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{{Short description|German physicist}}
{{Short description|German physicist}}
{{Multiple issues|
{{BLP sources|date=January 2022}}
{{BLP sources|date=January 2022}}
{{Undisclosed paid|date=February 2022}}
}}

{{Infobox scientist
{{Infobox scientist
| name = Mathias M. Schubert
| name = Mathias M. Schubert
| image = File:Mathias Schubert 2018.jpg
| image =
| birth_date = {{Birth date and age|1966|10|19}}
| birth_date = {{Birth date and age|1966|10|19}}
| birth_place = [[Jena]] [[Thuringia]]
| birth_place = [[Jena]], [[East Germany]]
| workplaces = [[University of Leipzig]] <br> [[Linkoping University]] <br> [[University of Nebraska-Lincoln]]
| workplaces = [[University of Leipzig]]<br>[[University of Nebraska-Lincoln]]
| alma_mater = [[University of Leipzig]]
| alma_mater = [[University of Leipzig]]
}}
}}


'''Mathias Michael Schubert''' (born 19 October 1966) is a German physicist,<ref name=":1">{{Cite web|url=https://ieeexplore.ieee.org/author/37302456800|access-date=2022-02-04|website=ieeexplore.ieee.org}}</ref> J. A. Woollam Distinguished Professor of Electrical and Computer Engineering at the [[University of Nebraska–Lincoln|University of Nebraska-Lincoln]],<ref>{{Cite web|title=Mathias Schubert {{!}} College of Engineering {{!}} University of Nebraska–Lincoln|url=https://engineering.unl.edu/ece/faculty/mathias-schubert/|access-date=2022-02-04|website=engineering.unl.edu}}</ref> and member of the [[List of nanotechnology organizations|Nebraska Center for Materials and Nanoscience]].<ref>{{Cite web|title=Faculty - Schubert {{!}} Nebraska Center for Materials & Nanoscience|url=https://ncmn.unl.edu/faculty/schubert|access-date=2022-02-04|website=ncmn.unl.edu}}</ref> He is a specialist in spectroscopic ellipsometry and has contributed to the development of blue and white [[LED]], fast processors and efficient biological and chemical sensors.<ref>{{Cite web|title=LiU's honorary doctors|url=https://liu.se/en/article/liu-s-honorary-doctors|access-date=2022-02-04|website=liu.se|language=en}}</ref><ref>{{Cite web|title=Mathias Schubert|url=https://experts.nebraska.edu/en/persons/mathias-schubert|access-date=2022-02-04|website=Research Nebraska|language=en}}</ref><ref>{{Cite web|title=Mathias Schubert {{!}} J.A. Woollam Distinguished Professor of Electrical and Computer Engineering|url=https://www.researchgate.net/profile/Mathias-Schubert-3|access-date=2022-02-04|website=ResearchGate|language=en}}</ref> He is also visiting professor at [[Linkoping University]] and Associate Editor of the journal ''[[Applied Physics Letters]]''.<ref name=":0">{{Cite web|title=Mathias Schubert|url=https://liu.se/en/employee/schma39|access-date=2022-02-04|website=liu.se|language=en}}</ref><ref>{{Cite web|title=Applied Physics Letters|url=https://aip.scitation.org/apl/info/editors|access-date=2022-02-04|website=Applied Physics Letters|language=en}}</ref>


'''Mathias Michael Schubert''' (born 19 October 1966) is a German physicist and Professor of Electrical and Computer Engineering at the [[University of Nebraska–Lincoln|University of Nebraska-Lincoln]] and member of the [[List of nanotechnology organizations|Nebraska Center for Materials and Nanoscience]]. His research concerns [[terahertz]] to [[deep ultraviolet]] spectroscopic [[generalized ellipsometry]] and [[imaging]], the [[optical Hall effect]], and [[terahertz]] [[electron paramagnetic resonance]] [[ellipsometry]] for characterization of [[semiconductors]], [[nanomaterials]], [[optoelectronics]], [[organic electronics]], and [[polymers]]. He was awarded the Ludwig-Genzel Prize in 2006. In 2011 he was elected Fellow of the [[American Physical Society]]. In 2014 he was named Fellow of the [[Leibniz Institute for Polymer Research]]. In 2015 he was awarded with an honorary doctorate of technology from [[Linkoping University]]. He was topical editor for the [[Optical Society of America]] from 2005-2007 and 2014-2017. He holds the [[John Woollam (physicist)]] [[Distinguished Professorship]] at the [[University of Nebraska-Lincoln]] since 2017 and a Guest Professorship from [[Linkoping University]] since 2016. He is also Associate Editor of the journal [[Applied Physics Letters]] since 2017.


