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Displacement-sensitive photonic crystal structures based on guided resonance in photonic crystal slabs
Displacement-sensitive photonic crystal structures guided resonance photonic crystal slabs
2015/8/11
We introduce a mechanically tunable photonic crystal structure consisting of coupled photonic crystal slabs. Using both analytic theory, and first-principles finite-difference time-domain ...
Interfacial Strength Between Prestressed Hollow Core Slabs and Cast-in-Place Concrete Toppings
Interfacial Strength Prestressed Hollow Core Slabs Cast-in-Place Concrete Toppings
2014/10/22
The horizontal shear strength of the interface between prestressed concrete hollow core slabs and cast-in-place concrete topping slabs was evaluated through a set of 24 push-off experiments. The push-...
Strength of Concrete in Slabs, Investigates along Direction of Concreting
Concrete Compressive Strength of Concrete Non-Destructive
2013/1/31
In theory of concrete it is assumed that concrete composites are isotropic on a macro scale. For example, it is assumed that a floor slab’s or a beam’s strength is identical in all directions and its ...
Flexural performance of fire damaged and rehabilitated two span reinforced concrete slabs and beams
fire damage concrete continuous members rehabilitation flexural rigidity bearing capacity
2014/4/10
Five two-span reinforced concrete (RC) slabs and seven two-span RC beams were tested under the ISO 834 standard fire with different durations. CFRP strengthening was then applied to some of the specim...
Resonance-enhanced optical forces between coupled photonic crystal slabs
Modes Guided waves Optical forces
2015/8/10
The behaviors of lateral and normal optical forces between coupled photonic crystal slabs are analyzed. We show that the optical force is periodic with displacement, resulting in stable and unstable e...
An Incursion on Punching of Reinforced Concrete Flat Slabs
punching flat-slab-column connection concrete behaviour code design comparison
2010/8/18
Starting from the early 60s continuous studies have been made regarding punching of concrete flat slabs. The evolution of technology and calculus systems influenced this engineering branch. Nowadays i...
Punching shear resistance of high-strength concrete slabs
Punching shear slabs high-strength concrete CEB-FIP model code design standards
2009/2/20
The use of high-strength concrete in reinforced concrete slabs is becoming popular in Australia and other countries. Current design provisions of AS3600 and other major codes throughout the world are ...
Theoretical Evaluation on Effects of Opening on Ultimate Load-carrying Capacity of Square Slabs
Ultimate load slab opening capacity
2009/1/14
Reinforced concrete slabs are the most common structural elements found in building construction. Despite the large number of slabs designed and built, the details of the elastic and plastic behaviour...
EFFECTS OF MULTIPLE DETONATIONS ON THE DAMAGE OF REINFORCED CONCRETE SLABS
reinforced concrete multiple detonation damage crater
2008/12/24
In this study, effects of multiple detonations on reinforced concrete (RC) slabs has been experimentally investigated to improve design and damage estimation methods of RC shelters. One of main resul...
Aligning microcavity resonances in silicon photonic-crystal slabs using laser-pumped thermal tuning
Aligning microcavity resonances silicon photonic-crystal slabs laser-pumped thermal tuning
2015/8/10
We report the postfabrication alignment of multiple microcavity resonances in silicon photonic-crystal !PhC" slabs using laser-pumped thermal tuning. The thermal gradient resulting from a focused lase...
Analysis of guided-resonance-based polarization beam splitting in photonic crystal slabs
Analysis guided-resonance-based polarization beam splitting photonic crystal slabs
2015/8/10
We present an analysis of the phase and amplitude responses of guided resonances in a photonic crystal slab.Through this analysis, we obtain the general rules and conditions under which a photonic cry...
Air-bridged photonic crystal slabs at visible and near-infrared wavelengths
Air-bridged photonic crystal slabs visible near-infrared wavelengths
2015/8/11
Air-bridged photonic crystal slabs are demonstrated at visible and near-infrared wavelengths. We present experimental and theoretical studies of the transmission spectra of air-bridged photonic crysta...
Radiation loss of coupled-resonator waveguides in photonic-crystal slabs
Radiation loss coupled-resonator waveguides photonic-crystal slabs
2015/8/11
The authors characterize the intrinsic radiation loss of coupled-resonator optical waveguides by defining a waveguide-quality factor Q. They find that tuning an isolated resonator in a pho...
The modelling of high-contrast photonic crystal slabs using the novel extension of the effective index method
photonic crystal slabs effective index method
2011/4/28
This paper presents a new approach to determination of the band structure in two-dimensional (2D) photonic crystal slabs using the enhanced effective index approximation. The proposed method remains v...
Photonic crystal slabs demonstrating strong broadband suppression of transmission in the presence of disorders
Photonic crystal slabs strong broadband suppression transmission disorders
2015/8/11
We characterize the transmission spectra of out-of-plane, normal-incidence light of two-dimensional silicon photonic crystal slabs and observe excellent agreement between the measured data and finite-...