AmpliHcation of spontaneous emissions at 19.6,23.2 and 23.6 nm have been observed by a “ultiple-Target Series Coupling”design in Ge plasma,.The combined length for four targets is up to 56mm.The gain length product(...AmpliHcation of spontaneous emissions at 19.6,23.2 and 23.6 nm have been observed by a “ultiple-Target Series Coupling”design in Ge plasma,.The combined length for four targets is up to 56mm.The gain length product(GL)of small signal is up to 18 for both lines at 23.2 and 23.6 nmt and the effective GL is 16.4 and 15.7 for these two lines respectively.This two lines are obviously tending to saturation.The divergence of x-ray laser beam is about 4 mrad.展开更多
By means of a novel experimental design named the 'double target coupling', the ampli-fications of five lasing lines with wavelengths at 19.6, 23.2, 23.6, 24.7 and 28.6 nm fromthe 3p-3s transitions in Ne-like ...By means of a novel experimental design named the 'double target coupling', the ampli-fications of five lasing lines with wavelengths at 19.6, 23.2, 23.6, 24.7 and 28.6 nm fromthe 3p-3s transitions in Ne-like Ge plasmas were observed. The germanium slab targets wereirradiated by two opposite line-focused laser beams with the irradiance of 1.2×10^(13) W/cm^2.The values of GL (a gain-length product) for the lines at 23.2 and 23.6 nm exceed 13. Themeasurements of temporal resolution for the lasing lines were made with a soft X-ray streakcamera, and the measured results are presented. The divergence and refraction of X-ray laserbeam were also observed.展开更多
基金Supported by the Laser Domain of the Chinese National High Technology Plan。
文摘AmpliHcation of spontaneous emissions at 19.6,23.2 and 23.6 nm have been observed by a “ultiple-Target Series Coupling”design in Ge plasma,.The combined length for four targets is up to 56mm.The gain length product(GL)of small signal is up to 18 for both lines at 23.2 and 23.6 nmt and the effective GL is 16.4 and 15.7 for these two lines respectively.This two lines are obviously tending to saturation.The divergence of x-ray laser beam is about 4 mrad.
文摘By means of a novel experimental design named the 'double target coupling', the ampli-fications of five lasing lines with wavelengths at 19.6, 23.2, 23.6, 24.7 and 28.6 nm fromthe 3p-3s transitions in Ne-like Ge plasmas were observed. The germanium slab targets wereirradiated by two opposite line-focused laser beams with the irradiance of 1.2×10^(13) W/cm^2.The values of GL (a gain-length product) for the lines at 23.2 and 23.6 nm exceed 13. Themeasurements of temporal resolution for the lasing lines were made with a soft X-ray streakcamera, and the measured results are presented. The divergence and refraction of X-ray laserbeam were also observed.
