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An Experimental Study on the Effect of Steel Fiber Reinforced Concrete on the Behavior of the Exterior Beam-Column Joints Subjected to Reversal Cyclic Loading
Beam-column joint Steel fiber reinforced concrete Ductile behavior
2009/10/12
For the ductile behavior of beam-column joints, closely spaced transverse reinforcement is required by earthquake codes. However, placement of this reinforcement in joints always causes some dicultie...
Polarization-Reversal in Stoichiometric LiNbO3/LiTaO3 and Application to Optical Devices
Quasi-phase matching (QPM) LiTaO3 stoichiometry
2009/6/8
A polarization-reversed optical device has been attracting much attention as a next generation device due to its desinability and flexibility. Quasi-phase-matched (QPM) wavelength converters using pol...
Laser Beam Control by Electro-Optic Devices Using Polarization Reversal
Polarizaion reversal Domain inversion Electro-optic devices
2009/6/8
Polarization reversal of an electro-optic crystal makes spatial control of the modulation polarity in the crystal. Electro-optic modulators using polarization reversal have remarkable features of spat...
Wafer Surface Charge Reversal as a Method of Simplifying Nanosphere Lithography for Reactive Ion Etch Texturing of Solar Cells
Simplifying Nanosphere Lithography Solar Cells
2008/10/30
A simplified nanosphere lithography process has been developed which allows fast and low-waste maskings of Si surfaces for subsequent reactive ion etching (RIE) texturing. Initially, a positive surfac...
Suppressing the effect of disorders using time-reversal symmetry breaking in magneto-optical photonic crystals: An illustration with a four-port circulator
Magneto-optics Photonic crystals Optical resonances Channel add/drop fi lters Optical circulators Nonreciprocity
2015/8/11
In integrated optical systems, nonreciprocal elements are indispensable devices that eliminate multi-path reflection between components. To miniaturizing these devices down to a single-wavelengt...
Dynamic Photonic Structures:Stopping,Storage,and Time Reversal of Light
Dynamic Photonic Structures Stopping Storage Time Reversal of Light
2015/8/11
The use of dynamic photonic structures opens fascinating new possibilities for controlling the properties of light. The general idea is to create a coupled resonator array such that a light pulse can ...
Time Reversal of Light with Linear Optics and Modulators
Time Reversal Light Linear Optics Modulators
2015/8/11
We introduce a new physical process that can perform a complete time-reversal operation on any electromagnetic pulse. The process uses only small refractive index modulations of linear optical element...