Spectral filtering of high-order harmonics via optics-free focusing

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F21%3A00546698" target="_blank" >RIV/68378271:_____/21:00546698 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21340/21:00356304
Result on the web
<a href="http://hdl.handle.net/11104/0323782" target="_blank" >http://hdl.handle.net/11104/0323782</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1364/OE.436086" target="_blank" >10.1364/OE.436086</a>

Result language
angličtina
Original language name
Spectral filtering of high-order harmonics via optics-free focusing
Original language description
Controlling the wavefront of an extreme ultraviolet (XUV) high-order harmonic beam during the generation process offers the capability of modifying the beam properties without resorting to any XUV optics. By characterizing the XUV intensity profile and wavefront, we quantitatively retrieve both the size and the position of the waist of each harmonic generated in an argon jet. We show that optics-free focusing can occur under specific generating conditions leading to XUV focii of micrometer size. We also demonstrate that each focus is located at distinct longitudinal positions. Using this remarkable XUV wavefront control combined with near focus spatial selection, we experimentally demonstrate efficient and adjustable spectral filtering of the XUV beam, along with a strong rejection of the fundamental beam, without using any XUV optics.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10306 - Optics (including laser optics and quantum optics)

Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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