Introduction: Adiabatic full passage (AFP) pulses are well known for their immunity to the B1 inhomogeneity [1], and have been applied in many areas of magnetic resonance spectroscopy (MRS) and MRI, such as signal sensitivity enhancement and sharp volume boundary definition [2-4]. However, the application of selective AFP refocusing pulses has been limited by the inherent nonlinear phase disper...

Cross relaxation between macromolecular protons and water protons is known to be important in biologic tissue. In magnetic resonance (MR) imaging sequences, selective saturation of the characteristically short T2 macromolecular proton pool can produce contrast called magnetization transfer contrast, based on the cross-relaxation process. Selective saturation can be achieved with continuous wave...

The temporal properties of a sample of 498 bright gamma-ray bursts (GRBs) with durations between 0.05 s and 674 s were analysed. The large range in duration (T90) is accompanied by a similarly large range in the median values of the pulse timing properties including rise time, fall time, FWHM and separation between the pulses. Four timing diagrams relating these pulse properties to T90 are pres...

Interactions between particles in quantum many-body systems play a crucial role determining the electric, magnetic, optical, and thermal properties of system. The recent progress laser-pulse technique has enabled manipulations measurements physical on ultrafast timescales. Here, we propose method for direct probing interaction through coherent two-dimensional (2D) spectroscopy. Up to moderate s...

We propose a combination of electromagnetically induced transparency-Raman and pulsed spectroscopy techniques to accurately cancel frequency shifts arising from electromagnetically induced transparency fields in forbidden optical clock transitions of alkaline earth atoms. At appropriate detunings, time-separated laser pulses are designed to trap atoms in coherent superpositions while eliminatin...

PURPOSE To investigate the effect of lens density on liquefaction time by using liquefaction device (AquaLase, Alcon Laboratories, TX, U.S.A.). METHODS Cataract surgery using AquaLase was performed on 47 eyes. With a Scheimpflug camera, the density and thickness of lens were measured in eye of each patient preoperatively. During surgery, liquefaction time and total number of pulses were recor...