Publications by authors named "Matthew B Squires"
Article Synopsis
- The study discusses the development and evaluation of rubidium vapor dispensers made from highly oriented pyrolytic graphite (HOPG) intercalated with rubidium.
- These IHOPG dispensers outperform traditional chromate salt dispensers by holding significantly more rubidium, using less heating power, and producing fewer impurities.
- The findings indicate that IHOPG can remain stable for over ninety minutes when exposed to air and hint at the possibility of creating similar dispensers using other alkali metals like cesium, potassium, and lithium.
We present the use of direct bonded copper (DBC) for the straightforward fabrication of high power atom chips. Atom chips using DBC have several benefits: excellent copper/substrate adhesion, high purity, thick (>100 μm) copper layers, high substrate thermal conductivity, high aspect ratio wires, the potential for rapid (<8 h) fabrication, and three-dimensional atom chip structures. Two mask options for DBC atom chip fabrication are presented, as well as two methods for etching wire patterns into the copper layer.
View Article and Find Full Text PDFTowards High Accuracy Reflectometry for Extreme-Ultraviolet Lithography.
J Res Natl Inst Stand Technol
July 2016
Currently the most demanding application of extreme ultraviolet optics is connected with the development of extreme ultraviolet lithography. Not only does each of the Mo/Si multilayer extreme-ultraviolet stepper mirrors require the highest attainable reflectivity at 13 nm (nearly 70 %), but the central wavelength of the reflectivity of these mirrors must be measured with a wavelength repeatability of 0.001 nm and the peak reflectivity of the reflective masks with a repeatability of 0.
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