<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; color: rgb(0, 0, 0); font-size: 14px; font-family: Calibri, sans-serif; "><div><br></div><span id="OLK_SRC_BODY_SECTION"><div xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><div lang="EN-US" link="blue" vlink="purple"><div class="WordSection1"><p class="MsoNormal"><o:p> </o:p></p><p class="MsoNormal" align="center" style="mso-margin-top-alt:auto;margin-bottom:6.0pt;text-align:center;line-height:18.0pt"><a name="_Toc434675189"><b><span style="font-size: 14pt; font-family: 'Times New Roman', serif; color: black; ">MS THESIS DEFENSE STUDENT: </span></b></a><span style="font-size: 14pt; font-family: 'Times New Roman', serif; color: black; ">Eduardo
Hernandez</span><span style="font-size: 14pt; font-family: 'Times New Roman', serif; color: black; "><o:p></o:p></span></p><p class="MsoNormal" align="center" style="mso-margin-top-alt:auto;margin-bottom:6.0pt;text-align:center;line-height:18.0pt"><b><span style="font-size: 14pt; font-family: 'Times New Roman', serif; color: black; ">DATE: </span></b><span style="font-size: 14pt; font-family: 'Times New Roman', serif; color: black; ">Monday, <b></b>May 2, 2016</span><span style="font-size: 14pt; font-family: 'Times New Roman', serif; color: black; "><o:p></o:p></span></p><p class="MsoNormal" align="center" style="mso-margin-top-alt:auto;margin-bottom:6.0pt;text-align:center;line-height:18.0pt"><b><span style="font-size: 14pt; font-family: 'Times New Roman', serif; color: black; ">TIME: </span></b><span style="font-size: 14pt; font-family: 'Times New Roman', serif; color: black; ">4:00 PM</span><span style="font-size: 14pt; font-family: 'Times New Roman', serif; color: black; "><o:p></o:p></span></p><p class="MsoNormal" align="center" style="mso-margin-top-alt:auto;margin-bottom:6.0pt;text-align:center;line-height:18.0pt"><b><span style="font-size: 14pt; font-family: 'Times New Roman', serif; color: black; ">PLACE: </span></b><span style="font-size: 14pt; font-family: 'Times New Roman', serif; color: black; ">Chemical Engineering
Conference Room</span><span style="font-size: 14pt; font-family: 'Times New Roman', serif; color: black; "><o:p></o:p></span></p><p class="MsoNormal" align="center" style="mso-margin-top-alt:auto;margin-bottom:6.0pt;text-align:center;line-height:18.0pt"><b><span style="font-size: 14pt; font-family: 'Times New Roman', serif; color: black; ">DISSERTATION CHAIRS: </span></b><span style="font-size: 14pt; font-family: 'Times New Roman', serif; color: black; ">Dr. Vincent
Donnelly and Dr. Demetre Economou</span><span style="font-size: 14pt; font-family: 'Times New Roman', serif; color: black; "><o:p></o:p></span></p><div class="MsoNormal" align="center" style="text-align:center;line-height:115%"><b><span style="font-size: 14pt; line-height: 115%; font-family: 'Times New Roman', serif; color: black; "><hr size="2" width="100%" align="center"></span></b></div><p class="MsoNormal" align="center" style="margin-bottom:10.0pt;text-align:center;line-height:115%"><b><span style="font-size: 14pt; line-height: 115%; font-family: 'Times New Roman', serif; color: black; ">TITLE:<o:p></o:p></span></b></p><p class="MsoNormal" align="center" style="margin-bottom:10.0pt;text-align:center;line-height:115%"><b><span style="font-size: 14pt; line-height: 115%; font-family: 'Times New Roman', serif; color: black; ">Optical Emission Diagnostics of a Non-equilibrium Atmospheric Pressure Helium Plasma Jet Issuing in Ambient Air <o:p></o:p></span></b></p><p class="MsoNormal" align="center" style="margin-bottom:10.0pt;text-align:center;line-height:115%"><b><span style="font-size: 14pt; line-height: 115%; font-family: 'Times New Roman', serif; color: black; "><o:p> </o:p></span></b></p><p class="MsoNormal" style="text-align:justify;text-indent:.5in;line-height:200%"><span style="font-size: 12pt; line-height: 200%; font-family: 'Times New Roman', serif; ">Non-thermal atmospheric pressure plasmas are increasingly attracting more attention from the scientific community for their potential use in surface treatment and biomedical
applications. Even though considerable progress has been made, investigation of the species generated at close proximity (1 mm to ~100 nm) to a surface has not been addressed due to limitations of common optical techniques. A novel approach using Optical Emission
Spectroscopy (OES) that can probe emissions over this distance away from the surface has been investigated. Additionally, the presence of high energy VUV photons was confirmed and these can play an important role in the propagation of plasma jets. By performing
temporally resolved OES, it was determined that excitation of O, N, OH, NO and N<sub>2</sub><sup>+</sup> is predominantly due to collisions between He* and their precursors, whereas the N<sub>2</sub> emissions are due to electron impact ionization that produces
electronically excited N<sub>2</sub>.<b><span style="color:red"><o:p></o:p></span></b></span></p><p class="MsoNormal"><o:p> </o:p></p></div></div></div></span><style><!--
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