Results 311 to 320 of about 18,502,554 (380)
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Laser physics, 2022
Fano resonance with high Q-factor plays a pivotal role in the field of optoelectronic applications, especially refractive index sensing. However, ultra-high Q-factor for metallic metasurfaces has been a challenge due to their great ohmic losses.
Shaozhe Song +3 more
semanticscholar +1 more source
Fano resonance with high Q-factor plays a pivotal role in the field of optoelectronic applications, especially refractive index sensing. However, ultra-high Q-factor for metallic metasurfaces has been a challenge due to their great ohmic losses.
Shaozhe Song +3 more
semanticscholar +1 more source
Journal of Lightwave Technology, 2022
We propose and demonstrate a six-hole tapered silicon photonic crystal nanobeam cavity with a theoretical high quality (Q) factor and an ultrasmall mode volume based on machine learning. The crucial element to efficiently obtain high Q factors is to take
Li Liu +6 more
semanticscholar +1 more source
We propose and demonstrate a six-hole tapered silicon photonic crystal nanobeam cavity with a theoretical high quality (Q) factor and an ultrasmall mode volume based on machine learning. The crucial element to efficiently obtain high Q factors is to take
Li Liu +6 more
semanticscholar +1 more source
How Do the Purcell Factor, the Q‐Factor, and the Beta Factor Affect the Laser Threshold?
Laser & Photonics reviews, 2021As lasers get more and more miniaturized and their dimensions become comparable to the wavelength, two interconnected phenomena take place: the fraction of spontaneous radiation going into a specific laser mode (β‐factor) increases and can ultimately ...
J. Khurgin, M. Noginov
semanticscholar +1 more source
IEEE transactions on microwave theory and techniques, 2021
With the widespread use of millimeter-wave radar in advanced driver assistance systems (ADASs) and higher level autonomous driving, the probability of mutual interference increases.
Zhihuo Xu, M. Yuan
semanticscholar +1 more source
With the widespread use of millimeter-wave radar in advanced driver assistance systems (ADASs) and higher level autonomous driving, the probability of mutual interference increases.
Zhihuo Xu, M. Yuan
semanticscholar +1 more source
Greater than one billion Q factor for on-chip microresonators.
Optics Letters, 2020High optical quality (Q) factors are critically important in optical microcavities, where performance in applications spanning nonlinear optics to cavity quantum electrodynamics is determined.
Lue Wu +7 more
semanticscholar +1 more source
Coenzyme Q as an Antiadipogenic Factor
Antioxidants & Redox Signaling, 2011Coenzyme Q (CoQ) is not only the single antioxidant synthesized in humans but also an obligatory element of mitochondrial functions. We have previously reported CoQ deficiency in white adipose tissue of ob/ob mice. We sought to determine (i) whether this deficit exists in all species and its relevance in human obesity and (ii) to what extent CoQ could ...
Bour, Sandy +7 more
openaire +6 more sources
Factorizations of the groupsG 2 (q)
Archiv der Mathematik, 1985Let \(G_ 2(q)\) be the (simple) group of Lie type \((G_ 2)\) over the finite field GF(q). The following result is proved. Theorem. Let \(G=G_ 2(q)\) and \(G=AB\) where A, B are proper non-Abelian simple subgroups of G. Then one of the following holds: (1) \(q=4\) and \(A\cong HJ\), \(B\cong U_ 3(4)\); (2) \(q=3^ n\) and \(A\cong L_ 3(q)\), \(B\cong U_ ...
K. B. Tchakerian, Ts. R. Gentchev
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IEEE Transactions on Instrumentation and Measurement, 2020
A D-shaped fiber based long-range surface plasmon resonance (LRSPR) sensor with high quality factor ( $Q$ -factor) of 67.75 RIU−1 and temperature self-compensation was proposed and demonstrated. The multilayered architecture of the LRSPR sensor consisted
Qi Wang +4 more
semanticscholar +1 more source
A D-shaped fiber based long-range surface plasmon resonance (LRSPR) sensor with high quality factor ( $Q$ -factor) of 67.75 RIU−1 and temperature self-compensation was proposed and demonstrated. The multilayered architecture of the LRSPR sensor consisted
Qi Wang +4 more
semanticscholar +1 more source
Journal of Physics D: Applied Physics, 2020
The terahertz (THz) perfect absorber with ultra-narrow bandwidth at near-unity absorbance has been a challenging issue due to mutual restrictions of elemental requirements in the design.
Fei Yan +4 more
semanticscholar +1 more source
The terahertz (THz) perfect absorber with ultra-narrow bandwidth at near-unity absorbance has been a challenging issue due to mutual restrictions of elemental requirements in the design.
Fei Yan +4 more
semanticscholar +1 more source
Q-Factor Studies for Multiport Antennas
2021 15th European Conference on Antennas and Propagation (EuCAP), 2021In this paper, we study the quality factor Q for multiport antennas. We demonstrate that determining the feeding signals of the ports has an essential role when aiming at minimizing the Q-factor. A simple example is used to illustrate the connection of the bandwidth and Q-factor.
Yla-Oijala, Pasi +3 more
openaire +3 more sources