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Books > Science & Mathematics > Physics > States of matter > Plasma physics
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Neutral Atom Imaging Using a Pulsed Electromagnetic Lens (Hardcover, 1st ed. 2018)
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Neutral Atom Imaging Using a Pulsed Electromagnetic Lens (Hardcover, 1st ed. 2018)
Series: Springer Theses
Expected to ship within 10 - 15 working days
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This book describes the design, construction, and characterization
of a new type of aberration-corrected, neutral-atom lens. Atom beam
control plays a crucial role in many different fields, ranging from
fundamental physics research and materials science to applied
nanotechnology. Despite this, atom-optical elements like lenses and
mirrors remain relatively underdeveloped compared to their
counterparts in other optics fields. Although aberration correction
is addressed quite comprehensively in photon and electron lenses,
no credible research efforts have yet produced the same technology
for neutral atoms. It reports on progress towards a neutral atom
imaging device that will be useful in a range of applications,
including nanofabrication and surface microscopy. It presents a
novel technique for improving refractive power and correcting
chromatic aberration in atom lenses based on a fundamental paradigm
shift from continuous, two-dimensional focusing to a pulsed,
three-dimensional approach. Simulations of this system suggest that
it will pave the way towards the long-sought goal of true atom
imaging on the nanoscale. The book further describes the
construction of a prototype lens, and shows that all of the
technological requirements for the proposed system are easily
satisfied. Using metastable neon from a supersonic source, the
prototype was characterized for three different focal lengths and a
diverse range of apertures. Despite some manufacturing
imperfections, lower distortion and higher resolution than has been
shown in any previous hexapole lens was observed. Comparison with
simulations corroborates the underlying theory and encourages
further refinement of the process.
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