Spatially coherent high-order harmonics generated at optimal high gas pressure with high-intensity one- or two-color laser pulses

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dc.contributor.author Jin, Cheng
dc.contributor.author Lin, Chii D.
dc.date.accessioned 2017-12-12T20:40:14Z
dc.date.available 2017-12-12T20:40:14Z
dc.date.issued 2016-10-04
dc.identifier.uri http://hdl.handle.net/2097/38445
dc.description Citation: Jin, C., & Lin, C. D. (2016). Spatially coherent high-order harmonics generated at optimal high gas pressure with high-intensity one- or two-color laser pulses. Physical Review A, 94(4), 6. doi:10.1103/PhysRevA.94.043804
dc.description.abstract We investigate the gas-pressure dependence of macroscopic harmonic spectra generated in a high-ionization medium using intense 800-nm laser pulses. The harmonics obtained at the optimal pressure show good spatial coherence with small divergence (less than 2 mrad) in the far field. By analyzing the evolution of the laser's electric field as it propagates, we find that dynamic phase matching conditions are fulfilled in the second half of the gas cell and that harmonic yields do not depend on the position of the gas cell with respect to the focusing position. We also demonstrate that harmonic yields at the optimal pressure can be further enhanced by increasing input laser energy or by adding a few percent of second or third harmonic to the fundamental.
dc.relation.uri https://doi.org/10.1103/PhysRevA.94.043804
dc.rights This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).
dc.rights.uri http://rightsstatements.org/vocab/InC/1.0/
dc.subject Water-Window Region
dc.subject X-Ray
dc.subject Attosecond Pulses
dc.subject Nonlinear Optics
dc.subject Soft
dc.subject Field
dc.title Spatially coherent high-order harmonics generated at optimal high gas pressure with high-intensity one- or two-color laser pulses
dc.type Article
dc.date.published 2016
dc.citation.doi 10.1103/PhysRevA.94.043804
dc.citation.issn 2469-9926
dc.citation.issue 4
dc.citation.jtitle Physical Review A
dc.citation.spage 6
dc.citation.volume 94
dc.contributor.authoreid cdlin
dc.contributor.kstate Lin, Chii D.


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