of hollow-core photonic Bragg fibers towards practical sensing implementations
Published in Optical materials express (01-04-2019)“…Hollow-core photonic bandgap Bragg fibers have a wide range of industrial sensing applications. Spectral scalability of the transmission window and detection…”
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Additive manufacturing of resonant fluidic sensors based on photonic bandgap waveguides for terahertz applications
Published in Optics express (30-09-2019)Get full text
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10
Exploiting k-space/frequency duality toward real-time terahertz imaging
Published in Optica (20-02-2018)Get full text
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11
Comparison of Wired and Wireless Channel for Short Range Frequency Hopping Terahertz System
Published in 2021 IEEE Photonics Society Summer Topicals Meeting Series (SUM) (01-07-2021)“…We present the design of a wired terahertz communication link in a short range (1.5 m) frequency hopping system for secure communication applications. The…”
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Conference Proceeding -
12
Additive manufacturing of highly reconfigurable plasmonic circuits for terahertz communications
Published in Optica (20-09-2020)“…While in most existing terahertz communications systems, the THz carrier wave is transmitted via free-space channels, the THz waveguide-based integrated…”
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13
Super-Resolution Orthogonal Deterministic Imaging Technique for Terahertz Subwavelength Microscopy
Published in ACS photonics (15-07-2020)“…Terahertz subwavelength imaging aims at developing THz microscopes able to resolve deeply subwavelength features. To beat the diffraction limit, the current…”
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14
Fabrication and characterization of a composite TiO2-polypropylene high-refractive-index solid immersion lens for super-resolution THz imaging
Published in Optical materials express (01-08-2022)“…Terahertz (THz) near-field imaging is attracting a lot of attention for its potential applications in medical diagnosis and material characterization. However,…”
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15
Fabrication and characterization of a composite TiO 2 -polypropylene high-refractive-index solid immersion lens for super-resolution THz imaging
Published in Optical materials express (01-08-2022)“…Terahertz (THz) near-field imaging is attracting a lot of attention for its potential applications in medical diagnosis and material characterization. However,…”
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16
Planar Porous Components for Low‐Loss Terahertz Optics
Published in Advanced optical materials (01-08-2019)“…There is a strong interest in using the terahertz (THz) frequency band for applications in sensing, imaging, and wireless communications. To enable many of…”
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17
Continuous Fabrication of Microstructured Waveguides for THz Communications Using Infinite 3D Printing
Published in 2021 IEEE Photonics Society Summer Topicals Meeting Series (SUM) (01-07-2021)“…A micro-structured suspended-core waveguide is designed for information transmission at 128 GHz carrier frequency. It is 3D printed using a 45° inclined…”
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Conference Proceeding -
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Additive manufacturing of reconfigurable two-wire plasmonic circuits for terahertz communications
Published in 2021 IEEE Photonics Society Summer Topicals Meeting Series (SUM) (01-07-2021)“…The terahertz communication is an enabling technology for the next-generation communication networks, where the waveguide-based integrated solutions are of…”
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Conference Proceeding -
19
Terahertz Spectroscopy and Solid-State Density Functional Theory Calculations of Cyanobenzaldehyde Isomers
Published in The journal of physical chemistry. A, Molecules, spectroscopy, kinetics, environment, & general theory (23-07-2015)“…Spectral signatures in the terahertz (THz) frequency region are mainly due to bulk vibrations of the molecules. These resonances are highly sensitive to the…”
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20
Fabrication and Characterization of High Permittivity Solid Immersion Lenses for Terahertz Microscopy Applications
Published in 2022 IEEE Photonics Society Summer Topicals Meeting Series (SUM) (01-07-2022)“…THz microscopy is attracting a lot of attention due to its potential applications in medicine, semi-conductor analysis, etc. In this work, we present the…”
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Conference Proceeding