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</o:shapelayout></xml><![endif]--></head><body link="#0563C1" vlink="#954F72"><div class=WordSection1><p class=MsoNormal style='text-align:justify'><a name="_Hlk69504065"></a><a name="_Hlk41995074"><span style='mso-bookmark:_Hlk69504065'><span style='font-size:12.0pt;font-family:"Cambria",serif'>Vabimo vas na 5. predavanje iz sklopa "Kolokviji na IJS" v letu 2020/21, ki bo <strong><span style='font-family:"Cambria",serif;color:red'>21. aprila 2021, ob 13. uri. </span></strong></span></span></a><span style='mso-bookmark:_Hlk69504065'><b><span style='font-size:12.0pt;font-family:"Cambria",serif'>Predavanje bo v spletnem konferenčnem sistemu Zoom in mu lahko prisostvujete tako, da v brskalnik prenesete naslov </span></b></span><a href="https://uni-lj-si.zoom.us/j/98099345188?pwd=c1M0dHdnNHVDVFc2aC90RktCUHJKUT09"><span style='mso-bookmark:_Hlk69504065'><b><span style='font-size:12.0pt;font-family:"Cambria",serif'>https://uni-lj-si.zoom.us/j/98099345188?pwd=c1M0dHdnNHVDVFc2aC90RktCUHJKUT09</span></b></span><span style='mso-bookmark:_Hlk69504065'></span></a><span style='mso-bookmark:_Hlk69504065'><b><span style='font-size:12.0pt;font-family:"Cambria",serif'>; identifikacijska stevilka sestanka je 980 9934 5188, geslo pa 876849.<o:p></o:p></span></b></span></p><p class=MsoNormal><span style='mso-bookmark:_Hlk69504065'><span style='font-size:12.0pt;font-family:"Cambria",serif'>Predavanje lahko spremljate tudi na TV IJS kanalu na spletnem naslovu </span></span><a href="http://tv.ijs.si"><span style='mso-bookmark:_Hlk69504065'><span style='font-size:12.0pt;font-family:"Cambria",serif'>tv.ijs.si</span></span><span style='mso-bookmark:_Hlk69504065'></span></a><span style='mso-bookmark:_Hlk69504065'><span style='font-size:12.0pt;font-family:"Cambria",serif'>.<o:p></o:p></span></span></p><p class=MsoNormal><span style='mso-bookmark:_Hlk69504065'><strong><span style='font-size:12.0pt;font-family:"Cambria",serif'> </span></strong></span><span style='mso-bookmark:_Hlk69504065'><span style='font-size:12.0pt;font-family:"Cambria",serif'><o:p></o:p></span></span></p><p class=MsoNormal><span style='mso-bookmark:_Hlk69504065'><span style='font-size:12.0pt;font-family:"Cambria",serif'>Napovednik predavanja najdete na naslovu </span></span><a href="http://www.ijs.si/ijsw/Koledar_prireditev"><span style='mso-bookmark:_Hlk69504065'><span style='font-size:12.0pt;font-family:"Cambria",serif;color:#954F72'>http://www.ijs.si/ijsw/Koledar_prireditev</span></span><span style='mso-bookmark:_Hlk69504065'></span></a><span style='mso-bookmark:_Hlk69504065'><span style='font-size:12.0pt;font-family:"Cambria",serif'>, posnetke preteklih predavanj<span style='color:blue'> </span>pa na </span></span><a href="http://videolectures.net/kolokviji_ijs"><span style='mso-bookmark:_Hlk69504065'><span style='font-size:12.0pt;font-family:"Cambria",serif;color:#954F72'>http://videolectures.net/kolokviji_ijs</span></span><span style='mso-bookmark:_Hlk69504065'></span></a><span style='mso-bookmark:_Hlk69504065'><span style='font-size:12.0pt;font-family:"Cambria",serif'>.<o:p></o:p></span></span></p><p class=MsoNormal align=center style='text-align:center'><span style='mso-bookmark:_Hlk69504065'><b><span lang=SL style='font-size:12.0pt;font-family:"Cambria",serif'><o:p> </o:p></span></b></span></p><p class=MsoNormal align=center style='text-align:center'><span style='mso-bookmark:_Hlk69504065'><b><span lang=SL style='font-size:12.0pt;font-family:"Cambria",serif'><o:p> </o:p></span></b></span></p><p class=MsoNormal style='text-align:justify'><span style='mso-bookmark:_Hlk69504065'><b><span style='font-size:12.0pt;font-family:"Cambria",serif'>prof. dr. Claudio