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<p class=MsoNormal>Vabim vas na 1. predavanje iz sklopa "Kolokviji na
IJS" v letu 2010/11, ki bo <strong><span style='font-family:"Calibri","sans-serif";
color:red'>v sredo, 22. septembra 2010, ob 13. uri </span></strong><span
style='color:red'>v Veliki predavalnici Instituta »Jožef Stefan«</span>
na Jamovi cesti 39 v Ljubljani. Napovednik predavanja najdete tudi na naslovu <a
href="http://www.ijs.si/ijsw/Koledar_prireditev">http://www.ijs.si/ijsw/Koledar_prireditev</a>,
posnetke preteklih predavanj<span style='color:blue'> </span>pa na <a
href="http://videolectures.net/kolokviji_ijs">http://videolectures.net/kolokviji_ijs</a>.
<o:p></o:p></p>
<p class=MsoNormal>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<br>
<br>
<b><o:p></o:p></b></p>
<p class=MsoNormal><b>Prof. dr. Alfred Leitenstorfer<o:p></o:p></b></p>
<p class=MsoNormal><i>Department of Physics and Center for Applied Photonics,
University of Konstanz, D-78464 Konstanz, Germany<br>
<br>
</i><b><span style='font-size:14.0pt'><o:p></o:p></span></b></p>
<p class=MsoNormal><b><span style='font-size:14.0pt'>Quantum Physics with
Ultrabroadband and Intense Terahertz Pulses<o:p></o:p></span></b></p>
<p class=MsoNormal><i><span style='font-size:14.0pt'>Raziskovanje kvantne
fizike z močnimi širokopasovnimi teraherčnimi pulzi<o:p></o:p></span></i></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;margin-bottom:12.0pt;
text-align:justify'>Low-energy elementary excitations such as phonons,
excitons, magnons or energy gaps in semiconductor nanostructures and strongly
correlated materials are of central importance for solid-state physics. The
frequency window between 1 THz and 100 THz comprises most of these resonances.
Over the last years, phase-locked light pulses in the ultrabroadband terahertz
spectral domain have evolved into a powerful tool for probing these excitations
directly via the amplitude of the light field and on a sub-cycle time scale.
Latest advances of intense multi-THz sources generating peak electric and
magnetic fields as high as 108 MV/cm and 30 T, respectively, have now
facilitated the important step from mere observation to coherent control of
low-energy dynamics by intense THz transients. After an introduction to the
technology, typical examples of ultrabroadband and nonlinear THz studies on
complex materials, as well as first steps towards new areas of quantum optics
are presented: Sub-cycle analysis of electronic and lattice degrees of freedom
after electronic excitation of VO2 and YBa2Cu3O7-δ, coherent switching of
spin waves in NiO via the magnetic field component and non-adiabatic THz
quantum optics controlling light-matter interaction in the ultrastrong coupling
regime.<span style='font-size:12.0pt'><o:p></o:p></span></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;margin-bottom:12.0pt'><strong><span
style='font-family:"Calibri","sans-serif";color:red'>Lepo vabljeni!</span></strong><strong><span
style='font-family:"Calibri","sans-serif";font-weight:normal'><o:p></o:p></span></strong></p>
<p class=MsoNormal align=center style='text-align:center'><b><span
style='font-size:20.0pt'>***<o:p></o:p></span></b></p>
<p class=MsoNormal style='text-align:justify'><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal style='text-align:justify'><span lang=EN-US>We would like to
invite you to 1<sup>st</sup> lecture of the "Kolokvij na IJS" in the
school year 2010/11. The lecture will be held <b>on Wednesday, September 22,
2010 at 1 pm</b> at <b>JSI main lecture hall</b>, Jamova 39, Ljubljana. The
abstract of the lecture can be found on website: </span><span lang=EN-US
style='font-size:10.0pt'><a href="http://www.ijs.si/ijsw/Koledar_prireditev"><span
style='font-size:11.0pt'>http://www.ijs.si/ijsw/Koledar_prireditev</span></a></span><span
lang=EN-US>, the previous recorded lectures can be found on website: </span><span
lang=EN-US style='font-size:10.0pt'><a
href="http://videolectures.net/kolokviji_ijs"><span style='font-size:11.0pt'>http://videolectures.net/kolokviji_ijs</span></a></span><span
lang=EN-US>.</span><span lang=EN-US style='font-size:10.0pt'> </span><span
lang=EN-US><o:p></o:p></span></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
lang=EN-US>********************************************<br>
<br>
<o:p></o:p></span></p>
<p class=MsoNormal><b>Prof. dr. Alfred Leitenstorfer<o:p></o:p></b></p>
<p class=MsoNormal><i>Department of Physics and Center for Applied Photonics,
University of Konstanz, D-78464 Konstanz, Germany<br>
<br>
</i><i><o:p></o:p></i></p>
<p class=MsoNormal><b><span style='font-size:14.0pt'>Quantum Physics with
Ultrabroadband and Intense Terahertz Pulses</span></b><b><span
style='font-size:14.0pt'><o:p></o:p></span></b></p>
<p class=MsoNormal style='text-align:justify'><span lang=EN-US
style='font-size:12.0pt'><o:p> </o:p></span></p>
<p class=MsoNormal style='text-align:justify'><span lang=EN-US>Low-energy
elementary excitations such as phonons, excitons, magnons or energy gaps in
semiconductor nanostructures and strongly correlated materials are of central
importance for solid-state physics. The frequency window between 1 THz and 100
THz comprises most of these resonances. Over the last years, phase-locked light
pulses in the ultrabroadband terahertz spectral domain have evolved into a
powerful tool for probing these excitations directly via the amplitude of the
light field and on a sub-cycle time scale. Latest advances of intense
multi-THz sources generating peak electric and magnetic fields as high as 108
MV/cm and 30 T, respectively, have now facilitated the important step from mere
observation to coherent control of low-energy dynamics by intense THz
transients. After an introduction to the technology, typical examples of
ultrabroadband and nonlinear THz studies on complex materials, as well as first
steps towards new areas of quantum optics are presented: Sub-cycle analysis of
electronic and lattice degrees of freedom after electronic excitation of VO2
and YBa2Cu3O7-δ, coherent switching of spin waves in NiO via the magnetic
field component and non-adiabatic THz quantum optics controlling light-matter
interaction in the ultrastrong coupling regime.<o:p></o:p></span></p>
<p class=MsoNormal><b><span lang=EN-US style='font-size:14.0pt'><o:p> </o:p></span></b></p>
<p class=MsoNormal><b><span lang=EN-US style='font-size:14.0pt'>We look forward
to meeting you at the “Kolokvij na IJS”!<o:p></o:p></span></b></p>
<p class=MsoNormal><b><span lang=EN-US style='font-size:20.0pt'><o:p> </o:p></span></b></p>
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