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</o:shapelayout></xml><![endif]--></head><body lang=SL link="#0563C1" vlink="#954F72" style='word-wrap:break-word'><div class=WordSection1><p class=MsoNormal style='margin-bottom:0cm;line-height:normal'><img width=1049 height=292 style='width:10.927in;height:3.0416in' id="Picture_x0020_1" src="cid:image001.png@01DA00D6.2A714A80"><o:p></o:p></p><p class=MsoNormal style='margin-bottom:0cm;line-height:normal'>Vabimo vas na 10. predavanje iz sklopa »Kolokviji na IJS« v akademskem letu 2023/24, ki bo <b>v sredo, 3.</b> <b>aprila 2024, ob 13:00</b> v Veliki predavalnici Instituta »Jožef Stefan« na Jamovi cesti 39 v Ljubljani. Predavanje bo <b>v slovenščini</b>. Na voljo bodo kava, pijača in prigrizki.<o:p></o:p></p><p class=MsoNormal style='margin-bottom:0cm;line-height:normal'><o:p> </o:p></p><p class=MsoNormal style='margin-bottom:0cm;line-height:normal'><o:p> </o:p></p><p class=MsoNormal style='margin-bottom:0cm;line-height:normal'><b><span lang=EN-US style='font-size:16.0pt'>Ultrahitra dinamika urejenih elektronskih stanj vzbujena s femtosekundnimi optičnimi sunki</span></b><b><span style='font-size:16.0pt'><o:p></o:p></span></b></p><p class=MsoNormal style='margin-bottom:0cm;line-height:normal'><span style='font-size:16.0pt'><o:p> </o:p></span></p><p class=MsoNormal style='margin-bottom:0cm;line-height:normal'><b><u><span lang=EN-US style='font-size:12.0pt'>doc. dr. Tomaž Mertelj</span></u></b><b><u><span style='font-size:12.0pt'><o:p></o:p></span></u></b></p><p class=MsoNormal style='margin-bottom:0cm;line-height:normal'><i>Institut »Jožef Stefan«, Ljubljana, Slovenija<o:p></o:p></i></p><p class=MsoNormal style='margin-bottom:0cm;line-height:normal'><o:p> </o:p></p><p class=MsoNormal style='margin-bottom:0cm;line-height:normal'><o:p> </o:p></p><p class=MsoNormal style='margin-bottom:0cm;line-height:normal'>Razvoj femtosekundnih sunkovnih Ti:safirnih laserjev in optičnih ojačevalnikov v osemdesetih letih dvajsetega stoletja je odprl novo dimenzijo na področju optične spektroskopije. Omogočil je optično opazovanje, pa tudi nadzor, časovne dinamike v »realnem« času na femtosekundni časovni skali, in to z visoko občutljivostjo. Vpliv je segel tudi na področje optične spektroskopije urejenih elektronskih stanj v trdni snovi. Na predavanju bom na kratko predstavil nekaj naših prispevkov k raziskavam ultrahitre dinamike v nekonvencionalnih superprevodnikih in sistemih z valom gostote naboja, dotaknil pa se bom tudi novejših raziskav magnetno urejenih sistemov.<o:p></o:p></p><p class=MsoNormal style='margin-bottom:0cm;line-height:normal'><o:p> </o:p></p><p class=MsoNormal style='margin-bottom:0cm;line-height:normal'><b>O predavatelju</b>: Tomaž Mertelj je znanstveni svetnik na Institutu »Jožef Stefan« in docent na Fakulteti za matematiko in fiziko Univerze v Ljubljani.<o:p></o:p></p><p class=MsoNormal style='margin-bottom:0cm;line-height:normal'><o:p> </o:p></p><p class=MsoNormal style='margin-bottom:0cm;line-height:normal'><o:p> </o:p></p><p class=MsoNormal style='margin-bottom:0cm;line-height:normal'><span style='font-size:10.0pt'>Napovednik predavanja in posnetke preteklih predavanj najdete na <b>novi spletni strani »Kolokvijev na IJS«</b> </span><a href="https://kolokviji.ijs.si/"><span style='font-size:10.0pt'>https://kolokviji.ijs.si/</span></a><span style='font-size:10.0pt'>, posnetke pa tudi posebej na </span><a href="https://video.arnes.si/?hashtag=Kolokviji_IJS"><span style='font-size:10.0pt'>https://video.arnes.si/?hashtag=Kolokviji_IJS</span></a><span style='font-size:10.0pt'> (zadnje tri sezone) in </span><a href="http://videolectures.net/kolokviji_ijs"><span style='font-size:10.0pt'>http://videolectures.net/kolokviji_ijs</span></a><span style='font-size:10.0pt'> (starejši).