<html><head><style type='text/css'>p { margin: 0; }</style></head><body><div style='font-family: arial,helvetica,sans-serif; font-size: 12pt; color: #000000'><b style="font-family: arial,helvetica,sans-serif;"><span style="font-size: 14pt; color: rgb(153, 51, 0);"></span></b><b style=""><span style="font-size: 14pt; font-family: "Century Gothic"; color: rgb(153, 51, 0);"></span></b><span style="font-family: "Century Gothic";"></span>
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<h1><span style="font-size: 16pt; color: rgb(85, 145, 60);" lang="HR"> </span></h1>
<h1><span style="font-size: 16pt; color: rgb(85, 145, 60);" lang="HR"></span></h1><p class="MsoNormal" style="margin: 3pt 0cm; text-align: center;" align="center"><b style=""><span style="font-family: "Century Gothic"; color: rgb(95, 95, 95);">Institut za
fiziku, Bijenička cesta 46,</span></b></p>
<p class="MsoNormal" style="margin: 3pt 0cm; text-align: center;" align="center"><b style=""><span style="font-family: "Century Gothic"; color: rgb(95, 95, 95);">predavaonica
u zgradi Mladen Paić</span></b></p>
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<div style="text-align: center;" align="left"><img src="http://mail.ifs.hr/service/home/%7E/?auth=co&id=26890&part=1.2.2"></div><p class="MsoNormal" style="margin: 3pt 0cm; text-align: center;" align="center"><b style=""><span style="font-family: "Century Gothic"; color: rgb(95, 95, 95);"> </span></b></p>
<div align="center"><b style="font-family: arial,helvetica,sans-serif;"><span style="font-size: 14pt; color: rgb(153, 51, 0);">u </span><span style="font-size: 14pt; color: rgb(153, 51, 0);">četvrtak, 29. studenoga 2012. u 15:00 sati</span></b></div><h1 align="center"><span style="font-size: 16pt; color: rgb(85, 145, 60);" lang="HR">Ultrabrza spektroskopija u srednjem infracrvenom valnom
području</span><span style="font-size: 16pt; color: rgb(85, 145, 60);" lang="HR"></span></h1>
<p style="margin: 0pt 0pt 0.0001pt; text-align: center; line-height: 150%;" align="center"> <b><span style="font-size: 16pt; font-family: "Century Gothic"; color: rgb(85, 145, 50);"></span></b></p>
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<p style="margin: 5.95pt 0pt 0.0001pt; text-align: center;" align="center"><b><span style="font-size: 14pt;">Dr. sc. Hrvoje Skendero</span></b><b><span style="font-size: 14pt;" lang="HR">vić</span></b><b><span style="font-size: 14pt; font-family: "Century Gothic";" lang="HR"> </span></b><b><span style="font-size: 14pt; font-family: "Century Gothic";"></span></b></p>
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<p style="margin: 0pt 0pt 0.0001pt; text-align: center;" align="center"><b><span style="">Institut
za fiziku, Bijenička 46, Zagreb</span></b><b><span style="font-family: "Century Gothic";" lang="EN-US"></span></b></p>
<p style="margin: 5.95pt 0pt 0.0001pt; text-align: center;" align="center"><b><i><span style="font-size: 11pt;">E-mail:</span></i></b><b><i><span style="font-size: 11pt; font-family: "Century Gothic";">
</span></i></b><span class="object"><b><i><u><span style="font-size: 11pt; color: blue;"><span class="Object" id="OBJ_PREFIX_DWT502_com_zimbra_email">hrvoje@ifs.hr</span></span></u></i></b></span><span style="font-family: "Century Gothic";"></span></p>
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<p class="MsoNormal" style="text-align: justify; line-height: 13pt;"><b><span style="font-family: "Arial Unicode MS";" lang="HR">Za razliku od elektronskih apsorpcijskih spektara kompleksnih molekula u
otopinama koji su općenito veoma široki i gotovo bez strukture, vibracijski
spektri pokazuju karakteristične linije, dovoljno uske i na sobnim
temperaturama da se mogu povezati sa specifičnim vibracjskim stanjima. Zbog
toga rezonanta vibracijska spektroskopija koja obuhvaća zračenje u srednjem
infracrvenom području (MID-IR), 3 – 8 </span></b><b><span style="font-family: Symbol;" lang="HR"><span style="">m</span></span></b><b><span style="font-family: "Arial Unicode MS";" lang="HR">m,
predstavlja pogodnu metodu za dobivanje informacija o strukturi i dinamici
molekula. </span></b><span style="" lang="HR"></span></p>
<p class="MsoNormal" style="text-align: justify; line-height: 13pt;"><span style="" lang="HR"> </span></p>
<p class="MsoNormal" style="text-align: justify; line-height: 13pt;"><b><span style="font-family: "Arial Unicode MS";" lang="HR">Tijekom proteklih nekoliko godina razvijaju se eksperimentalne metode za
oblikovanja ultrakratkih pulseva u MID-IR koje se zasnivaju na germanijskim
akusto-optičkim modulatorima (AOM). Oblikovanje pulseva koji mogu direktno
adresirati vibracijska stanja može predstavljati važan korak prema <i style="">state-selective</i> kemiji budući da se
važne spontane kemijske reakcije u prirodi odvijaju u osnovnom elektronskom
stanju. <span id="DWT504" class="ZmSearchResult">Seminar</span> će prikazati izradu i primjenu jednog MID-IR <i style="">pulse-shapera</i> zasnovanog na AOM.</span></b></p>
<p class="MsoNormal" style="text-align: justify; line-height: 13pt;"><span style="" lang="HR"> </span></p>
<p class="MsoNormal" style="text-align: justify; line-height: 13pt;"><b><span style="font-family: "Arial Unicode MS";" lang="HR">Tipična primjena kratkih pulseva u MID-IR obuhvaća <i style="">pump-probe</i> eksperimente u kojima se molekula pobudi bilo u
vibracijski pobuđena stanja MID-IR pulsom ili u pobuđena elektronska stanja
UV pulsom. Potom se prati vremensko odvijanje tranzijentne apsorpcije pomoću
MID-IR pulsa širokog spektra koja pokazuje seljenje napučenosti vibracijskih
modova u vremenu. Bit će prikazani primjeri tranzijentne apsorpcije na
nekoliko kompleksnih molekula u otopinama.</span></b></p>
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<p class="MsoBodyText" style="text-align: justify; line-height: 6pt;"><b><span style="font-size: 12pt; font-family: "Century Gothic";"> </span></b></p>
<p style="margin: 0pt 0pt 0.0001pt; line-height: 150%;"><b><span class="Object" id="OBJ_PREFIX_DWT505_com_zimbra_url"><a href="http://www.rc.fer.hr/" target="_blank">http://projekt2.ifs.hr<span style="" lang="EN-US">/skenderovic/skenderovic.htm</span></a></span></b><b><i><span style="font-family: "Century Gothic"; color: blue;"></span></i></b></p>
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<p class="MsoNormal"><b><span style="font-size: 11pt; font-family: "Century Gothic";"> </span></b></p>
<p class="MsoNormal"><b><span style="font-size: 11pt; font-family: "Century Gothic";">Voditelji <span id="DWT507" class="ZmSearchResult">seminar</span>a IF-a: Vlasta Horvatić i Osor
Bari</span></b><b><span style="font-size: 11pt; font-family: "Century Gothic";" lang="HR">šić</span></b></p></td></tr></tbody></table></div></body></html>