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St. Cloud State University

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Full-Text Articles in Physics

Laboratory Plasma Tests Towards The Production Of Simulated Supernova Shock Waves, Elatia Zaffke, John Sinko, Matthew Thomas, Elisha Polomski Nov 2020

Laboratory Plasma Tests Towards The Production Of Simulated Supernova Shock Waves, Elatia Zaffke, John Sinko, Matthew Thomas, Elisha Polomski

SCSU Journal of Student Scholarship

Supernovae are some of the most powerful explosions that occur in our universe. These explosions generate massive shock waves that span tens of light years in distance. They are responsible for atomic fusion that creates the denser elements, needed for the creation of planets such as our own. The goal of this project was to simulate a supernova on a small scale, in order to study the resultant shock waves and their effects upon the interstellar medium. This research can improve understanding of the impact these events have upon the formation of solar systems and the composition of the interstellar …


Laser Production And Characterization Of Zinc-Oxide Nanoparticles, Bijaya Ghorasainee, Sanjeev Regmi, John Sinko Oct 2020

Laser Production And Characterization Of Zinc-Oxide Nanoparticles, Bijaya Ghorasainee, Sanjeev Regmi, John Sinko

SCSU Journal of Student Scholarship

ZnO nanoparticles exhibit attractive optical properties that are important in the realm of catalysis and nanotechnology involving the developments of solar cells, chemical sensors and other optoelectronic devices. The main objective of this project was to create zinc oxide nanoparticles of less than 10 nm size by using an Nd: YAG laser and characterize the particle diameter. Zinc oxide nanoparticles were prepared by vaporizing zinc in neat deionized water by laser ablation, aided by a physical 2D-motional micro-stage programmed by Arduino. The addition of surfactant was explored to reduce aggregation of the nanoparticles. Various purification methods were applied to this …