Extreme ultraviolet frequency combs for precision measurement and strong-field physics
Author | |
Abstract |
<p>The extreme ultraviolet (XUV) is a relatively unexplored spectral region for high-resolution\ <span style="line-height: 1.6em;">laser spectroscopy. Many atomic and molecular systems of fundamental interest lie in wait of\ </span><span style="line-height: 1.6em;">investigation, but the lack of highly coherent sources has forgone the ability to experiment. The XUV\ </span><span style="line-height: 1.6em;">frequency comb offers exciting new frontiers for fundamental physics and measurement science by\ </span><span style="line-height: 1.6em;">enabling direct and highly coherent laser access to the XUV. Prior to 2012, our group demonstrated\ </span><span style="line-height: 1.6em;">the best levels of phase coherence in the XUV at the 10 MHz level and the most powerful XUV\ </span><span style="line-height: 1.6em;">light source originating from high-order harmonic generation with powers of 220 W/harmonic.\ </span><span style="line-height: 1.6em;">The work in this thesis improves upon both of these metrics demonstrating coherence at the 62.5\ </span><span style="line-height: 1.6em;">mHz level (eight orders of magnitude improvement) and power levels approaching 1 mW/harmonic\ </span><span style="line-height: 1.6em;">(five times improvement). Our work shows that it is possible to produce XUV light with coherence\ </span><span style="line-height: 1.6em;">properties that rival that of visible light using the high-order harmonic generation process.</span></p>
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Year of Publication |
2016
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Degree |
Ph.D.
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Number of Pages |
192
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Date Published |
05-2016
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University |
University of Colorado Boulder
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City |
Boulder, CO
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JILA PI Advisors | |
Benko_Thesis.pdf11.8 MB
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Publication Status |