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== Research and career ==
== Research and career ==
After obtaining his PhD in 1985, Petek was a postdoctoral fellow at the [https://www.ims.ac.jp/en Institute for Molecular Science](IMS) in Okazaki, Japan, where he was supported by a fellowship from the [http://www.yamadazaidan.jp/english.html Yamada Science Foundation] and a National Science Foundation postdoctoral award. After two years in 1987, Petek took on a permanent position at [https://www.ims.ac.jp/en IMS] as a Research Associate. At [https://www.ims.ac.jp/en IMS] he worked in the group of [https://prabook.com/web/keitaro.yoshihara/203466 Prof. Keitaro Yoshihara] on spectroscopy and dynamics of cold, isolated molecules in molecular beams, and where he learned methods of ultrafast electronic spectroscopy. In 1993, he changed jobs and took on the position as a Senior Research Scientist, and a Group Leader at the Hitachi, Advanced Research Laboratory in Hatoyama, Japan. There he led a group of 4-8 researchers and developed his current expertise in the ultrafast coherent spectroscopy of solid surfaces. His pioneering work where he demonstrated that it is possible to measure optical dephasing and control the optical response of electrons in a metal, published in the Physical Review Letters, and a review in the Progress in Surface Science. His research concerns ultrafast electronic dynamics and microscopy of solids and solid surfaces. He developed coherent photoelectron spectroscopy<ref>{{cite journal|last1=Ogawa|first1=S.|last2=Nagano|first2=H.|last3=Petek|first3=H.|last4=Heberle|first4=A.P.|title=Optical Dephasing in Cu(111) Measured by Interferometric Two-Photon Time-Resolved Photoemission|journal=Phys. Rev. Lett.|date=17 Feb 1997|volume=78|issue=7|pages=1339–1342|doi=10.1103/PhysRevLett.78.1339}}</ref><ref>{{cite journal|last1=Petek|first1=H.|last2=Ogawa|first2=S.|title=Femtosecond time-resolved two-photon photoemission studies of electron dynamics in metals|journal=Progress in Surface Science|date=30 Dec 1997|volume=56|issue=4|pages=239–310|doi=10.1016/S0079-6816(98)00002-1}}</ref> and microscopy<ref>{{cite journal|last1=Dąbrowski|first1=Maciej|last2=Dai|first2=Yanan|last3=Petek|first3=Hrvoje|title=Ultrafast Microscopy: Imaging Light with Photoelectrons on the Nano–Femto Scale|journal=J. Phys. Chem. Lett.|date=30 August 2017|volume=8|issue=18|pages=4446–4455|doi=10.1021/acs.jpclett.7b00904}}</ref> as methods for studying the dephasing and spatial propagation of polarization fields in solid state materials and nanostructure. He is developing methods for multidimensional multiphoton-photoemission spectroscopy.<ref>{{cite journal|last1=Reutzel|first1=Marcel|last2=Li|first2=Andi|last3=Petek|first3=Hrvoje|title=Coherent Two-Dimensional Multiphoton Photoelectron Spectroscopy of Metal Surfaces|journal=Phys. Rev. X|date=8 March 2019|volume=9|issue=1|pages=011044|doi=10.1103/PhysRevX.9.011044}}</ref> In addition to these achievements, Petek, together with Profs. [http://staff.ustc.edu.cn/~zhaojin/group_leader.html Jin Zhao], [https://www.chem.pitt.edu/person/kenneth-jordan Ken Jordan], and [https://scholar.google.com/citations?user=8gIQXq0AAAAJ&hl=en Ken Onda] discovered the wet electron states, where electrons are partially solvated by water and other protic solvents at molecule vacuum interfaces.<ref>{{cite journal|last1=Onda|first1=Ken|last2=Li|first2=Bin|last3=Zhao|first3=Jin|last4=Jordan|first4=Kenneth D.|last5=Yang|first5=Jinglong|last6=Petek|first6=Hrvoje|title=Wet Electrons at the H<sub>2</sub>O/TiO<sub>2</sub>(110) Surface|journal=Science|date=20 May 2005|volume=308|issue=5725|pages=1154-1158|doi=10.1126/science.1109366}}</ref> Furthermore, by scanning tunneling microscopy, together with Profs. [http://physics.whu.edu.cn/info/1052/2080.htm Min Feng] and [http://staff.ustc.edu.cn/~zhaojin/group_leader.html Jin Zhao], he discovered atom-like superatom states of C60, and similar hollow molecules.