Interferometric investigations of dynamics and parameters of plasma created by Ti:Sa femtosecond laser.

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F17%3A00482818" target="_blank" >RIV/61389021:_____/17:00482818 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Interferometric investigations of dynamics and parameters of plasma created by Ti:Sa femtosecond laser.

Original language description

This contribution presents the first interferometric measurements of laser–produced plasma generated by the Ti:Sa high power laser (10 TW) installed in IPPLM (Institute of Plasma Physics and Laser Microfusion). The aim of the study was to learn the character of the plasma expansion and ions emission for different irradiation conditions of thin-foil targets. Measurements were carried out for different levels of laser beam intensity in the range of 1016- 1019 W/cm2, which was achieved by varying a focal spot radius, by changing the focus position of the main lens in relation to the target surface. To illustrate the plasma expansion and to obtain information about the space-time changes in the electron density of the plasma stream, the 2-frame folding wave interferometer was used. This interferometer was irradiated by Ti:Sa laser pulse with wavelength of 812 nm and FWHMnof 40 fs, separated from the main laser beam (Fig.1). To obtain space and temporal separation of the diagnostic beams, the polarizing optical delay line was applied, which irradiated the interferometer by 2 laser beams, separated in time, with mutually orthogonal polarizations. Additionally, measurements of ions emission by means of the grid collectors for different focusnposition were carried out (Fig.4). The obtained information about the dynamics of the parameters of plasma generated in thenfemtosecond regime seems to be very useful in studies of of the proton streams by the TNSA (Target Normal Sheath Acceleration).n

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

10305 - Fluids and plasma physics (including surface physics)

Project

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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

Article name in the collection

EPS 2017: 44th European Physical Society Conference on Plasma Physics

ISBN

979-10-96389-07

ISSN

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e-ISSN

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Number of pages

4

Pages from-to

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Publisher name

European Physical Society

Place of publication

Mulhouse

Event location

Belfast

Event date

Jun 26, 2017

Type of event by nationality

EUR - Evropská akce

UT code for WoS article

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