Results 241 to 250 of about 56,421 (293)
Advanced Functional Materials, EarlyView.Self‐assembled monolayers (SAMs) are promising hole‐transporting materials for organic photovoltaics (OPVs), but suffer from self‐aggregation and poor large‐area uniformity. We find that interfacial modification using nicotinic hydrazide can eliminate the residual SAM aggregates by forming energetically favorable complexes, yielding uniform SAM.
Seongwon Yoon +10 more
wiley +1 more source
Nanodiamond Quantum Sensors for Probing Free Radical Biology
Advanced Functional Materials, EarlyView.Free radicals play key roles in cellular signaling and disease but remain difficult to measure in living systems. Nanodiamonds (NDs) with nitrogen‐vacancy (NV) centers enable quantum sensing of local magnetic noise via T₁ relaxometry, providing nondestructive radical detection in living cells.
Qi Lu, Yingke Wu, Tanja Weil
wiley +1 more source
Cross enclosed square split ring resonator based on D.N.G. metamaterial absorber for X-band glucose sensing application. [PDF]
HeliyonKhalil MA +6 more
europepmc +1 more source
Multi-band terahertz anisotropic metamaterial absorber composed of graphene-based split square ring resonator array featuring two gaps and a connecting bar. [PDF]
Sci RepAsgari S, Fabritius T.
europepmc +1 more source
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Resonance splitting in gyrotropic ring resonators
Optics Letters, 2010We present the theoretical concept of an optical isolator based on resonance splitting in a silicon ring resonator covered with a magneto-optical polymer cladding. For this task, a perturbation method is derived for the modes in the cylindrical coordinate system. A polymer magneto-optical cladding causing a 0.01 amplitude of the off-diagonal element of
Dirk, Jalas +4 more
openaire +2 more sources
2020
Ring Resonators: Theory and Modeling.- Materials, Fabrication, and Characterization Methods.- Building Blocks of Ring Resonator Devices.- Devices.- Whispering Gallery Mode Devices.- Outlook.
Cinzia sada, Dominik Gerhard Rabus
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Ring Resonators: Theory and Modeling.- Materials, Fabrication, and Characterization Methods.- Building Blocks of Ring Resonator Devices.- Devices.- Whispering Gallery Mode Devices.- Outlook.
Cinzia sada, Dominik Gerhard Rabus
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Ringing phenomenon of the fiber ring resonator
Applied Optics, 2007A resonator fiber-optic gyro (R-FOG) is a high-accuracy inertial rotation sensor based on the Sagnac effect. A fiber ring resonator is the core sensing element in the R-FOG. When the frequency of the fiber ring resonator input laser is swept linearly with time, ringing of the output resonance curve is observed.
Diqing, Ying, Huilian, Ma, Zhonghe, Jin
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SPIE Proceedings, 1984
All-fiber ring resonators using ultra low loss directional couplers have been fabricated with finesse as high as 500. Resonator finesse is no longer limited by coupler loss and can be increased by lowering fiber loop loss. New polarization effects in the resonator have been observed indicating polarization dependent coupling in the directional coupler.
Ming H. Yu, David B. Hall
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All-fiber ring resonators using ultra low loss directional couplers have been fabricated with finesse as high as 500. Resonator finesse is no longer limited by coupler loss and can be increased by lowering fiber loop loss. New polarization effects in the resonator have been observed indicating polarization dependent coupling in the directional coupler.
Ming H. Yu, David B. Hall
openaire +1 more source
Journal of the Optical Society of America B, 2008
A ring resonator composed of a plasmonic waveguide is presented. For the plasmonic waveguide, an array of silver nanorods is assumed. To determine the modes of this ring resonator, the generalized multipole technique (GMT) is used. Using this analysis, we obtain various modes of the proposed ring resonator.
Nahid Talebi +2 more
openaire +1 more source
A ring resonator composed of a plasmonic waveguide is presented. For the plasmonic waveguide, an array of silver nanorods is assumed. To determine the modes of this ring resonator, the generalized multipole technique (GMT) is used. Using this analysis, we obtain various modes of the proposed ring resonator.
Nahid Talebi +2 more
openaire +1 more source
2016 IEEE Photonics Conference (IPC), 2016
We report on our study of a temperature response of ring resonator based sensors and their interchangeability over a wide temperature range. Our results suggest that with a proper fabrication process control the interchangeability in photonic thermometers can be on a 0.2 °C tolerance band.
Nikolai Klimov, Zeeshan Ahmed
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We report on our study of a temperature response of ring resonator based sensors and their interchangeability over a wide temperature range. Our results suggest that with a proper fabrication process control the interchangeability in photonic thermometers can be on a 0.2 °C tolerance band.
Nikolai Klimov, Zeeshan Ahmed
openaire +1 more source