Steven L. Wright
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View article: Heterogeneous tantala photonic integrated circuits for sub-micron wavelength applications
Heterogeneous tantala photonic integrated circuits for sub-micron wavelength applications Open
Atomic and trapped-ion systems are the backbone of a new generation of quantum-based positioning, navigation, and timing (PNT) technologies. The miniaturization of such quantum systems offers tremendous technological advantages, especially…
View article: Solvent-pumped evaporation concentration on paper in linear and radial geometries
Solvent-pumped evaporation concentration on paper in linear and radial geometries Open
Solvent-pumped evaporation-driven concentration of an initial distribution of solutes on a porous substrate is considered in one and two dimensions. Approximate analytic solutions to the isotropic advection–dispersion equations are first f…
View article: Paper-based evaporation concentrators: Comparison of linear and radial geometries
Paper-based evaporation concentrators: Comparison of linear and radial geometries Open
Paper-based evaporation concentrators with linear and radial geometries are compared. A new method of finding approximate analytic solutions of the advection–dispersion equation is proposed, based on the behavior of concentrators with infi…
View article: Shock-free ion transmission in a skimmer-based MEMS mass spectrometer vacuum interface
Shock-free ion transmission in a skimmer-based MEMS mass spectrometer vacuum interface Open
Shock-free ion transmission from atmospheric pressure to a microelectromechanical system (MEMS)-based mass spectrometer has been achieved using micro-engineered nickel skimmers. The signal level has increased 70-fold compared with a previo…