Articles with "ultra compact" as a keyword



Ultra‐Compact Flexible Antenna Fabrication Using Novel P‐PTFE Material for 5G and 6G Communication Systems

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Published in 2025 at "Microwave and Optical Technology Letters"

DOI: 10.1002/mop.70451

Abstract: As demand for high‐speed data increases, 5G has become the leading technology in telecommunications. A key aspect of creating high‐capacity, low‐latency systems is the design of antennas. This paper introduces an antenna crafted from innovative… read more here.

Keywords: compact flexible; ultra compact; flexible antenna; material ... See more keywords
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Simulant designing of an ultra-compact AND, OR logical gates based on two-dimensional photonic crystal waveguides

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Published in 2018 at "Photonic Network Communications"

DOI: 10.1007/s11107-018-0785-5

Abstract: In this paper, we employed optical waveguides in a silicon rod base structure to realize AND, OR logical operation simultaneously based on two-dimensional photonic crystals. All of the structure is composed of silicon rods. Employing… read more here.

Keywords: ultra compact; based two; designing ultra; two dimensional ... See more keywords

High sensitivity and ultra compact fiber-optic microtip SPR thermometer coated with Ag/PDMS bilayer film

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Published in 2021 at "Optical Fiber Technology"

DOI: 10.1016/j.yofte.2021.102619

Abstract: Abstract In this paper, we report an ultra-compact reflective SPR microtip temperature probe, which can achieve 2-D spatial resolution of several microns. The pencil-shaped all-fiber microtip proposed by us is a SO2 cone-cylinder with a… read more here.

Keywords: ultra compact; microtip; sensitivity; film ... See more keywords

Numerical investigations of an ultra-compact polarization beam splitter based on augmented low-index guiding and subwavelength grating structures

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Published in 2018 at "Scientific Reports"

DOI: 10.1038/s41598-018-35841-2

Abstract: We report the design of an ultra-compact polarization beam splitter with high performance that is based on augmented low-index guiding and subwavelength grating (SWG) structures. The transverse-electric (TE) and transverse-magnetic (TM) modes are confined in… read more here.

Keywords: index; ultra compact; polarization beam; polarization ... See more keywords

Ultra-compact and efficient photonic waveguide bends with different configurations designed by topology optimization

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Published in 2024 at "Scientific Reports"

DOI: 10.1038/s41598-024-53881-9

Abstract: Transporting light signals over the corners and sharp bends imposes high optical loss and distortion on the mode profiles. Usually, bends with larger radii are used in circuits to minimize the loss over transmission, resulting… read more here.

Keywords: loss; ultra compact; optimized bends; topology ... See more keywords
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A top-down fabricated gold nanostrip on a silicon-on-insulator wafer: a promising building block towards ultra-compact optical devices.

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Published in 2021 at "Nanoscale"

DOI: 10.1039/d0nr06908f

Abstract: A plasmonic waveguide is a fundamental building block for high speed, large data transmission capacity, low energy consumption optical communication and sensing. Controllable fabrication and simultaneous optimization of propagation loss and coupling efficiency with free… read more here.

Keywords: silicon insulator; ultra compact; building block;

Ultra-compact visible light depolarizer based on dielectric metasurface.

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Published in 2020 at "Applied physics letters"

DOI: 10.1063/1.5133006

Abstract: With rapid development towards shrinking the size of traditional photonic systems such as cameras, spectrometers, displays and illumination systems, there is an urgent need for high performance and ultra-compact functional optical elements. The large footprint… read more here.

Keywords: based dielectric; ultra compact; dielectric metasurface; light ... See more keywords

Widely tunable short-wave mid-infrared hybrid lasers enabled by a single ultra-compact silicon microring resonator

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Published in 2025 at "Applied Physics Letters"

DOI: 10.1063/5.0275617

Abstract: Chip-scale widely tunable laser sources operating in the short-wave mid-infrared range (2–2.5 μm) have garnered significant interest for applications such as spectroscopic sensing, industrial gas detection, and biomarker measurement. However, conventional chip-scale designs rely on bulky… read more here.

Keywords: ultra compact; widely tunable; silicon; hybrid lasers ... See more keywords

Full-wave analysis and design of optical fractional-order temporal differentiators based on ultra-compact microring resonator

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Published in 2020 at "Journal of Modern Optics"

DOI: 10.1080/09500340.2020.1786179

Abstract: Optical temporal differentiators (DIFFs) based on on-chip all-pass microring resonators (APMRRs) are the fundamental all-optical signal processing blocks for differentiation of the complex envelope of optical pulses. This paper presents, for the first time to… read more here.

Keywords: order; ultra compact; temporal differentiators; full wave ... See more keywords

On the radial stability of ultra-compact Schwarzschild stars beyond the Buchdahl limit

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Published in 2019 at "Classical and Quantum Gravity"

DOI: 10.1088/1361-6382/ab0526

Abstract: In this paper we used the theory of adiabatic radial oscillations developed by Chandrasekhar to study the conditions for dynamical stability of constant energy-density stars, or Schwarzschild stars, in the unstudied ultra compact regime beyond… read more here.

Keywords: ultra compact; beyond buchdahl; buchdahl limit; schwarzschild stars ... See more keywords

Low SAR ultra compact UWB vivaldi non-uniform slot antennas for breast cancer detection

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Published in 2024 at "Physica Scripta"

DOI: 10.1088/1402-4896/ad9089

Abstract: Breast cancer is one of the growing issues among women. Current ultrawideband (UWB) antennas utilized for Microwave Imaging (MI) present several limitations, such as resolution and penetration trade-offs, large dimensions of the antennas degrade patient… read more here.

Keywords: ultra compact; vivaldi; breast cancer; slot ... See more keywords