Observation of four-quasiparticle band and signature splitting features in 160tm，陆景彬，杨东，High-spin states of 160Tm are studied via in-beam gamma-ray spectroscopy. Previously known rotational bands are confirmed, and feed into low-lying states which ar
Two types of 1 \times 2 multi-mode interference (MMI) splitters with splitting ratios of 85:15 and 72:28 are designed. On the basis of a numerical simulation, an optimal length of the MMI section is obtained. Subsequently, the devices are fabricated
We propose a novel on-line beam diagnostic method based on single-shot beam splitting phase retrieval. The incident beam to be measured is diffracted into many replicas by a Dammann grating and then propagates through a weakly scattering phase plate
