| Paper |
Title |
Page |
| MOAAU05 |
The First Lasing of 193 nm SASE, 4th Harmonic HGHG and ESASE at the NSLS SDL
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18 |
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- X. J. Wang, J. B. Murphy, J. Rose, Y. Shen, T. Tsang, T. Watanabe
BNL, Upton, Long Island, New York
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After successfully achieving SASE lasing at 198 nm on April 20, 2006, we have also observed the first 4th harmonic High Gain Harmonic Generation (HGHG) with a 795 nm seed laser. We will report the progress and experimental characterization of the 198 nm SASE and 4th harmonic HGHG.
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Slides
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Talk
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| MOPPH065 |
The First Experimental Observation of FEL Amplifier Efficiency Improvement using Electron Beam Energy Detuning at the NSLS SDL
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190 |
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- T. Watanabe, J. B. Murphy, J. Rose, Y. Shen, T. Tsang, X. J. Wang
BNL, Upton, Long Island, New York
- H. Freund
SAIC, McLean
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We report on the first observation of efficiency enhancement in a single-pass laser seeded FEL amplifier by detuning electron beam energy away from resonance. The dependence of the output FEL energy on the electron energy was measured; a maximum and average enhancement of 100 % and 70 % were observed. The spectral output of the seeded FEL both with and without an energy detuning was also measured. It was verified that the peak wavelength was dominated by the seed laser. The experimental results are compared with the analytical theory and the numerical simulation code, GENESIS 1.3.
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