Zobrazeno 1 - 10
of 31
pro vyhledávání: '"Robert I. Altkorn"'
Publikováno v:
Ergonomics in Design: The Quarterly of Human Factors Applications. 15:12-16
FEATURE AT A GLANCE: The determination of foreseeable use – both the unintended and intended uses of consumer products – should be central in the development of any safe product. One of the factors influencing foreseeable use is the age of the po
Publikováno v:
Applied Spectroscopy. 55:373-381
This paper develops expressions for the Raman power emitted by liquid core optical fiber (LCOF) sample cells in six simple excitation/collection geometries and the fraction of that power that can be utilized in a conventional Raman spectrometer. From
Publikováno v:
Applied Spectroscopy. 54:1837-1841
Liquid core optical fiber (LCOF) waveguides have been used to enhance the Raman sensitivity of liquid sample measurements by more than two orders of magnitude. These waveguides can also enhance photobleaching of fluorescence in transparent liquids. W
Publikováno v:
Applied Spectroscopy. 51:1554-1558
We describe a waveguide capillary cell based on a fused-silica tube coated externally with a thin layer of a low-refractive-index ( n = 1.31) fluoropolymer. When filled with a transparent liquid of refractive index greater than that of the fluoropoly
Autor:
Robert I. Altkorn
Publikováno v:
Journal of Near Infrared Spectroscopy. 5:35-40
A waveguide capillary cell (WCC) based on a small-diameter fused-silica tube coated externally with a low refractive index ( n = 1.31) fluoropolymer is described, and short-wave near infrared (700–1100 nm) spectra of low refractive index ( n = 1.33
Publikováno v:
Applied optics. 42(34)
A method of fabricating replica figured x-ray optics with integral multilayer coatings is presented. With the intact electroforming multilayer process (IEMP) technique, we sputter multilayers onto a reusable superpolished mandrel, electroform nickel
Publikováno v:
SPIE Proceedings.
The next generation of optical/IR telescopes will require large numbers of co-phased segmented mirrors. Therefore, some form of replication technology is desirable to reduce costs. Electroforming has the advantage that it is a commercially developed
Autor:
Robert I. Altkorn, M. J. Pelletier
Publikováno v:
Analytical chemistry. 73(6)
We have demonstrated a sensitivity enhancement factor of 500 in aqueous solutions using a liquid core optical fiber (LCOF) Raman cell made from Teflon-AF. We were able to collect a spectrum of 54 microM lysozyme with a signal-to-noise ratio of 31 in
Publikováno v:
SPIE Proceedings.
This paper discusses the development of a high resolution, hard x-ray telescope for imaging hard x-rays generated by energetic electrons accelerated in solar flares. We discuss the particular requirements of a hard x-ray telescope intended for solar
Autor:
Derrick C. Mancini, Michael E. Graham, Yong S. Chu, Ruediger Staubert, James R. Wilson, James L. Matteson, Paul L. Hink, Melville P. Ulmer, William A. Heindl, Anita Madan, Robert I. Altkorn, Kimberly R. Slavis, Allen S. Krieger, Duane Gruber, Richard E. Rothschild
Publikováno v:
SPIE Proceedings.
The FAR.XITE is a proposed balloon payload. After a test flight, our initial goal is to fly 10 nested mirror modules, but then even more modules can be added until the mass limit of the pointing system and balloon gondola are reached. These limits ar