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Evaluation of Resiliency of Transportation Networks After Disasters
(The National Academies of Sciences, Engineering, and Medicine, 2012)
The resiliency of infrastructure, particularly as related to transportation networks, is essential to any society. This resiliency is especially vital in the aftermath of disasters. Recent events around the globe, including ...
Zro2 Thin-Film-Based Sapphire Fiber Temperature Sensor
(Optical Society of America, 2012-10-01)
A submicrometer-thick zirconium dioxide film was deposited on the tip of a polished C-plane sapphire fiber to fabricate a temperature sensor that can work to an extended temperature range. Zirconium dioxide was selected ...
Evidence for anisotropic polar nanoregions in relaxor Pb(Mg1/3Nb2/3)O-3: A neutron study of the elastic constants and anomalous TA phonon damping in PMN
(American Physical Society, 2012-09-18)
We use neutron inelastic scattering to characterize the acoustic phonons in the relaxor Pb(Mg1/3Nb2/3)O-3 (PMN) and demonstrate the presence of a highly anisotropic damping mechanism that is directly related to short-range ...
Physical layer orthogonal frequency-division multiplexing acquisition and timing synchronization security
(Wiley, 2014-08-18)
Orthogonal frequency-division multiplexing (OFDM) has become the manifest modulation choice for 4G standards. Timing acquisition and carrier frequency offset synchronization are prerequisite to OFDM demodulation and must ...
Displaying a high-resolution digital hologram on a low-resolution spatial light modulator with the same resolution obtained from the hologram
(Optical Society of America, 2013-07-01)
In this paper, a fast method for displaying a digital, real and offaxis Fresnel hologram on a lower resolution device is reported. Preserving the original resolution of the hologram upon display is one of the important ...
Binary Mask Programmable Hologram
(Optical Society of America, 2012-11-01)
We report, for the first time, the concept and generation of a novel Fresnel hologram called the digital binary mask programmable hologram (BMPH). A BMPH is comprised of a static, high resolution binary grating that is ...
Fast numerical generation and encryption of computer-generated Fresnel holograms
(Optical Society of America, 2011-03-01)
In the past two decades, generation and encryption of holographic images have been identified as two important areas of investigation in digital holography. The integration of these two technologies has enabled images to ...
Real-time relighting of digital holograms based on wavefront recording plane method
(Optical Society of America, 2012-03-01)
Relighting is an important technique in photography which enables the optical properties of a picture to be modified without retaking it again. However, different from an optical image, a digital hologram cannot be relit ...
Enhancing the pictorial content of digital holograms at 100 frames per second
(Optical Society of America, 2012-06-01)
We report a low complexity, non-iterative method for enhancing the sharpness, brightness, and contrast of the pictorial content that is recorded in a digital hologram, without the need of re-generating the latter from the ...
Novel method for converting digital Fresnel hologram to phase-only hologram based on bidirectional error diffusion
(Optical Society of America, 2013-10-01)
We report a novel and fast method for converting a digital, complex Fresnel hologram into a phase-only hologram. Briefly, the pixels in the complex hologram are scanned sequentially in a row by row manner. The odd and even ...