Narrow-band tunable extreme-ultraviolet laser source for lifetime measurements and precision spectroscopy

Narrow-band tunable extreme-ultraviolet laser source for lifetime measurements and precision spectroscopy

A narrow-band, extreme-ultraviolet laser source is developed that has continuous tunability in the range 96– 97.5 nm and a bandwidth below 250 MHz. The versatility of the radiation source is demonstrated in two applications. Accurate values for lifetimes of highly excited molecular quantum states are determined from line-broadening measurements in three electronic states of CO: W1P, v 5 0 state...

Precision Laser Spectroscopy in the Extreme Ultraviolet

Techniques for the production of short wavelengths in the extreme ultraviolet wavelength range aredescribed, spanning low-order harmonic generation in the perturbative regime for narrow bandwidth XUV productionto the plateau-regime with the three-step collisional model for the generation of high harmonics with broadband ultrafastpulses. In addition, the intermediate regime is discus...

Narrow-Band Extreme-Ultraviolet Laser Radiation Tunable in the Range 90.5-95 nm

Tunable, narrowband extreme ultraviolet radiation in the range 90.5-95 nm with only limited intensity variations is produced by frequency-tripling ultraviolet light from a frequency-doubled dye laser in a gas-jet of xenon, Acetylene gas is found to be an efficient medium for thirdharmonic generation in this wavelength range as well. The extreme-ultraviolet radiation is applied in a spectroscopi...

Laser triggered Z-pinch broadband extreme ultraviolet source for metrology

Simultaneous Measurements for Tunable Laser Source Linewidth with Homodyne Detection

The linewidth characteristics of a commercial tunable laser source (TLS) are measured experimentally employing self-homodyne detection method. Three linewidths are obtained at different operating wavelengths with two optical fiber delay lengths. It is found that a slightly higher values are obtained with a longer length of the delay fiber. The long of (50 km and 25 km) of single mode fiber SMF ...