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Detailed measurements and shaping of gate profiles for microchannel-plate-based X-ray framing cameras

Description: Gated, microchannel-plate-based (MCP) framing cameras are increasingly used worldwide for x-ray imaging of subnanosecond laser-plasma phenomena. Large dynamic range (> 1,000) measurements of gain profiles for gated microchannel plates (MCP) are presented. Temporal profiles are reconstructed for any point on the microstrip transmission line from data acquired over many shots with variable delay. No evidence for significant pulse distortion by voltage reflections at the ends of the microstrip is … more
Date: October 3, 1994
Creator: Landen, O. L.; Hammel, B. A.; Bell, P. M.; Abare, A. & Bradley, D. K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Long wavelength GaN blue laser (400-490nm) development

Description: Room temperature (RT) pulsed operation of blue nitride based multi-quantum well (MQW) laser diodes grown on c-plane sapphire substrates was achieved. Atmospheric pressure MOCVD was used to grow the active region of the device which consisted of a 10 pair In{sub 0.21}Ga{sub 0.79}N (2.5nm)/In{sub 0.07}Ga{sub 0.93}N (5nm) InGaN MQW. The threshold current density was reduced by a factor of 2 from 10 kA/cm{sup 2} for laser diodes grown on sapphire substrates to 4.8 kA/cm{sub 2} for laser diodes grow… more
Date: October 26, 2000
Creator: DenBaars, S. P.; Abare, A.; Sink, K.; Kozodoy, P.; Hansen, M.; Bowers, J. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Analysis of neon soft x-ray spectra from short-pulse laser-produced plasmas

Description: We report preliminary results from the analysis of streaked soft x-ray neon spectra obtained from the interaction of a picosecond Nd:glass laser with a gas jet target. In these experiments streaked spectra show prompt harmonic emission followed by longer time duration soft x-ray line emission. The majority of the line emission observed was found to originate from Li- and Be-like Ne and the major transitions in the observed spectra have been identified. Li-like emission lines were observed to de… more
Date: April 1, 1993
Creator: Abare, A. C.; Keane, C. J.; Crane, J. K.; DaSilva, L. B.; Lee, R. W.; Perry, M. D. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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