<ref>{{cite journal|last1=Feng|first1=Min|last2=Zhao|first2=Jin|last3=Petek|first3=Hrvoje|title=Atomlike, hollow-core-bound molecular orbitals of C60|journal=Science|date=18 April 2008|volume=320|issue=5874|pages=359-362|doi=10.1126/science.1155866}}</ref> Petek’s recent research with Prof. [https://scholar.google.com/citations?user=EKM5Xb4AAAAJ&hl=en Shijing Tan] has involved studies of metal plasmon excitations with semiconductor substrates, where the charge injection from highly optically active plasmonic modes into semiconductor substrates,<ref>{{cite journal|last1=Tan|first1=Shijing|last2=Argondizzo|first2=Adam|last3=Ren|first3=Jindong||last4=Liu|first4=Liming|last5=Zhao|first5=Jin|last6=Petek|first6=Hrvoje|title=Plasmonic coupling at a metal/semiconductor interface|journal=Nature Photon|date=30 November 2017|volume=11|issue=12|pages=806-812|doi=10.1038/s41566-017-0049-4}}</ref> could be used for solar energy harvesting. Petek’s current research deals with the generation of novel quasiparticles and dressing of band structures of metals. Petek is also [[the Editor in Chief of Progress in Surface Science]]<ref>{{Cite web|url=https://www.sciencedirect.com/journal/progress-in-surface-science/about/editorial-board|title=The Editor in Chief of Progress in Surface Science|website=Progress in Surface Science|access-date=2019-05-16}}</ref> and is heavily involved in organizing conferences in his research field, such as the [https://usd11.github.io 11th International Symposium of Ultrafast Surface Dynamics], to be held in Qiandao Lake, China. Petek has been (2015-2019) a member of National Research and Development Agency Committee for [https://www.nims.go.jp/eng/ the National Institute for Material Science], appointed by the Minister of [http://www.mext.go.jp/en/ Culture, Sports, Science, Technology and Sports of Japan]. He is currently an Senior Scientific Advisor to the [https://www.ims.ac.jp/en Institute for Molecular Science]<ref>"[https://www.ims.ac.jp/en/about/organize/bunshi_manage.html/Petek Hrvoje Petek, Senior Scientific Advisor]". Institute for Molecular Science. Japan. Retrieved 17 May 2019.</ref>
After obtaining his PhD in 1985, Petek was a postdoctoral fellow at the [https://www.ims.ac.jp/en Institute for Molecular Science](IMS) in Okazaki, Japan, where he was supported by a fellowship from the [http://www.yamadazaidan.jp/english.html Yamada Science Foundation] and a National Science Foundation postdoctoral award. After two years in 1987, Petek took on a permanent position at [https://www.ims.ac.jp/en IMS] as a Research Associate. At [https://www.ims.ac.jp/en IMS] he worked in the group of [https://prabook.com/web/keitaro.yoshihara/203466 Prof. Keitaro Yoshihara] on spectroscopy and dynamics of cold, isolated molecules in molecular beams, and where he learned methods of ultrafast electronic spectroscopy. In 1993, he changed jobs and took on the position as a Senior Research Scientist, and a Group Leader at the Hitachi, Advanced Research Laboratory in Hatoyama, Japan. There he led a group of 4-8 researchers and developed his current expertise in the ultrafast coherent spectroscopy of solid surfaces. His pioneering work where he demonstrated that it is possible to measure optical dephasing and control the optical response of electrons in a metal, published in the Physical Review Letters, and a review in the Progress in Surface Science. His research concerns ultrafast electronic dynamics and microscopy of solids and solid surfaces. He developed coherent photoelectron spectroscopy<ref>{{cite journal|last1=Ogawa|first1=S.|last2=Nagano|first2=H.|last3=Petek|first3=H.|last4=Heberle|first4=A.P.|title=Optical Dephasing in Cu(111) Measured by Interferometric Two-Photon Time-Resolved Photoemission|journal=Phys. Rev. Lett.|date=17 Feb 1997|volume=78|issue=7|pages=1339–1342|doi=10.1103/PhysRevLett.78.1339}}</ref><ref>{{cite journal|last1=Petek|first1=H.|last2=Ogawa|first2=S.