2026-09-19T09:26:40Zhttps://dspace.mit.edu/server/oai/requestoai:dspace.mit.edu:1721.1/612732022-01-13T07:54:29Zcom_1721.1_7582com_1721.1_7581col_1721.1_131023
Franz X. Kärtner.
Abram, Gilberto
Massachusetts Institute of Technology. Dept. of Electrical Engineering and Computer Science.
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
2011-02-23T14:39:55Z
2011-02-23T14:39:55Z
2009
2009
http://hdl.handle.net/1721.1/61273
701927042
Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2009.
Cataloged from PDF version of thesis.
Includes bibliographical references (p. 93-94).
To produce extreme ultraviolet radiation via high harmonic generation (HHG) in rare gases, light intensities in excess of 1014 W/cm 2 are required. Usually such high intensity are obtained by parametric amplification of laser pulses, which in turn reduces the pulse repetition rate to a few kHz. Given that the HHG process is inherently inefficient, with conversion ratios less than 10-5, only a small fraction of the pulse energy is lost in the nonlinear interactions, so it is possible to enhance the pulse intensity in a passive cavity retaining the original repetition rate. I present here a novel broadband resonator design which has the potential of supporting intracavity intensities in excess of 1015 W/cm 2 while allowing the harmonic radiation to couple out of the cavity with no loss. Extensive computer simulations are performed with a custom software package, and the required mirrors have been constructed using a standard microfabrication process.
by Gilberto Abram.
M.Eng.
94 p.
eng
Massachusetts Institute of Technology
M.I.T. theses are protected by
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http://dspace.mit.edu/handle/1721.1/7582
Electrical Engineering and Computer Science.
High intensity femtosecond enhancement cavities
Thesis
application/pdf
Publication
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<Abstract>To produce extreme ultraviolet radiation via high harmonic generation (HHG) in rare gases, light intensities in excess of 1014 W/cm 2 are required. Usually such high intensity are obtained by parametric amplification of laser pulses, which in turn reduces the pulse repetition rate to a few kHz. Given that the HHG process is inherently inefficient, with conversion ratios less than 10-5, only a small fraction of the pulse energy is lost in the nonlinear interactions, so it is possible to enhance the pulse intensity in a passive cavity retaining the original repetition rate. I present here a novel broadband resonator design which has the potential of supporting intracavity intensities in excess of 1015 W/cm 2 while allowing the harmonic radiation to couple out of the cavity with no loss. Extensive computer simulations are performed with a custom software package, and the required mirrors have been constructed using a standard microfabrication process.</Abstract>
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