Institutional review board approval, with waived consent, was obtained to develop a spine-labeling algorithm with retrospectively obtained deidentified HIPAA-compliant data. An automated magnetic resonance (MR) imaging technique to rapidly survey the entire spine and provide definitive numbering of disks and vertebrae was compared with neuroradiologist assignments in 50 cases. Contiguous two-st...

In this paper, we use improved Z-scan and I-scan methods to analyze the refractive optical nonlinearities of the deoxyribonucleic acid (DNA) samples, which occur with continuous wave and femtosecond pulsed lasers and our proposed solutions to further improve both the methods and the nonlinear optical properties of DNA.

BACKGROUND Previous studies have linked cardiac dysfunction to loss of metabolites in the creatine kinase system. Chemical exchange saturation transfer (CEST) is a promising metabolic cardiovascular magnetic resonance (CMR) imaging technique and has been applied in the heart for creatine mapping. However, current limitations include: (a) long scan time, (b) residual cardiac and respiratory moti...

This paper aims to study the nonlinear absorption characteristics of palladium nanoparticles (PdNPs) at off-resonant wavelengths. For this purpose, multi-wavelength (500–650 nm) nanosecond Z-scan technique was used. The experimental results indicate that saturated (SA) and transition from SA reverse (RSA) can occur, depends on excitation wavelength energy. When is constant, with increase energy...

In the present work third-order nonlinear optical (NLO) properties of complex-oxides crystals, including absorption (NLA) and refraction (NLR) are performed by Z-scan technique. The non-centrosymmetric lithium niobate (LiNbO3) tantalite (LiTaO3) centrosymmetric cadmium tungstate (CdWO4), calcium (CaWO4) molybdate (CaMoO4) single crystals were used for experimental investigation. main parameters...