Collision Broadening Using Alkali-Filled Hollow Core Fibers

<p>The goal of this research was to demonstrate the possibility of collision broadening in a cesium-filled hollow-core fiber as an alternative to the proven technique of pressure broadening. Theoretically alkali electrons should relax from the 2P3/2 to the 2P1/2 level and the absorption spectrum should collisionally broaden due to the presence of fiber walls as opposed to the more common pressure broadening method. An absorption dip located at 852.34nm was recorded in a pressure broadened comparison leg. This data was used as a baseline during analysis of the fiber leg's data. While the fiber was successfully exposed to the cesium under safe controlled conditions unexpected fluctuation in both the coupling efficiency and laser power levels resulted in the inability to record an absorption dip in the final data. As a result an investigation of the fundamental assumptions and theory supporting this experiment was conducted. It was discovered that the current design does not provide an adequate opportunity for cesium to make its way into the fiber core thus negating the possibility of achieving the desired collision broadening data.</p><p>This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact and remains as true to the original work as possible. Therefore you will see the original copyright references library stamps (as most of these works have been housed in our most important libraries around the world) and other notations in the work.</p><p>This work is in the public domain in the United States of America and possibly other nations. Within the United States you may freely copy and distribute this work as no entity (individual or corporate) has a copyright on the body of the work.</p><p>As a reproduction of a historical artifact this work may contain missing or blurred pages poor pictures errant marks etc. Scholars believe and we concur that this work is important enough to be preserved reproduced and made generally available to the public. We appreciate your support of the preservation process and thank you for being an important part of keeping this knowledge alive and relevant.</p>