Terahertz non-destructive imaging of cracks and cracking in structures of cement-based materials

Li, Jiu-Sheng, Yang Li, and Le Zhang.AbstractWe designed a terahertz bandpass filter based on double-layer frequency selective surface. Details of the proposed terahertz wave filter design and of the related parametric analysis are presented and discussed. The...

Damage assessment in composite materials using full wavefield analysis

WANDOWSKI, Tomasz, Pawel H. MALINOWSKI, and Wieslaw M. OSTACHOWICZ.AbstractIn this paper damage assessment method is presented. This method is based on phenomenon of guided elastic waves propagation. Guided waves are generated by piezoelectric transducer and...

Global mapping of stratigraphy of an old-master painting using sparsity-based terahertz reflectometry

Dong, Junliang, Alexandre Locquet, Marcello Melis, and D. S. Citrin.AbstractThe process by which art paintings are produced typically involves the successive applications of preparatory and paint layers to a canvas or other support; however, there is an absence of...

Nondestructive Imaging of Packaged Microelectronics using Pulsed Terahertz Technology

Tyler Bowman and Magda El-ShenaweeAbstractThis work presents the use of terahertz reflection imaging for nondestructive evaluation of packaged microelectronics. Power MOSFETs and SRAM devices are placed in a pulsed terahertz imaging system in the reflection mode with...

Vibrational states of nano-confined water molecules in beryl investigated by first-principles calculations and optical experiments

Belyanchikov, Mikhail, Elena Zhukova, Sergei Tretiak, Andriy Zhugayevych, Martin Dressel, Frank Uhlig, Jens Smiatek, Maria Fyta, Victor G. Thomas, and Boris Gorshunov.AbstractUsing quantum mechanical calculations within density functional theory, we provide a...