Masciovecchio</span></b></span><span style='mso-bookmark:_Hlk69504065'><b><span lang=EN-US style='font-size:12.0pt;font-family:"Cambria",serif'><o:p></o:p></span></b></span></p><p class=MsoNormal style='text-align:justify'><span style='mso-bookmark:_Hlk69504065'><i><span style='font-size:12.0pt;font-family:"Cambria",serif'>Elettra Sincrotrone Trieste, Trst, Italija <o:p></o:p></span></i></span></p><p class=MsoNormal style='text-align:justify'><span style='mso-bookmark:_Hlk69504065'><i><span style='font-size:12.0pt;font-family:"Cambria",serif'><o:p> </o:p></span></i></span></p><p class=MsoNormal style='text-align:justify'><span style='mso-bookmark:_Hlk69504065'><b><span style='font-size:14.0pt;font-family:"Cambria",serif'>Nove možnosti raziskav z laserjem na proste elektrone <o:p></o:p></span></b></span></p><p class=MsoNormal style='text-align:justify'><span style='mso-bookmark:_Hlk69504065'><span lang=SL style='font-size:12.0pt;font-family:"Cambria",serif'><o:p> </o:p></span></span></p><p class=Default style='text-align:justify'><span style='mso-bookmark:_Hlk69504065'><span lang=EN-US style='font-family:"Cambria",serif'>V predavanju bomo opisali, kako je nedavni razvoj zmogljivosti laserjev na proste elektrone omogočil nelinearne eksperimente pri suboptičnih valovnih dol</span></span><span style='mso-bookmark:_Hlk69504065'><span lang=SL style='font-family:"Cambria",serif'>ž</span></span><span style='mso-bookmark:_Hlk69504065'><span lang=EN-US style='font-family:"Cambria",serif'>nah. Posebej eksperimenti s podvajanjem frekvence (SHG) in tranzientno mre</span></span><span style='mso-bookmark:_Hlk69504065'><span lang=SL style='font-family:"Cambria",serif'>ž</span></span><span style='mso-bookmark:_Hlk69504065'><span lang=EN-US style='font-family:"Cambria",serif'>ico so končno prikazali velik potencial tehnik vakuumskega mešanja ultravijolične in mehke rentgenske svetlobe. Podvajanje frekvence je eden od nelinearnih odzivov sistema, ki je prisoten le v materialih brez centra simetrije, kot so površine ali gladine. Prednosti uporabe elektronske resonance prinesejo znatno večjo površinsko specificnost kot obstoječe metode, ki slonijo na mehkih rentgenskih </span></span><span style='mso-bookmark:_Hlk69504065'><span lang=SL style='font-family:"Cambria",serif'>ž</span></span><span style='mso-bookmark:_Hlk69504065'><span lang=EN-US style='font-family:"Cambria",serif'>arkih. Eksperimenti s tranzientno mre</span></span><span style='mso-bookmark:_Hlk69504065'><span lang=SL style='font-family:"Cambria",serif'>žico </span></span><span style='mso-bookmark:_Hlk69504065'><span lang=EN-US style='font-family:"Cambria",serif'>pri suboptičnih valovnih dol</span></span><span style='mso-bookmark:_Hlk69504065'><span lang=SL style='font-family:"Cambria",serif'>ž</span></span><span style='mso-bookmark:_Hlk69504065'><span lang=EN-US style='font-family:"Cambria",serif'>inah so primerni za raziskave dinamike razurejenih sistemov in polprevodnikov na nanoskali. Z vzbujanjem fononov z nanometrsko valovno dol</span></span><span style='mso-bookmark:_Hlk69504065'><span lang=SL style='font-family:"Cambria",serif'>ž</span></span><span style='mso-bookmark:_Hlk69504065'><span lang=EN-US style='font-family:"Cambria",serif'>ino bi lahko razjasnili vrsto odprtih znanstvenih vprašanj od termičnih anomalij v steklih do transporta toplote na nanoskali. Prav raziskave transporta toplote na nanoskali so izjemnega pomena za potrebe tehnologije kot je npr. nadzor toplote pri elektronskih napravah. Mešanje mehkih rentgenskih </span></span><span style='mso-bookmark:_Hlk69504065'><span lang=SL style='font-family:"Cambria",serif'>žark</span></span><span style='mso-bookmark:_Hlk69504065'><span