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An Experimental Protocol for Femtosecond NIR/UV - XUV Pump-Probe Experiments with Free-Electron Lasers
Published on: October 23, 2018
Ultrashort-laser-pulse amplification in a XeF[C --> A] excimer amplifier.
T E Sharp1, T Hofmann, C B Dane
1Department of Electrical and Computer Engineering, Rice University, P.O. Box 1892, Houston, Texas 77251, USA.
Optics Letters
|September 23, 2009
Summary
Tunable blue-green laser pulses were amplified using an electron-beam-pumped XeF(C --> A) excimer amplifier, achieving significant small-signal gains. The amplifier demonstrated high performance even at high energy densities with minimal saturation.
Area of Science:
- Laser Physics
- Quantum Electronics
- Plasma Physics
Background:
- Excimer lasers are crucial for generating high-energy pulses.
- Achieving tunable, short-pulse amplification is essential for various scientific applications.
- Electron-beam pumping offers efficient excitation for excimer systems.
Purpose of the Study:
- To investigate the amplification characteristics of tunable blue-green subpicosecond laser pulses.
- To evaluate the performance of an electron-beam-pumped XeF(C --> A) excimer amplifier.
- To determine small-signal gain and saturation behavior at high energy densities.
Main Methods:
- Amplification of subpicosecond laser pulses in an electron-beam-pumped XeF(C --> A) excimer amplifier.
- Measurement of small-signal gain over a 50-cm active gain length.
- Characterization of amplifier performance at output energy densities up to 170 mJ/cm(2).
Main Results:
- Achieved small-signal gains of 3.5% cm(-1) with a 50-cm active gain length.
- Observed minimal saturation effects at output energy densities of 170 mJ/cm(2).
- Measured a small-signal gain of 2.5% cm(-1) at high energy densities, indicating robust amplification.
Conclusions:
- The electron-beam-pumped XeF(C --> A) excimer amplifier effectively amplifies tunable blue-green subpicosecond pulses.
- The system exhibits high gain and good saturation resistance, suitable for high-power laser applications.
- This research contributes to the development of advanced laser sources for scientific and technological advancements.
