Non-linear effects during interaction of femtosecond doughnut-shaped laser pulses with glasses: overcoming intensity clamping

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F17%3A00481457" target="_blank" >RIV/68378271:_____/17:00481457 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1117/12.2265307" target="_blank" >http://dx.doi.org/10.1117/12.2265307</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1117/12.2265307" target="_blank" >10.1117/12.2265307</a>

Result language
angličtina
Original language name
Non-linear effects during interaction of femtosecond doughnut-shaped laser pulses with glasses: overcoming intensity clamping
Original language description
Interaction of femtosecond laser pulses with a bulk glass (fused silica as an example) has been studied numerically based on non-linear Maxwell's equations supplemented by the hydrodynamics-type equations for free electron plasma for the cases of Gaussian linearly-polarized and doughnut-shaped radially-polarized laser beams. For Gaussian pulses focused inside glass (800 nm wavelength, 45 fs duration, numerical aperture of 0.25), the free electron density in the laser-excited region remains subcritical while the locally absorbed energy density does not exceed similar to 2000 J/cm(3) in the range of pulse energies of 200 nJ -2 mu J. For doughnut-shaped pulses, the initial high-intensity ring of light is shrinking upon focusing.
Czech name
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Czech description
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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