lang=EN-US style='font-family:"Cambria",serif'>ov pa lahko uporabimo za študij medmolekularne vibracijske dinamike pri zdravilnih učinkovinah in pri tarčah, preko katere bi lahko razumeli značilne razlike v biološki aktivnosti enantiomerov, ali za spremljanje dinamike kovinskih kompleksov. <o:p></o:p></span></span></p><h5 style='margin-top:0cm;text-align:justify'><span style='mso-bookmark:_Hlk69504065'><span lang=EN-US style='font-family:"Cambria",serif'><o:p> </o:p></span></span></h5><p class=references style='margin-bottom:0cm;margin-bottom:.0001pt;line-height:normal;mso-list:l0 level1 lfo2;text-autospace:none'><span style='mso-bookmark:_Hlk69504065'><![if !supportLists]><span lang=EN-US style='font-size:12.0pt;font-family:"Calibri",sans-serif'><span style='mso-list:Ignore'>[1]<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span lang=EN-US style='font-size:12.0pt;font-family:"Cambria",serif;color:#231F20'>R. K. Lam et al., </span></span><span style='mso-bookmark:_Hlk69504065'><span lang=EN-US style='font-size:12.0pt;font-family:"Cambria",serif'>Phys. Rev. Lett. <b>120</b>, 023901 (2018).<i><o:p></o:p></i></span></span></p><p class=references style='margin-bottom:0cm;margin-bottom:.0001pt;line-height:normal;mso-list:l0 level1 lfo2'><span style='mso-bookmark:_Hlk69504065'><![if !supportLists]><span lang=EN-US style='font-size:12.0pt;font-family:"Calibri",sans-serif'><span style='mso-list:Ignore'>[2]<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span lang=IT style='font-size:12.0pt;font-family:"Cambria",serif'>F. Bencivenga et al., Adv. </span></span><span style='mso-bookmark:_Hlk69504065'><span lang=EN-US style='font-size:12.0pt;font-family:"Cambria",serif'>Phys. <b>63</b>, 327 (2015).<o:p></o:p></span></span></p><p class=references style='margin-bottom:0cm;margin-bottom:.0001pt;line-height:normal;mso-list:l0 level1 lfo2'><span style='mso-bookmark:_Hlk69504065'><![if !supportLists]><span lang=EN-US style='font-size:12.0pt;font-family:"Calibri",sans-serif'><span style='mso-list:Ignore'>[3]<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span lang=EN-US style='font-size:12.0pt;font-family:"Cambria",serif'>F. Bencivenga et al., Sci. Adv.<b> 5</b>, 5805, (2019).<o:p></o:p></span></span></p><p class=references style='margin-bottom:0cm;margin-bottom:.0001pt;line-height:normal;mso-list:l0 level1 lfo2'><span style='mso-bookmark:_Hlk69504065'><![if !supportLists]><span lang=EN-US style='font-size:12.0pt;font-family:"Calibri",sans-serif'><span style='mso-list:Ignore'>[4]<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span lang=EN-US style='font-size:12.0pt;font-family:"Cambria",serif'>R. Mincigrucci et al., submitted.<o:p></o:p></span></span></p><p class=MsoNormal style='text-align:justify'><span style='mso-bookmark:_Hlk69504065'><span lang=SL style='font-size:12.0pt;font-family:"Cambria",serif'><o:p> </o:p></span></span></p><p class=MsoNormal style='text-align:justify'><span style='mso-bookmark:_Hlk69504065'><span lang=ES style='font-size:12.0pt;font-family:"Cambria",serif'>Predavanje bo v angleščini.<o:p></o:p></span></span></p><p class=MsoNormal style='text-align:justify'><span style='mso-bookmark:_Hlk69504065'><span lang=SL style='font-size:12.0pt;font-family:"Cambria",serif'><o:p> </o:p></span></span></p><p class=MsoNormal align=center style='text-align:center'><span style='mso-bookmark:_Hlk69504065'><b><span lang=SL style='font-size:12.0pt;font-family:"Cambria",serif'><o:p> </o:p></span></b></span></p><p class=MsoNormal align=center style='text-align:center'><span style='mso-bookmark:_Hlk69504065'><b><span lang=SL style='font-size:12.0pt;font-family:"Cambria",serif'>*******<o:p></o:p></span></b></span></p><p class=MsoNormal