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Displaying 1 - 25 of 74

Interaction of aerosol particle with a standing wave optical field

September 16, 2016
Author(s)
John J. Curry
Trajectories of spherical dielectric particles carried across an optical standing wave by a flowing medium areinvestigated. Trajectories are determined by a three-dimensional Monte Carlo calculation that includes drag forces, Brownian motion, and optical

Continuous-feed optical sorting of aerosol particles

June 15, 2016
Author(s)
John J. Curry, Zachary H. Levine
We consider the problem of sorting, by size, spherical particles of order 100 nm radius. The scheme we analyze consists of a heterogeneous stream of spherical particles flowing at an oblique angle across a Gaussian mode optical standing wave. Sorting is

Development and evaluation of interface-stabilized and reactive-sputtered oxide-capped multilayers for EUV lithography

March 16, 2015
Author(s)
Michael Kriese, Jim Rodriguez, Gary Fournier, Steven Grantham, Shannon B. Hill, John J. Curry, Charles Tarrio, Yuriy Platonov
A critical component of high-performance EUV lithography source optics is the reflecting multilayer coating. The ideal multilayer will have both high reflectance and high stability to thermal load. Additionally the capping layers must provide resistance to

Study of CeI 3 evaporation in the presence of Group 13 metal-iodides

January 17, 2014
Author(s)
John J. Curry, Albert Henins, E. G. Estupinan, S. D. Shastri, Jonathan E. Hardis, W. P. Lapatovich
The influence of GaI$_3$, InI, and TlI on the evaporation characteristics of CeI$_3$ have been studied over the temperature range 900 K to 1400 K using x-ray induced fluorescence. The total vapor densities, summed over all atomic and molecular species, of

Enhancement of lanthanide evaporation by complexation: DyI3/InI and TmI3/TlI

September 30, 2013
Author(s)
John J. Curry, Albert Henins, Jonathan E. Hardis, E. G. Estupinan, W. P. Lapatovich, S. D. Shastri
The vapors in equilibrium with condensates of DyI$_3$, DyI$_3$/InI, TmI$_3$, and TmI$_3$/TlI have been observed over the temperature range 900 K to 1400 K using x-ray induced fluorescence. The total densities of each element (Dy, Tm, In, Tl, and I) in the

Magnetic-dipole lines in 3dn ions of high-Z elements: identification, diagnostic potential, and dielectronic resonances

September 23, 2013
Author(s)
Yuri Ralchenko, John D. Gillaspy, Joseph Reader, Dmitry D. Osin, John J. Curry, Yuri A. Podpaly
We present a review of measurements and analyses of extreme-ultraviolet magneticdipole (M1) lines in 50-60-times ionized atoms of tungsten, hafnium, tantalum, and gold with an open 3d shell. The spectra were measured with the electron beam ion trap at the

Measurement of equilibrium elemental vapor pressures using x-ray induced fluorescence

March 22, 2011
Author(s)
John J. Curry, Albert Henins, E. G. Estupinan, W. P. Lapatovich, S. D. Shastri
X-ray induced fluorescence is demonstrated as a fast and accurate method for measuring elemental vapor pressures over a wide range of pressures. As such, it may offer a preferable alternative to existing methods such as those based on effusion

Use of Phosphor Image Plates for Measuring Intensities in Vacuum Ultraviolet Spectra

January 28, 2011
Author(s)
Gillian Nave, Craig J. Sansonetti, Csilla Szabo, John J. Curry, Darren Smillie
We describe the use of phosphor image plates for recording spectra in the vacuum ultraviolet (VUV) and for determining accurate relative and absolute intensities. We investigated the spatial uniformity, noise level, linearity of the response to VUV light

Cold light from hot atoms

January 1, 2011
Author(s)
John J. Curry, G G. Lister
The introduction of rare earth atoms and molecules into lighting discharges led to great advances in efficacy of these lamps. Atoms such as Dy, Ho and Ce provide excellent radiation sources for lighting applications1, with strong radiation bands in the