Angela Shields
Marshall Space Flight Center
6 Papers
6 Citations
Angela Shields is an academic researcher from Marshall Space Flight Center. The author has contributed to research in topics: Optical switch & Solubility. The author has an hindex of 3, co-authored 5 publications.
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Papers
Solvent effects and polymorphic transformation of organic nonlinear optical crystal L-pyroglutamic acid in solution growth processes: I. Solvent effects and growth morphology
W. S. Wang,Mohan D. Aggarwal,J. Choi,Tesfaye Gebre,Angela Shields,Benjamin G. Penn,Donald O. Frazier +6 more
TL;DR: In this article, single crystals of a new promising nonlinear optical material for the tunable UV harmonic generation, l -pyroglutamic acid 60×20×20mm 3 in size were obtained from aqueous solution by using the temperature-lowering method.
65
Continuous-wave laser beam fanning in organic solutions: a novel phenomenon.
Hossin A. Abdeldayem,William K. Witherow,Angela Shields,Benjamin G. Penn,Donald O. Frazier,Mehdi Moghbel,Putcha Venkateswarlu,P. Chandra Sekhar,M. C. George +8 more
TL;DR: If a low-power cw Ar(+) laser beam is sent horizontally and focused on the entrance side of a cuvette containing an absorptive solution, the beam fans into the lower half of the cuvette instead of propagating through and forming self-phase-modulation fringes.
6
Nonlinear optical properties of organic and polymeric thin film materials of potential for microgravity processing studies
Hossin Ahmed Abdeldayem,Donald O. Frazier,Mark Steven Paley,Benjamin G. Penn,William K. Witherow,Curtis E. Banks,Angela Shields,Rosline Hicks,Paul R. Ashley +8 more
- 12 Jul 1996
TL;DR: In this paper, the state of the art of polydiacetylene, and metal-free phthalocyanine films, in view of the microgravity impact on their optical properties, their nonlinear optical properties and their potential advantages for integrated optics.
Optical Computers and Space Technology
Hossin Ahmed Abdeldayem,Donald O. Frazier,Benjamin G. Penn,Mark S. Paley,William K. Witherow,Curtis E. Banks,Rosilen Hicks,Angela Shields +7 more
- 01 Dec 1995
TL;DR: In this paper, the authors discuss NASA's role in processing optical materials and report on some of the associated nonlinear optical properties which are quite useful for optical computers technology, and discuss how microgravity processing can induce improved orders in these materials and could have a significant impact on the development of optical computers.