|title=Femtosecond time-resolved two-photon photoemission studies of electron dynamics in metals|journal=Progress in Surface Science|date=30 Dec 1997|volume=56|issue=4|pages=239–310|doi=10.1016/S0079-6816(98)00002-1}}</ref> and microscopy<ref>{{cite journal|last1=Dąbrowski|first1=Maciej|last2=Dai|first2=Yanan|last3=Petek|first3=Hrvoje|title=Ultrafast Microscopy: Imaging Light with Photoelectrons on the Nano–Femto Scale|journal=J. Phys. Chem. Lett.|date=30 August 2017|volume=8|issue=18|pages=4446–4455|doi=10.1021/acs.jpclett.7b00904}}</ref> as methods for studying the dephasing and spatial propagation of polarization fields in solid state materials and nanostructure. He is developing methods for multidimensional multiphoton-photoemission spectroscopy.<ref>{{cite journal|last1=Reutzel|first1=Marcel|last2=Li|first2=Andi|last3=Petek|first3=Hrvoje|title=Coherent Two-Dimensional Multiphoton Photoelectron Spectroscopy of Metal Surfaces|journal=Phys. Rev. X|date=8 March 2019|volume=9|issue=1|pages=011044|doi=10.1103/PhysRevX.9.011044}}</ref> In addition to these achievements, Petek, together with Profs. [http://staff.ustc.edu.cn/~zhaojin/group_leader.html Jin Zhao], [https://www.chem.pitt.edu/person/kenneth-jordan Ken Jordan], and [https://scholar.google.com/citations?user=8gIQXq0AAAAJ&hl=en Ken Onda] discovered the wet electron states, where electrons are partially solvated by water and other protic solvents at molecule vacuum interfaces.<ref>{{cite journal|last1=Onda|first1=Ken|last2=Li|first2=Bin|last3=Zhao|first3=Jin|last4=Jordan|first4=Kenneth D.|last5=Yang|first5=Jinglong|last6=Petek|first6=Hrvoje|title=Wet Electrons at the H<sub>2</sub>O/TiO<sub>2</sub>(110) Surface|journal=Science|date=20 May 2005|volume=308|issue=5725|pages=1154-1158|doi=10.1126/science.1109366}}</ref> Furthermore, by scanning tunneling microscopy, together with Profs. [http://physics.whu.edu.cn/info/1052/2080.htm Min Feng] and [http://staff.ustc.edu.cn/~zhaojin/group_leader.html Jin Zhao], he discovered atom-like superatom states of C60, and similar hollow molecules.<ref>{{cite journal|last1=Feng|first1=Min|last2=Zhao|first2=Jin|last3=Petek|first3=Hrvoje|title=Atomlike, hollow-core-bound molecular orbitals of C60|journal=Science|date=18 April 2008|volume=320|issue=5874|pages=359-362|doi=10.1126/science.1155866}}</ref> Petek’s recent research with Prof. [https://scholar.google.com/citations?user=EKM5Xb4AAAAJ&hl=en Shijing Tan] has involved studies of metal plasmon excitations with semiconductor substrates, where the charge injection from highly optically active plasmonic modes into semiconductor substrates,<ref>{{cite journal|last1=Tan|first1=Shijing|last2=Argondizzo|first2=Adam|last3=Ren|first3=Jindong||last4=Liu|first4=Liming|last5=Zhao|first5=Jin|last6=Petek|first6=Hrvoje|title=Plasmonic coupling at a metal/semiconductor interface|journal=Nature Photon|date=30 November 2017|volume=11|issue=12|pages=806-812|doi=10.1038/s41566-017-0049-4}}</ref> could be used for solar energy harvesting. Petek’s current research deals with the generation of novel quasiparticles and dressing of band structures of metals. Petek is also the Editor in Chief of Progress in Surface Science <ref>{{Cite web|url=https://www.sciencedirect.com/journal/progress-in-surface-science/about/editorial-board|title=The Editor in Chief of Progress in Surface Science|website=Progress in Surface Science|access-date=2019-05-16}}</ref> and is heavily involved in organizing conferences in his research field, such as the [https://usd11.github.io 11th International Symposium of Ultrafast Surface Dynamics], to be held in Qiandao Lake, China. Petek has been (2015-2019) a member of National Research and Development Agency Committee for [https://www.nims.go.jp/eng/ the National Institute for Material Science], appointed by the Minister of [http://www.mext.go.jp/en/ Culture, Sports, Science, Technology and Sports of Japan]. He is currently an Senior Scientific Advisor to the [https://www.ims.ac.jp/en Institute for Molecular Science]<ref>"[https://www.ims.ac.jp/en/about/organize/bunshi_manage.html/Petek Hrvoje Petek, Senior Scientific Advisor]". Institute for Molecular Science. Japan. Retrieved 17 May 2019.</ref>


