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in creator/contributor: "Lester, C. S."

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Ultrahigh-brightness XeC1 laser system

A laser system that produces terawatt-level pulses of 308-nm light with near-diffraction-limited beam quality is under development. Pulses of 175-fs duration are generated at 616 nm in a synchronously-pumped mode-locked dye oscillator. These pulses are amplified in a three-stage dye amplifier longitudinally pumped by the frequency-doubled output of a regenerative Nd:YAG amplifier. Output of the dye amplifier is frequency-doubled in a BBO crystal and amplified in a chain of XeCl excimer stages. … more

Date: January 1, 1989

Creator: Gibson, R. B.; Gosnell, T. R.; Lester, C. S.; Robers, J. P.; Tallman, C. R. & Taylor, A. J.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Repetitively pulsed Cr:LiSAF laser for lidar applications

A Cr:LiSAF laser has been successfully operated at time averaged powers up to 11 W and at pulse repetition rates to 12 Hz. During Q-switch operation, output energy as high as 450 mJ (32 ns FWHM) was obtained. Finally, line narrowed Q-switched pulses (< 0.1 nm) from the Cr:LiSAF laser were successfully used as a tunable light source for lidar to measure atmospheric water content.

Date: March 1, 1994

Creator: Shimada, Tsutomu; Early, J. W.; Lester, C. S. & Cockroft, N. J.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Subpicosecond, high-brightness excimer laser systems

Subpicosecond, high-brightness excimer laser systems are being used to explore the interaction of intense coherent ultraviolet radiation with matter. Applications of current systems include generation of picosecond x-ray pulses, investigation of possible x-ray laser pumping schemes, studies of multiphoton phenomena in atomic species, and time-resolved photochemistry. These systems, based on the amplification of subpicosecond pulses in small aperture (/approximately/1 cm/sup 2/) XeCl or KrF ampl… more

Date: January 1, 1988

Creator: Taylor, A. J.; Gosnell, T. R.; Roberts, J. P.; Lester, C. S.; Gibson, R. B.; Harper, S. E. et al.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Continuously-tunable, narrow-linewidth, Q-switched Cr:LiSAF laser for lidar applications

A continuously-tunable, narrow-linewidth, flashlamp-pumped, Q-switched Cr:LiSAF laser has been developed (energy: 30 mJ, pulsewidth: 40 ns, linewidth:<2 GHz) and was used successfully for the DIAL(differential absorption lidar) measurements of atmospheric water vapor and LIF lidar for the remote detection of metal oxide fluorescence.

Date: February 1, 1995

Creator: Early, J. W.; Lester, C. S.; Quick, C. R.; Tiee, J. J.; Shimada, T. & Cockroft, N. J.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Continuously-tunable, narrow-linewidth, Q-switched Cr:LiSAF laser for lidar applications

A continuously-tunable, narrow-linewidth, flashlamp-pumped, Q-switched Cr:LiSAF laser has been developed (energy: 30 mJ, pulsewidth: 40 ns, linewidth: <2 GHz) and was used successfully for the DIAL (differential absorption lidar) measurements of atmospheric water vapor.

Date: October 1, 1994

Creator: Shimada, Tsutomu; Early, J. W.; Lester, C. S.; Quick, C. R.; Tiee, J. J. & Cockroft, N. J.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Dual-rod Cr:LiSAF oscillator/amplifier for remote sensing applications

A dual rod configuration is used to achieve 16W average power operation from a flashlamp-pumped Cr:LiSAF laser oscillator. A double-pass dual-rod amplifier configuration was used to amplify 141{mu}J pulses from a Q-switched diode-pumped LiSAF oscillator by a factor of {approximately}120. This experiment established a small signal gain of 13.4% per cm at 820 nm. Improved slope efficiency (7.4% electrical-to-light) and pulse repetition frequency (40Hz) were achieved with a single-rod oscillator u… more

Date: April 1996

Creator: Early, J. W.; Lester, C. S. & Cockroft, N. J.

Item Type: Article

Partner: UNT Libraries Government Documents Department