A Miniature Permanent Magnet Assembly with Localized and Uniform Field with an Application to Optical Pumping of Helium (open access)

A Miniature Permanent Magnet Assembly with Localized and Uniform Field with an Application to Optical Pumping of Helium

Article using simulations and experimental measurements to design, build, and test a compact and uniform magnetic field source and then apply it to the optical pumping of atomic helium.
Date: September 24, 2021
Creator: Cameron, Garnet; Cuevas, Jonathan; Pound, Jeffrey Jr. & Shiner, David
System: The UNT Digital Library
The Stability of Metallic MoS₂ Nanosheets and Their Property Change by Annealing (open access)

The Stability of Metallic MoS₂ Nanosheets and Their Property Change by Annealing

This article focuses on the effects of mild annealing on the structural and physical properties of the MoS₂ by heating the nanosheets in air and vacuum up to 350 °C. It was found that the annealing leads to an increase in resistivity for the nanosheets by 3 orders of magnitude, the appearance of two absorption bands in the visible range, and a hydrophilic to hydrophobic change in the surface wetting properties. Overall, this study provides another way to control the electrical, optical, and surface properties of MoS₂ nanosheets for fulfilling the needs of various applications.
Date: September 24, 2019
Creator: Li, Li; Chen, Jiyang; Wu, Keyue; Cao, Chunbin; Shi, Shiwei & Cui, Jingbiao
System: The UNT Digital Library
Direct Measurement of Group Delay Dispersion in Metamagnetics for Ultrafast Pulse Shaping (open access)

Direct Measurement of Group Delay Dispersion in Metamagnetics for Ultrafast Pulse Shaping

This article explores the use of magnetic resonant metamaterials, so called metamagnetics, as dispersive elements for optical pulse shaping.
Date: September 24, 2012
Creator: Brown, Dean P.; Walker, Mark A.; Urbas, Augustine M.; Kildishev, Alexander V.; Xiao, Shumin & Drachev, Vladimir P.
System: The UNT Digital Library