91 citations · 202 across the 7 of their papers we have counts for
7 papers
Roadmap for focused ion beam technologies
Katja Höflich, Gerhard Hobler, Frances I. Allen +29
The focused ion beam (FIB) is a powerful tool for the fabrication, modification and characterization of materials down to the nanoscale. Starting with the gallium FIB, which was or…
Fabrication of Specimens for Atom Probe Tomography Using a Combined Gallium and Neon Focused Ion Beam Milling Approach
Frances I. Allen, Paul T. Blanchard, Russell Lake +6
We demonstrate a new focused ion beam sample preparation method for atom probe tomography. The key aspect of the new method is that we use a neon ion beam for the final tip-shaping…
Defect engineering of silicon with ion pulses from laser acceleration
Walid Redjem, Ariel J. Amsellem, Frances I. Allen +27
Defect engineering is foundational to classical electronic device development and for emerging quantum devices. Here, we report on defect engineering of silicon single crystals wit…
Fast Grain Mapping with Sub-Nanometer Resolution Using 4D-STEM with Grain Classification by Principal Component Analysis and Non-Negative Matrix Factorization
Frances I Allen, Thomas C Pekin, Arun Persaud +5
High-throughput grain mapping with sub-nanometer spatial resolution is demonstrated using scanning nanobeam electron diffraction (also known as 4D scanning transmission electron mi…
Key mechanistic features of swelling and blistering of helium-ion-irradiated tungsten
Frances I. Allen, Peter Hosemann, Mehdi Balooch
Helium-ion-induced swelling and blistering of single-crystal tungsten is investigated using a Helium Ion Microscope for site-specific dose-controlled irradiation (at 25 keV) with a…
High refractive index Fresnel lens on a fiber fabricated by nanoimprint lithography for immersion applications
Alexander Koshelev, Giuseppe Calafiore, Carlos Piña-Hernandez +7
In this Letter we present a Fresnel lens fabricated on the end of an optical fiber. The lens is fabricated using nanoimprint lithography of a functional high refractive index mater…
Nanoimprint of a 3D structure on an optical fiber for light wavefront manipulation
Giuseppe Calafiore, Alexander Koshelev, Frances I. Allen +6
Integration of complex photonic structures onto optical fiber facets enables powerful platforms with unprecedented optical functionalities. Conventional nanofabrication technologie…