== Awards and honours ==
== Awards and honours ==

Revision as of 19:05, 17 May 2019

Hrvoje Petek
Born(1958-01-13)January 13, 1958
Zagreb, Croatia
Nationality United States,  Croatia
Known forUltrafast laser spectroscopy,
Ultrafast microscopy,
Plasmonics,
Two-photon photoelectron spectroscopy
Scientific career
FieldsExperimental physics
InstitutionsMIT
U.C. Berkeley
Institute for Molecular Science
Hitachi Ltd.
University of Pittsburgh

Hrvoje Petek (born 1958) is a Richard King Mellon Chair of Physics and Astronomy (since 2014) and a Professor of Chemistry at the University of Pittsburgh.[1] He is a highly cited researcher in the field of coherent optical interactions in sold state materials. He has developed the interferometric time resolved multiphoton photoemission spectroscopy, which enables electron energy and momentum resolved measurements of quantum mechanical dephasing to be performed on solids with <10 fs (10−14 s) time resolution. He has also developed interferometric time-resolved multiphoton photoemission microscopy, which enables studies of electronic dephasing to be performed with <10 nm (10−8 m) spatial and <10 fs temporal resolutions. He has applied these techniques to studies of electronic dephasing at clean and molecule decorated metal surfaces. He is an author or coauthor of over 185 refereed publications (ISI h-index 46; Google =54), including 9 books or book chapters. He has mentored over 12 graduate students and 15 postdoctoral fellows. He is a coauthor of 19 USA, European, and Japanese patents.


Background and education

Petek was born in Zagreb, Yugoslavia, and emigrated with his family to the U.S.A. when he was 11 years old. He graduated from Sweet Home Senior High School in Amherst, New York. He received his B.S. degree in Chemistry from Massachusetts Institute of Technology in 1980, where he performed undergraduate research with Profs. John Ross (chemist) and Robert W. Field. Subsequently, he obtained his Ph.D. degree in Chemistry from the University of California at Berkeley in 1985, where he worked with Prof. C. B. Moore and developed a difference frequency mixing laser system for measuring of infrared spectra of transient molecules such as CH2,[2] and molecular ions such as N2D+.[3]

Research and career

After obtaining his PhD in 1985, Petek was a postdoctoral fellow at the Institute for Molecular Science(IMS) in Okazaki, Japan, where he was supported by a fellowship from the Yamada Science Foundation and a National Science Foundation postdoctoral award. After two years in 1987, Petek took on a permanent position at IMS as a Research Associate. At IMS he worked in the group of Prof. Keitaro Yoshihara on spectroscopy and dynamics of cold, isolated molecules in molecular beams, and where he learned methods of ultrafast electronic spectroscopy. In 1993, he changed jobs and took on the position as a Senior Research Scientist, and a Group Leader at the Hitachi, Advanced Research Laboratory in Hatoyama, Japan. There he led a group of 4-8 researchers and developed his current expertise in the ultrafast coherent spectroscopy of solid surfaces. His pioneering work where he demonstrated that it is possible to measure optical dephasing and control the optical response of electrons in a metal, published in the Physical Review Letters, and a review in the Progress in Surface Science. His research concerns ultrafast electronic dynamics and microscopy of solids and solid surfaces. He developed coherent photoelectron spectroscopy[4][5] and microscopy[6] as methods for studying the dephasing and spatial propagation of polarization fields in solid state materials and nanostructure. He is developing methods for multidimensional multiphoton-photoemission spectroscopy.[7] In addition to these achievements, Petek, together with Profs. Jin Zhao, Ken Jordan, and Ken Onda discovered the wet electron states, where electrons are partially solvated by water and other protic solvents at molecule vacuum interfaces.[8] Furthermore, by scanning tunneling microscopy, together with Profs. Min Feng and Jin Zhao, he discovered atom-like superatom states of C60, and similar hollow molecules.[9] Petek’s recent research with Prof. Shijing Tan has involved studies of metal plasmon excitations with semiconductor substrates, where the charge injection from highly optically active plasmonic modes into semiconductor substrates,[10] could be used for solar energy harvesting. Petek’s current research deals with the generation of novel quasiparticles and dressing of band structures of metals. Petek is also the Editor in Chief of Progress in Surface Science [11] and is heavily involved in organizing conferences in his research field, such as the 11th International Symposium of Ultrafast Surface Dynamics, to be held in Qiandao Lake, China. Petek has been (2015-2019) a member of National Research and Development Agency Committee for the National Institute for Material Science, appointed by the Minister of Culture, Sports, Science, Technology and Sports of Japan. He is currently an Senior Scientific Advisor to the Institute for Molecular Science[12]

