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oai:www.ideals.illinois.edu:2142/69337 2023-07-11 col_2142_5131 col_2142_8888 com_2142_5130 com_2142_8887 com_2142_234

Fanning, James Jay 2014-12-15T19:05:09Z 2014-12-15T19:05:09Z 10000-01-01 1985 1985 A detailed investigation of the luminescent characteristics of a Mather-type dense plasma focus (MDPF) is performed. In addition, for the first time, the MDPF is utilized as an optical pump source for lasers. The main MDPF radiation output is a continuum emission created by intense high-energy electron bombardment of the beam-target material in the top of the center electrode. For a high atomic weight beam-target material, peak emission occurs from 5 to 10 eV. The long-wavelength tail of the continuum extends into the visible region up to 600 nm. Electrical-to-optical conversion efficiency in the 115-to-600 nm wavelength region is measured to be greater than 50%. Improvements in the MDPF's electrode design increase its versatility by showing successful low voltage operation at 5 kV. The first practical use of the MDPF's radiation was to photolytically pump organic dye lasers. In a proof-of-principle experiment rhodamine 6G dye is employed to generate a 250 mJ/cm('3) laser energy density. Due to its intense vacuum ultraviolet (VUV) emission, the MDPF is an ideal candidate for optically pumping very-short-wavelength lasers. The hard and soft X-ray emissions as well as the VUV output of the MDPF also make it a viable high-intensity source for high-throughput microlithography processes. Made available in DSpace on 2014-12-15T19:05:09Z (GMT). No. of bitstreams: 1 8622560.pdf: 4315290 bytes, checksum: c9c151d7665e8e750f4a7c424d9ce341 (MD5) Previous issue date: 1985 Embargo set by: Seth Robbins for item 69503 Lift date: Forever Reason: Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs U of I Only 137 p. Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 1985. http://hdl.handle.net/2142/69337 (UMI)AAI8622560 Engineering, Electronics and Electrical Luminescent Characteristics Study of a Mather-Type Dense Plasma Focus and Application to Laser Optical Pumping text Electrical Engineering Electrical Engineering University of Illinois at Urbana-Champaign Dissertation Ph.D.