style='text-align:justify'><span style='mso-bookmark:_Hlk69504065'><span lang=EN-US style='font-size:12.0pt;font-family:"Cambria",serif;color:black'><o:p> </o:p></span></span></p><p class=MsoNormal style='text-align:justify'><span style='mso-bookmark:_Hlk69504065'><span style='font-size:12.0pt;font-family:"Cambria",serif;color:black'>We invite you to the 5th Institute colloquium in the academic year 2020/21. The colloquium will be held </span></span><span style='mso-bookmark:_Hlk69504065'><b><span style='font-size:12.0pt;font-family:"Cambria",serif;color:red'>on Wednesday April 21, 2021 at 1 PM</span></b></span><span style='mso-bookmark:_Hlk69504065'><span style='font-size:12.0pt;font-family:"Cambria",serif;color:red'>. </span></span><span style='mso-bookmark:_Hlk69504065'><b><span style='font-size:12.0pt;font-family:"Cambria",serif'>The colloquium will be organized online using the zoom conference platform. To attend the colloquium, please copy the </span></b></span><a href="https://uni-lj-si.zoom.us/j/98099345188?pwd=c1M0dHdnNHVDVFc2aC90RktCUHJKUT09"><span style='mso-bookmark:_Hlk69504065'><b><span style='font-size:12.0pt;font-family:"Cambria",serif'>https://uni-lj-si.zoom.us/j/98099345188?pwd=c1M0dHdnNHVDVFc2aC90RktCUHJKUT09</span></b></span><span style='mso-bookmark:_Hlk69504065'></span></a><span style='mso-bookmark:_Hlk69504065'><b><span style='font-size:12.0pt;font-family:"Cambria",serif'>; meeting ID is 980 9934 5188, password is 876849.<o:p></o:p></span></b></span></p><p class=MsoNormal style='text-align:justify'><span style='mso-bookmark:_Hlk69504065'><b><span style='font-size:12.0pt;font-family:"Cambria",serif'><o:p> </o:p></span></b></span></p><p class=MsoNormal style='text-align:justify'><span style='mso-bookmark:_Hlk69504065'><span style='font-size:12.0pt;font-family:"Cambria",serif;color:black'>To read the abstract click </span></span><a href="http://www.ijs.si/ijsw/Koledar_prireditev"><span style='mso-bookmark:_Hlk69504065'><span style='font-size:12.0pt;font-family:"Cambria",serif;color:black;text-decoration:none'>http://www.ijs.si/ijsw/Koledar_prireditev</span></span><span style='mso-bookmark:_Hlk69504065'></span></a><span style='mso-bookmark:_Hlk69504065'><span style='font-size:12.0pt;font-family:"Cambria",serif;color:black'>. Past colloquia are posted on </span></span><a href="http://videolectures.net/kolokviji_ijs"><span style='mso-bookmark:_Hlk69504065'><span style='font-size:12.0pt;font-family:"Cambria",serif'>http://videolectures.net/kolokviji_ijs</span></span><span style='mso-bookmark:_Hlk69504065'></span></a><span style='mso-bookmark:_Hlk69504065'><span style='font-size:12.0pt;font-family:"Cambria",serif;color:black'>.<o:p></o:p></span></span></p><p class=MsoNormal><span style='mso-bookmark:_Hlk69504065'><b><span lang=SL style='font-size:12.0pt;font-family:"Cambria",serif'><o:p> </o:p></span></b></span></p><p class=MsoNormal><span style='mso-bookmark:_Hlk69504065'><b><span lang=SL style='font-size:12.0pt;font-family:"Cambria",serif'><o:p> </o:p></span></b></span></p><p class=MsoNormal style='text-align:justify'><span style='mso-bookmark:_Hlk69504065'><b><span style='font-size:12.0pt;font-family:"Cambria",serif'>prof. dr. Claudio Masciovecchio </span></b></span><span style='mso-bookmark:_Hlk69504065'><b><span lang=EN-US style='font-size:12.0pt;font-family:"Cambria",serif'><o:p></o:p></span></b></span></p><p class=MsoNormal style='text-align:justify'><span style='mso-bookmark:_Hlk69504065'><i><span style='font-size:12.0pt;font-family:"Cambria",serif'>Eletrra Sincrotrone Trieste, Trieste, Italy<o:p></o:p></span></i></span></p><p class=MsoNormal style='text-align:justify'><span style='mso-bookmark:_Hlk69504065'><i><span