Awards and honours

  • 2019-2021 Luo Jia Visiting Chair Professor, Wuhan University, China
  • 2019 Ahmed Zewail Award in Ultrafast Science and Technology[13]
  • 2018 American Association for the Advancement of Science Fellows[14]
  • 2005 Chancellor’s Distinguished Research Award,University of Pittsburgh[15]
  • 2003 Fellow, American Physical Society
  • 2000 Alexander von Humboldt Research Award
  • 1996–1999, 2003–2006 NEDO Joint International Research Grant Awardee [16]
  • 1985–1987 National Science Foundation Postdoctoral Fellow
  • 1995 Yamada Science Foundation Postdoctoral Fellow
  • 1980–1984 National Science Foundation Predoctoral Fellow

External links

References

  1. ^ Homepage department of physics & astronomy at University of Pittsburgh https://www.physicsandastronomy.pitt.edu/people/
  2. ^ Petek, Hrvoje; Nesbitt, David J.; Moore, C. Bradley (1987). "Visible absorption and magnetic‐rotation spectroscopy of 1CH2: Analysis of the 1A1 state and the 1A1–3B1 coupling". J. Chem. Phys. 86 (3): 1189–1205. doi:10.1063/1.452264. {{cite journal}}: Cite has empty unknown parameter: |1= (help)
  3. ^ Nesbitt, David J.; Petek, Hrvoje; Gudeman, Christopher S.; Moore, C. Bradley; Saykally, Richard J. (1984). "A study of the ν1 fundamental and bend‐excited hot band of DNN+ by velocity modulation absorption spectroscopy with an infrared difference frequency laser". J. Chem. Phys. 81 (12): 5281–5287. doi:10.1063/1.447670. {{cite journal}}: Cite has empty unknown parameters: |1=, |2=, and |3= (help)
  4. ^ Ogawa, S.; Nagano, H.; Petek, H.; Heberle, A.P. (17 Feb 1997). "Optical Dephasing in Cu(111) Measured by Interferometric Two-Photon Time-Resolved Photoemission". Phys. Rev. Lett. 78 (7): 1339–1342. doi:10.1103/PhysRevLett.78.1339.
  5. ^ Petek, H.; Ogawa, S. (30 Dec 1997). "Femtosecond time-resolved two-photon photoemission studies of electron dynamics in metals". Progress in Surface Science. 56 (4): 239–310. doi:10.1016/S0079-6816(98)00002-1.
  6. ^ Dąbrowski, Maciej; Dai, Yanan; Petek, Hrvoje (30 August 2017). "Ultrafast Microscopy: Imaging Light with Photoelectrons on the Nano–Femto Scale". J. Phys. Chem. Lett. 8 (18): 4446–4455. doi:10.1021/acs.jpclett.7b00904.
  7. ^ Reutzel, Marcel; Li, Andi; Petek, Hrvoje (8 March 2019). "Coherent Two-Dimensional Multiphoton Photoelectron Spectroscopy of Metal Surfaces". Phys. Rev. X. 9 (1): 011044. doi:10.1103/PhysRevX.9.011044.
  8. ^ Onda, Ken; Li, Bin; Zhao, Jin; Jordan, Kenneth D.; Yang, Jinglong; Petek, Hrvoje (20 May 2005). "Wet Electrons at the H2O/TiO2(110) Surface". Science. 308 (5725): 1154–1158. doi:10.1126/science.1109366.
  9. ^ Feng, Min; Zhao, Jin; Petek, Hrvoje (18 April 2008). "Atomlike, hollow-core-bound molecular orbitals of C60". Science. 320 (5874): 359–362. doi:10.1126/science.1155866.
  10. ^ Tan, Shijing; Argondizzo, Adam; Ren, Jindong; Liu, Liming; Zhao, Jin; Petek, Hrvoje (30 November 2017). "Plasmonic coupling at a metal/semiconductor interface". Nature Photon. 11 (12): 806–812. doi:10.1038/s41566-017-0049-4. {{cite journal}}: Cite has empty unknown parameter: |1= (help)
  11. ^ "The Editor in Chief of Progress in Surface Science". Progress in Surface Science. Retrieved 2019-05-16.
  12. ^ "Hrvoje Petek, Senior Scientific Advisor". Institute for Molecular Science. Japan. Retrieved 17 May 2019.
  13. ^ "ACS 2019 national award winners". ACS. Retrieved 2018-09-15.
  14. ^ "Two Pitt Professors Named American Association for the Advancement of Science Fellows". University of Pittsburgh. Retrieved 2016-12-06.
  15. ^ "Chancellor's Distinguished Research Award". University of Pittsburgh. Retrieved 2005-03-28.
  16. ^ "New Energy and Industrial Technology Development Organization". NEDO. Retrieved 2019-05-06.
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