Category: 4. Physics

Theory

Consider a quantized electromagnetic field \(\hat{E}\) transmitted over free space to a phased array receiver. The field can be decomposed into positive and negative frequency components, \(\hat{E}={\hat{E}}^{+}+{\hat{E}}^{-}\), where

Calculating (\(\mu _{PE},\mu _{CS}\))

In 1976 Alvarez and Macovski¹⁴ described that for energies relevant for medical imaging, the x-ray attenuation \(\mu\) for any material can be approximated as

Inversion framework for determining elastic constants

To determine the elastic constants of laminated composites, this study presents an inversion framework. First, a time–space wavefield of omnidirectional guided waves is acquired using laser…

FTIR spectrum analysis

Fourier-transform infrared (FTIR) spectroscopy was employed to analyze the chemical composition and functional groups present in cerium dioxide and non-imprinted polymer nanoparticles^32,33. As illustrated in Fig. 2a, the…

To guide the ABED experiment, we simulated ABED patterns from local atomic configurations of amorphous HfO₂. For this purpose, we first prepared ten structural models of amorphous HfO₂ with 324 atoms by ab-initio MD simulation and characterized…