Results 11 to 20 of about 3,406,012 (295)

Modeling sound propagation in acoustic waveguides using a hybrid numerical method [PDF]

open access: yes, 2008
Sound propagation in an acoustic waveguide is examined using a hybrid numerical technique. Here, the waveguide is assumed to be infinite in length with an arbitrary but uniform cross-section.
Kirby, R, Ray Kirby
core   +7 more sources

The beam propagation method used for the design of an integrated optical coupler [PDF]

open access: yes, 2007
The beam propagation method (BPM) used for the design of an integrated optical (IO) coupler was proposed in this paper. A modal of the IO coupler was set up in BeamPROP software that is based on the BPM, and then the modes and the bi-directional ...
Yang, Shuming, Jiang, Xiang
core   +4 more sources

Acoustic Pressure, Particle Motion, and Induced Ground Motion Signals from a Commercial Seismic Survey Array and Potential Implications for Environmental Monitoring

open access: yesJournal of Marine Science and Engineering, 2021
An experimental marine seismic source survey off the northwest Australian coast operated a 2600 cubic inch (41.6 l) airgun array, every 5.88 s, along six lines at a northern site and eight lines at a southern site.
Robert D. McCauley   +2 more
doaj   +1 more source

Single Mode, Air-Cladded Optical Waveguides Supported by a Nano-Fin Fabricated with Direct Laser Writing

open access: yesApplied Sciences, 2021
Single-mode, air-cladded optical waveguides have wavelength scale diameters, making them very fragile and difficult to handle and yet highly desirable for sensing and inter-chip photonic interconnects.
Parvinder K. Gill, Dan M. Marom
doaj   +1 more source

Acoustoelectric Effect for Rayleigh Wave in ZnO Produced by an Inhomogeneous In-Depth Electrical Conductivity Profile

open access: yesSensors, 2023
The acousto-electric (AE) effect associated with the propagation of the Rayleigh wave in ZnO half-space was theoretically investigated by studying the changes in wave velocity and propagation loss induced by in-depth inhomogeneous changes in the ZnO ...
Cinzia Caliendo
doaj   +1 more source

Propagation loss in slow light photonic crystal waveguides [PDF]

open access: yes, 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

Long-Range Spoof Surface Plasmons(LRSSP) on the Asymmetric Double Metal Gratings

open access: yesIEEE Photonics Journal, 2021
Spoof surface plasmons (SSP) on the corrugated metal surfaces have been widely studied over the past decade in both microwave and Terahertz (THz) band. Previous studies show that SSP mode on the metal grating suffers from high dissipative losses in high ...
Yong-Qiang Liu   +2 more
doaj   +1 more source

Long Low-Loss-Litium Niobate on Insulator Waveguides with Sub-Nanometer Surface Roughness

open access: yesNanomaterials, 2018
In this paper, we develop a technique for realizing multi-centimeter-long lithium niobate on insulator (LNOI) waveguides with a propagation loss as low as 0.027 dB/cm.
Rongbo Wu   +11 more
doaj   +1 more source

Understanding the rich physics of light propagation in slow photonic crystal waveguides [PDF]

open access: yes, 2010
Selected papers. Held as part of SPIE Photonics West 2010.We study propagation losses in slow light photonic crystal waveguides and show that dispersion engineering can reduce the loss.
Lalanne, Phillippe   +35 more
core   +1 more source

Multiscale Decomposition Prediction of Propagation Loss in Oceanic Tropospheric Ducts

open access: yesRemote Sensing, 2021
The oceanic tropospheric duct is a structure with an abnormal atmospheric refractive index. This structure severely affects the remote sensing detection capability of electromagnetic systems designed for an environment with normal atmospheric refraction.
Mingxia Dang   +6 more
doaj   +1 more source

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