style='font-size:12.0pt;font-family:"Cambria",serif'><o:p> </o:p></span></i></span></p><p class=MsoNormal style='text-align:justify'><span style='mso-bookmark:_Hlk69504065'><b><span style='font-size:14.0pt;font-family:"Cambria",serif'>New research opportunities with free electron lasers<o:p></o:p></span></b></span></p><p class=MsoNormal style='text-align:justify'><span style='mso-bookmark:_Hlk69504065'><b><span style='font-size:12.0pt;font-family:"Cambria",serif'><o:p> </o:p></span></b></span></p><p class=Default style='text-align:justify'><span style='mso-bookmark:_Hlk69504065'><span lang=EN-US style='font-family:"Cambria",serif'>In this talk, we will discuss how recent advances in the performance of the free electron lasers (FELs) allowed non-linear experiments at sub-optical wavelengths. In particular second harmonic generation (SHG) and transient grating (TG) experiments have finally demonstrated the high potential of vacuum ultraviolet/soft X-ray wave mixing techniques. SHG is one of the second-order non-linear responses of systems that are non-zero only for non-centrosymmetric materials as surfaces or interfaces. The advantages of using electronic resonance would imply a significantly higher surface specificity than existing soft X-ray methods. TG experiments at sub-optical wavelength are relevant for the study of nanoscale dynamics in disordered systems as well as in semiconductors. Exciting phonon modes with nanometer wavelength would allow shedding light on a plethora of scientific open problems ranging from the thermal anomalies in glasses to understanding nanoscale thermal transport. Indeed, the study of thermal transport approaching the nanometer is extremely important and motivated by relevant technological needs such as thermal management of electronic devices. Wave mixing in the soft X-ray can be used as well to investigate drug/target intermolecular vibrational dynamics, possessing the potential to understand the marked differences in biological activities of enantiomers, or easily follow the dynamics of metal complexes.<o:p></o:p></span></span></p><p class=Default style='text-align:justify'><span style='mso-bookmark:_Hlk69504065'><span lang=EN-US style='font-family:"Cambria",serif'><o:p> </o:p></span></span></p><p class=Default style='text-align:justify'><span style='mso-bookmark:_Hlk69504065'><span lang=EN-US style='font-family:"Cambria",serif'>[1] R. K. Lam et al., Phys. Rev. Lett. 120, 023901 (2018).<o:p></o:p></span></span></p><p class=Default style='text-align:justify'><span style='mso-bookmark:_Hlk69504065'><span lang=EN-US style='font-family:"Cambria",serif'>[2] F. Bencivenga et al., Adv. Phys. 63, 327 (2015).<o:p></o:p></span></span></p><p class=Default style='text-align:justify'><span style='mso-bookmark:_Hlk69504065'><span lang=EN-US style='font-family:"Cambria",serif'>[3] F. Bencivenga et al., Sci. Adv. 5, 5805, (2019).<o:p></o:p></span></span></p><p class=Default style='text-align:justify'><span style='mso-bookmark:_Hlk69504065'><span lang=EN-US style='font-family:"Cambria",serif'>[4] R. Mincigrucci et al., submitted.<o:p></o:p></span></span></p><h5 style='margin-top:0cm;text-align:justify'><span style='mso-bookmark:_Hlk69504065'><span lang=EN-US style='font-family:"Cambria",serif'><o:p> </o:p></span></span></h5><p class=MsoNormal><span style='mso-bookmark:_Hlk69504065'><span lang=SL style='font-size:12.0pt;font-family:"Cambria",serif'><o:p> </o:p></span></span></p><p class=MsoNormal><span style='mso-bookmark:_Hlk69504065'><span lang=SL style='font-size:12.0pt;font-family:"Cambria",serif'>Cordially invited!</span></span><span lang=SL style='font-size:12.0pt;font-family:"Cambria",serif'><o:p></o:p></span></p></div></body></html>