Results 21 to 30 of about 7,458,947 (249)

Enhanced Modal Coupling Loss in a Two-Mode SOI Waveguide of Broken Parity-Time Symmetry

IEEE Photonics Journal, 2018
Effect of optical loss, presented in a superstructure grating with a complex refractive index profile, on the mode coupling is studied in a two-mode silicon-on-insulator waveguide.
Ang Liu, Tianying Lin, Xiaopei Zhang, Hailong Han, Ze Chen, Xiaoping Liu, Haibin Lv   +6 more
doaj   +1 more source

Multi-factor risk analysis and early warning system of oil and gas accidents based on N–K coupling model [PDF]

AIP Advances
Current research on oil and gas accidents generally has the problems of scattered risk factor identification, linear and static methods, and difficulty in modeling multi-factor nonlinear coupling and its dynamic evolution path.
Yao Hu, Zhilong Ding, Liguang Qiao, Feng Gu   +3 more
doaj   +1 more source

Theoretical investigation on the scale factor of a triple ring cavity to be used in frequency sensitive resonant gyroscopes [PDF]

Journal of the European Optical Society-Rapid Publications, 2013
In this paper we study a multi-ring resonant structure including three evanescently coupled ring resonators (named triple ring resonator, TRR), with different ring radii and coupling coefficients, and coupled to two bus waveguides.
Ciminelli C., Campanella C. E., Dell’Olio F., Campanella C. M., Armenise M. N.   +4 more
doaj   +1 more source

Strain coupling and dynamic relaxation in multiferroic metal-organic framework [(CH3)2NH2][Mn(HCOO)3] with perovskite structure

Results in Physics, 2019
Strain coupling with ferromagnetism and ferroelectricity plays an important role in the development of multiferroic metal-organic frameworks (MOFs) with strong magnetoelectric coupling, but the underlying mechanisms have not been well understood.
Zhiying Zhang, Hao Tang, Dongpeng Cheng, Jikang Zhang, Yatao Chen, Xin Shen, Hongliang Yu   +6 more
doaj   +1 more source

CAST constraints on the axion-electron coupling [PDF]

, 2013
In non-hadronic axion models, which have a tree-level axion-electron interaction, the Sun produces a strong axion flux by bremsstrahlung, Compton scattering, and axiorecombination, the "BCA processes." Based on a new calculation of this flux, including ...
Barth, Klaus, Belov, A., Hoffmann, D.H.H., Eleftheriadis, Christos, Miller, David W., Zioutas, K., Franz, Jürgen, Englhauser, J., Franz, J., Lakic, B., Villar, J., Gninenko, Sergei, Vieira, Joaquin D., Papaevangelou, Thomas, Riege, H., Ferrer-Ribas, E., Liolios, Anastasios, Walckiers, L., Walckiers, Louis, Kotthaus, R., Eleftheriadis, C., Belov, Alexander, Stewart, L., Pivovaroff, Mike J., Ruz, Jaime, Gómez, Héctor, Villar, José A., Davenport, Martyn, Luzón, Gloria, Jacoby, J., Semertzidis, Y., Königsmann, K., Heinsius, Fritz-Herbert, Savvidis, Ilias, Beltran, Berta, Hasinoff, M.D., Jacoby, Joachim, Vieira, J., Hoffmann, Dieter H. H., Giomataris, I., Vogel, J., Collar, J.I., García, J. A., Hasinoff, Michael D., Miller, D.W., Pivovaroff, M., Lutz, Gerhard, Carmona, J., Jakovcic, K., Jakovčić, Kresimir, Galan, J., Irastorza, I.G., Liolios, A., García, J., Ljubičić, Ante, Redondo, Javier, Friedrich, P., Heinsius, F.H., Collar, Juan I., Giomataris, Ioanis, Englhauser, Jakob, Vogel, Julia K., Kang, Donghwa, Bräuninger, Heinrich, Lutz, G., Fanourakis, G., Dafni, T., Villar, J.A., Krčmar, Milica, Bräuninger, H., Raffelt, G., Friedrich, Peter, Carmona, José Manuel, Di Lella, Luigi, Riege, Hans, Davenport, M., Rodríguez, A., Geralis, Theodoros, Kang, D., Stewart, Laura, Savvidis, I., Vieira, J.D., Fischer, H., Ljubicic, A., Pivovaroff, M.J., Galán, Javier, Collar, J., Fanourakis, George, Beltran, B., Ferrer-Ribas, Ester, Kuster, M., Luzon, G., Carmona, J.M., Papaevangelou, T., Miller, D., Irastorza, Igor Garcia, Zioutas, Konstantin, Ruz, J., Irastorza, I., Garcia, J.A., Hoffmann, D., Fischer, Horst, Dafni, Theopisti, Kousouris, Konstantinos, Raffelt, Georg, Heinsius, F., Kousouris, K., Van Bibber, K., Vogel, J.K., Barth, K., Hasinoff, M., Redondo, J., Di Lella, L., Krcmar, M., Königsmann, Kay, Gninenko, S., Lakić, Biljana, Bibber, Karl van, Gomez, H., Geralis, T., Kotthaus, Rainer, Semertzidis, Yannis   +121 more
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Vibration control using vibration energy transmissibility of two-degree-of-freedom system with a coupling damper

Mechanical Engineering Journal
Frequency-averaged energy transmissibility and energy dissipation are formulated for a 2-DOF vibration system with both a coupling spring and a coupling damper, and their usefulness for vibration control design is discussed.
Kai KURIHARA, Toru YAMAZAKI
doaj   +1 more source

Butterfly-like phase shift: a novel gauge for critical coupling of add–drop resonator

Journal of Theoretical and Applied Physics, 2018
Optical transfer function for add–drop resonator is derived in the presence of coupling loss using the scattering matrix method. A critical coupling condition for ADR is calculated.
Mahdi Bahadoran, Preecha Yupapin
doaj   +1 more source

Propagation loss in slow light photonic crystal waveguides [PDF]

, 2012
The field of nanophotonics is a major research topic, as it offers potential solutions to important challenges, such as the creation of low power, high bandwidth interconnects or optical sensors.
Schulz, Sebastian Andreas
core   +2 more sources

Loss of Caveolin-1 Impairs Light Flicker-Induced Neurovascular Coupling at the Optic Nerve Head

Frontiers in Neuroscience, 2021
Glaucoma is a neurodegenerative disease, which results in characteristic visual field defects. Intraocular pressure (IOP) remains the main risk factor for this leading cause of blindness. Recent studies suggest that disturbances in neurovascular coupling
Jing Hong Loo, Ying Shi Lee, Chang Yi Woon, Victor H. K. Yong, Bingyao Tan, Bingyao Tan, Bingyao Tan, Leopold Schmetterer, Leopold Schmetterer, Leopold Schmetterer, Leopold Schmetterer, Leopold Schmetterer, Rachel S. Chong, Rachel S. Chong   +13 more
doaj   +1 more source

In situ loss measurement of direct UV written waveguides using integrated Bragg gratings

, 2010
The propagation loss of a direct UV-written silica-on-silicon waveguide is measured using an elegant nondestructive method. The technique uses integrated Bragg grating structures, which are observed from opposing launch directions to obtain information ...
Rogers, H.L., Smith, P.G.R., Sumiaty Ambran, Ambran, S., James C. Gates, Christopher Holmes, Holmes, C., Gates, J.C., Helen L. Rogers, Peter G. R. Smith   +9 more
core   +1 more source