Results 61 to 70 of about 1,054,851 (293)
Scientific Reports, 2017 AbstractWhen space (time) translation symmetry is spontaneously broken, the space crystal (time crystal) forms; when permittivity and permeability periodically vary with space (time), the photonic crystal (photonic time crystal) forms. We proposed the concept of photonic time crystal and rewritten the Maxwell’s equations.
Zeng, Lunwu +6 more
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Design and fabrication techniques for a mid-infrared photonic crystal defect cavity in indium antimonide [PDF]
, 2009 Simulation results and fabrication details are presented for a two-dimensional AlxGayIn1-x-ySb photonic crystal membrane defect cavity. Peak emission is predicted at λ = 3.372 with a Q factor of 26233 for an optimized membrane thickness of 1000 nm ...
Rarity, John +26 more
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Advanced Functional Materials, EarlyView.A new class of sulfur‐free, oxygen‐bridged dibenzofuran‐based polymers is developed for ultrahigh‐refractive‐index applications. The rigid π‐extended architecture and enhanced molecular polarizability enable exceptional optical performance, combining refractive indices up to 1.848 with high Abbe numbers and full visible transparency. This work offers a
Hend A. Hegazy +5 more
wiley +1 more source
Topology optimization of a 120° bending high temperature superconducting photonic crystal waveguide
Results in PhysicsThe two-dimensional high-temperature superconducting photonic crystal structure has been widely studied as a novel type of photonic crystal structure.
Fei Wang +7 more
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Advanced Functional Materials, EarlyView.The physical realization of artificial neurons is a critical challenge for energy‐efficient neuromorphic computing. This review presents a comprehensive analysis of the evolution of artificial neuron implementations from conventional CMOS to emerging post‐CMOS technologies.
Kannan Udaya Mohanan +4 more
wiley +1 more source
Two-photon laser scanning fluorescence microscopy using photonic crystal fibre [PDF]
, 2004 We report the application of a simple yet powerful modular pulse compression system, based on photonic crystal fibres which improves upon incumbent twophoton laser scanning fluorescence microscopy techniques.
McConnell, G., Riis, E.
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IEEE Photonics Journal, 2020 Intense light-matter interaction is critical for enabling high-sensitivity refractive index sensors, high-efficiency light sources, and high-performance nonlinear devices.
Yameng Xu, Shubo Hu, Mei Kong
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Optics Express, 2010 We theoretically study a 1D elastic photonic crystal containing air voids as an opto-pneumatic medium. This medium is sensitive to weak deviations of the external pressure and, owing to its elasticity, can vary its geometry depending on the external conditions.
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High‐Speed Photoresponse of CVD‐Grown Lateral TMD Heterostructures
Advanced Functional Materials, EarlyView.Internal electric fields generated by p‐n junctions and asymmetric Schottky barriers enhance the photoresponse speed in CVD‐grown monolayer TMD lateral heterostructures. This results in a 1.5‐2 orders of magnitude reduction in rise and fall times for optimized device configurations compared to homogeneous single‐material devices, enabling bandwidths ...
Mario Martin +9 more
wiley +1 more source
Hybrid External Cavity Laser with an Amorphous Silicon-Based Photonic Crystal Cavity Mirror
Applied Sciences, 2019 The authors present results on the performance of a hybrid external cavity photonic crystal laser-comprising semiconductor optical amplifier, and a 2D photonic crystal cavity fabricated in low-temperature amorphous silicon.
Simone Iadanza +4 more
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