Results 71 to 80 of about 6,877,003 (306)
Phase Control of Spontaneous Emission [PDF]
Physical Review Letters, 1998 We use the phase difference of two lasers with equal frequencies for the control of spontaneous emission in a four-level system. Effects such as extreme spectral narrowing and selective and total cancellation of fluorescence decay are shown as the relative phase is varied.
Paspalakis, E, Knight, PL
openaire +3 more sources
Therapeutic Apheresis and Dialysis, EarlyView.ABSTRACT Secondary hyperparathyroidism (SHPT) is a common complication in patients receiving maintenance dialysis, driven by calcium and phosphate metabolism disturbances. Calcimimetics are central to the management of SHPT by enhancing calcium‐sensing receptor sensitivity and reducing parathyroid hormone secretion.
Fumihiko Koiwa +3 more
wiley +1 more source
Phase control of squeezing in fluorescence radiation
, 2014 We study squeezing properties of the fluorescence radiation emitted by a driven $\Lambda$-type atom in which the metastable lower energy levels are coupled by an additional field.
Arun, R.
core +1 more source
Laser pulses for coherent xuv Raman excitation [PDF]
, 2014 We combine multi-channel electronic structure theory with quantum optimal control to derive Raman pulse sequences that coherently populate a valence excited state. For a neon atom, Raman target populations of up to 13% are obtained. Superpositions of the
Greenman, Loren +2 more
core +3 more sources
Neuropeptides control life-phase transitions [PDF]
Proceedings of the National Academy of Sciences, 2013 The growth toward adulthood occurs mainly through one or several intermediate stages or larval forms. Driven by environmental and internal state cues, all animals undergo one or more transitions during their life, which are accompanied by changes in morphology, physiology, and behavior.
Schoofs, Liliane, Beets, Isabel
openaire +3 more sources
Therapeutic Apheresis and Dialysis, EarlyView.ABSTRACT Introduction Adult‐onset Still's disease (AOSD) complicated by macrophage activation syndrome (MAS) carries substantial mortality. The role of therapeutic plasma exchange (TPE) remains uncertain. Methods We retrospectively analyzed patients with AOSD‐MAS treated with TPE at a single‐center.
Masataka Ueda +15 more
wiley +1 more source
, 2011 We experimentally demonstrate stable and user-adjustable single-photon interference in a 1 km long fiber- optical Mach-Zehnder interferometer, using an active phase control system with the feedback provided by a classical laser.
von der Weid, J. P., Xavier, G. B.
core +1 more source
Experimental study on the heat transfer performance of vapor chamber with uniform/gradient wicks
Case Studies in Thermal EngineeringThe balance of the combined effect of wick permeability and capillary pressure is very important to improve the heat transfer capability of the vapor chamber (VC).
Liaofei Yin +3 more
doaj +1 more source
Unidirectional emission of phase-controlled second harmonic generation from a plasmonic nanoantenna
Nanophotonics, 2021 Shaping the emission pattern of second harmonic (SH) generation from plasmonic nanoparticles is important for practical applications in nonlinear nanophotonics but is rendered challenging by the complex second-order nonlinear-optical processes.
Tanaka Yoshito Y. +2 more
doaj +1 more source
Reciprocal control of viral infection and phosphoinositide dynamics
FEBS Letters, EarlyView.Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley +1 more source