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High-resolution experiments on stron...

Fechner, Lutz.

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High-resolution experiments on strong-field ionization of atoms and molecules = test of tunneling theory, the role of doubly excited states, and channel-selective electron spectra /

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	High-resolution experiments on strong-field ionization of atoms and molecules/ by Lutz Fechner.
其他題名:	test of tunneling theory, the role of doubly excited states, and channel-selective electron spectra /
作者:	Fechner, Lutz.
出版者:	Cham :Springer International Publishing : : 2016.,
面頁冊數:	xiv, 151 p. :ill. (some col.), digital ;24 cm.
內容註:	Introduction -- Strong Laser Fields and Ultrashort Laser Pulses -- Ionization in Strong, Ultrashort Laser Pulses -- The Reaction Microscope -- Tunnel Ionization from a Coherent Superposition in Ar+ -- Population of Doubly Excited States in Strong Laser Pulses -- Channel-selective Electron Spectra for H2 at Different Wavelengths -- Conclusion and Outlook.
Contained By:	Springer eBooks
標題:	Ionization. -
電子資源:	http://dx.doi.org/10.1007/978-3-319-32046-5
ISBN:	9783319320465

High-resolution experiments on strong-field ionization of atoms and molecules = test of tunneling theory, the role of doubly excited states, and channel-selective electron spectra /
Fechner, Lutz.

High-resolution experiments on strong-field ionization of atoms and moleculestest of tunneling theory, the role of doubly excited states, and channel-selective electron spectra /[electronic resource] :by Lutz Fechner. - Cham :Springer International Publishing :2016. - xiv, 151 p. :ill. (some col.), digital ;24 cm. - Springer theses,2190-5053. - Springer theses..

Introduction -- Strong Laser Fields and Ultrashort Laser Pulses -- Ionization in Strong, Ultrashort Laser Pulses -- The Reaction Microscope -- Tunnel Ionization from a Coherent Superposition in Ar+ -- Population of Doubly Excited States in Strong Laser Pulses -- Channel-selective Electron Spectra for H2 at Different Wavelengths -- Conclusion and Outlook.

In this thesis, the ionization of atoms and small molecules in strong laser fields is experimentally studied using a reaction microscope. The population of autoionizing doubly excited states in the laser fields is proven and a possible connection to the well-known dielectronic recombination processes is discussed. The fundamental process of tunnel ionization in strong laser fields is subject of investigation in a pump-probe experiment with ultrashort laser pulses. A coherent superposition of electronic states in singly charged argon ions is created within the first, and subsequently tunnel-ionized with the second pulse. This gives access to state-selective information about the tunneling process and allows to test common models. Moreover, the ionization of krypton and argon at different wavelengths is studied, from the multiphoton to the tunneling regime. The wavelength-dependent investigations are furthermore extended to molecular hydrogen. In addition to ionization, this system might undergo different dissociative processes. Channel-selective electron momentum distributions are presented and compared to each other.

ISBN: 9783319320465

Standard No.: 10.1007/978-3-319-32046-5doiSubjects--Topical Terms:

712298
Ionization.

LC Class. No.: QC702

Dewey Class. No.: 530.444

High-resolution experiments on strong-field ionization of atoms and molecules = test of tunneling theory, the role of doubly excited states, and channel-selective electron spectra /
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520 $a In this thesis, the ionization of atoms and small molecules in strong laser fields is experimentally studied using a reaction microscope. The population of autoionizing doubly excited states in the laser fields is proven and a possible connection to the well-known dielectronic recombination processes is discussed. The fundamental process of tunnel ionization in strong laser fields is subject of investigation in a pump-probe experiment with ultrashort laser pulses. A coherent superposition of electronic states in singly charged argon ions is created within the first, and subsequently tunnel-ionized with the second pulse. This gives access to state-selective information about the tunneling process and allows to test common models. Moreover, the ionization of krypton and argon at different wavelengths is studied, from the multiphoton to the tunneling regime. The wavelength-dependent investigations are furthermore extended to molecular hydrogen. In addition to ionization, this system might undergo different dissociative processes. Channel-selective electron momentum distributions are presented and compared to each other.
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