<o:p></o:p></span></p><p class=MsoNormal style='margin-bottom:0cm;line-height:normal'><o:p> </o:p></p><p class=MsoNormal style='margin-bottom:0cm;line-height:normal'>______________<o:p></o:p></p><p class=MsoNormal style='margin-bottom:0cm;line-height:normal'><o:p> </o:p></p><p class=MsoNormal style='margin-bottom:0cm;line-height:normal'><o:p> </o:p></p><p class=MsoNormal style='margin-bottom:0cm;line-height:normal'>We invite you to the 10th lecture in the framework of »JSI Colloquia« in the academic year 2023/24, which will take place on <b>Wednesday, April 3, 2024, at 1:00 PM</b> in the main lecture hall of Jožef Stefan Institute, Jamova cesta 39 in Ljubljana. The lecture will be held <b>in Slovenian</b>. Coffee, drinks and snacks will be available.<o:p></o:p></p><p class=MsoNormal style='margin-bottom:0cm;line-height:normal'><o:p> </o:p></p><p class=MsoNormal style='margin-bottom:0cm;line-height:normal'><o:p> </o:p></p><p class=MsoNormal style='margin-bottom:0cm;line-height:normal'><b><span style='font-size:16.0pt'>Ultrafast dynamics of electronically ordered states excited by femtosecond optical pulses<o:p></o:p></span></b></p><p class=MsoNormal style='margin-bottom:0cm;line-height:normal'><span style='font-size:16.0pt'><o:p> </o:p></span></p><p class=MsoNormal style='margin-bottom:0cm;line-height:normal'><b><u><span style='font-size:12.0pt'>Asst. Prof. Dr. </span></u></b><b><u><span lang=EN-US style='font-size:12.0pt'>Tomaž Mertelj</span></u></b><b><u><span style='font-size:12.0pt'><o:p></o:p></span></u></b></p><p class=MsoNormal style='margin-bottom:0cm;line-height:normal'><i>Jožef Stefan Institute, Ljubljana, Slovenia<o:p></o:p></i></p><p class=MsoNormal style='margin-bottom:0cm;line-height:normal'><o:p> </o:p></p><p class=MsoNormal style='margin-bottom:0cm;line-height:normal'><o:p> </o:p></p><p class=MsoNormal style='margin-bottom:0cm;line-height:normal'>Development of femtosecond pulsed Ti:saphire lasers and amplifiers in the 1980s opened a new dimension in the field of optical spectroscopy. It became possible to optically observe, and control, the “real-time” temporal dynamics on the femtosecond time scale, with high sensitivity. The influence also reached the field of optical spectroscopy of electronically ordered states in solid state. In the talk, I will briefly present some of our contributions to the investigations of ultrafast dynamics in unconventional superconductors and charge-density wave systems, as well as quite recent investigations of magnetically ordered systems.<o:p></o:p></p><p class=MsoNormal style='margin-bottom:0cm;line-height:normal'><o:p> </o:p></p><p class=MsoNormal style='margin-bottom:0cm;line-height:normal'><b>About the lecturer</b>: Tomaž Mertelj is a scientific councilor at the Jožef Stefan Institute and an assistant professor at the Faculty of Mathematics and Physics, University of Ljubljana.<o:p></o:p></p><p class=MsoNormal style='margin-bottom:0cm;line-height:normal'><o:p> </o:p></p><p class=MsoNormal style='margin-bottom:0cm;line-height:normal'><o:p> </o:p></p><p class=MsoNormal style='margin-bottom:0cm;line-height:normal'><span style='font-size:10.0pt'>The lecture trailer and recordings of past lectures can be found on the <b>new website of »JSI colloquia«</b></span> <a href="https://kolokviji.ijs.si/"><span style='font-size:10.0pt'>https://kolokviji.ijs.si/</span></a><span style='font-size:10.0pt'>, and recordings specifically at </span><a href="https://video.arnes.si/en/?hashtag=Kolokviji_IJS"><span style='font-size:10.0pt'>https://video.arnes.si/en/?hashtag=Kolokviji_IJS</span></a><span style='font-size:10.0pt'> (last three seasons) and </span><a href="http://videolectures.net/kolokviji_ijs"><span style='font-size:10.0pt'>http://videolectures.net/kolokviji_ijs</span></a><span style='font-size:10.0pt'> (older).<o:p></o:p></span></p><p class=MsoNormal style='margin-bottom:0cm;line-height:normal'><o:p> </o:p></p><p class=MsoNormal style='margin-bottom:0cm;line-height:normal'><o:p> </o:p></p></div></body></html>