== Early life and education ==
== Early life and education ==
Schubert was born in [[Jena]], [[Thuringia]], [[Germany]]. He graduated high school in 1986 with vocational education as [[tool and die maker]] from the Keramische Werke in [[Hermsdorf, Thuringia]]. After military service he studied physics at the [[University of Leipzig]] until 1994. He received a fellowship from the [[German Merit Foundation]] in 1995, prior to begin of his doctoral research program developing concepts of [[generalized ellipsometry]]. In 1997 after earning his PhD he moved to the [[University of Nebraska-Lincoln]], where he worked on infrared ellipsometry developments for characterization of semiconductors, and where he invented the [[optical Hall effect]]. After return to the [[University of Leipzig]] he obtained his [[habilitation]] in 2003 in experimental physics.
Schubert was born in [[Jena]], [[Bezirk Gera]], [[East Germany]]. He graduated high school in 1986 with vocational education as [[tool and die maker]] from the Keramische Werke in [[Hermsdorf, Thuringia|Hermsdorf]]. After military service he studied physics at the [[University of Leipzig]] until 1994.<ref>{{Cite web|title=UNL - CMO Network-People-Schubert|url=http://ellipsometry.unl.edu/people/schubert/schubert_bio.php|access-date=2022-02-04|website=ellipsometry.unl.edu}}</ref> He received a fellowship from the [[German Merit Foundation]] in 1995 for his doctoral research. In 1997 after earning his PhD he moved to the [[University of Nebraska-Lincoln]], where he worked on infrared ellipsometry developments for characterization of semiconductors. After return to the [[University of Leipzig]] he obtained his [[habilitation]] in 2003 in experimental physics.


== Research and Career ==
== Research and career ==
In 2000, Schubert was appointed Assistant Professor (Habilitant, C1) at [[University of Leipzig]], where he founded the Ellipsometry group<ref>{{Cite web|title=Homepage of the Ellipsometry Workgroup|url=https://polariton.exphysik.uni-leipzig.de/subsites/methods/methods-iom.html|access-date=2022-02-01|website=polariton.exphysik.uni-leipzig.de}}</ref>. In 2005 Schubert was founding member of the German Association of Ellipsometry (Paul Drude e.V.).<ref>{{Cite web|title=About us|url=http://www.ake-pdv.org/index.php/about-us|access-date=2022-02-01|website=www.ake-pdv.org}}</ref> In 2005 Schubert was appointed Associate Professor at the [[University of Nebraska-Lincoln]], where he founded the Complex Materials Optics Network<ref>{{Cite web|last=Hofmann|first=Dr. Tino|title=UNL - CMO Network|url=http://ellipsometry.unl.edu/|access-date=2022-02-01|website=ellipsometry.unl.edu}}</ref>. In 2012 he became Full professor. Schubert’s research focuses on broad spectral range optical characterization of organic and inorganic materials. He invented and developed spectroscopic [[generalized ellipsometry]] broadly for characterization of arbitrarily anisotropic materials including [[magneto-optic effect]] and [[magnetoelectric effect]]. He also invented the [[optical Hall effect]] for noncontact measurement of the [[charge carrier]] [[mass]] in [[semiconductor materials]] and [[thin film]] [[heterojunctions]]. The [[generalized ellipsometry]] concept permits analysis of optical properties of materials with all [[crystal classes]], particularly with low symmetry such as [[orthorhombic]], [[monoclininc]], and [[triclinic]]. Such properties include [[phonons]], [[excitons]], [[polaritons]], and [[spin magnetic moment]]. In 2016, Schubert developed a general concept for modeling the optical properties of low-symmetry materials, the eigendielectric polarization model. In 2022, he demonstrated measurement of the [[magnetic susceptibility]] [[tensor]] in [[electron paramagnetic resonance]] using [[terahertz]] [[ellipsometry]].
In 2000, Schubert was appointed Assistant Professor (Habilitant, C1) at [[University of Leipzig]], where he founded the Ellipsometry group.<ref>{{Cite web|title=Homepage of the Ellipsometry Workgroup|url=https://polariton.exphysik.uni-leipzig.de/subsites/methods/methods-iom.html|access-date=2022-02-01|website=polariton.exphysik.uni-leipzig.de}}</ref> In 2005 Schubert was founding member of the German Association of Ellipsometry (Paul Drude e.V.).<ref>{{Cite web|title=About us|url=http://www.ake-pdv.org/index.php/about-us|access-date=2022-02-01|website=www.ake-pdv.org}}</ref> In 2005 Schubert was appointed associate professor at the [[University of Nebraska-Lincoln]], where he founded the Complex Materials Optics Network.<ref>{{Cite web|last=Hofmann|first=Tino|title=UNL - CMO Network|url=http://ellipsometry.unl.edu/|access-date=2022-02-01|website=ellipsometry.unl.edu}}</ref> In 2012 he became Full professor.<ref name=":1" /> Schubert's research focuses on broad spectral range optical characterization of organic and inorganic materials. He invented and developed spectroscopic [[generalized ellipsometry]] broadly for characterization of arbitrarily anisotropic materials.<ref>{{Cite journal|last=Schubert|first=M.|date=2006|title=Another century of ellipsometry|journal=Annalen der Physik|language=en|volume=15|issue=7–8|pages=480–497|doi=10.1002/andp.200510204|s2cid=121050746 |issn=1521-3889|doi-access=free}}</ref> His research team invented the [[optical Hall effect]] for noncontact measurement of the [[charge carrier]] [[mass]] in [[semiconductor materials]] and [[thin film]] [[heterojunctions]].<ref>{{Cite journal|last1=Schubert|first1=Mathias|last2=Kühne|first2=Philipp|last3=Darakchieva|first3=Vanya|last4=Hofmann|first4=Tino|date=2016-08-01|title=Optical Hall effect—model description: tutorial|url=https://opg.optica.org/josaa/abstract.cfm?uri=josaa-33-8-1553|journal=JOSA A|language=EN|volume=33|issue=8|pages=1553–1568|doi=10.1364/JOSAA.33.001553|pmid=27505654 |bibcode=2016JOSAA..33.1553S |issn=1520-8532}}</ref><ref>{{Cite web|title=US Patent for Integrated mid-infrared, far infrared and terahertz optical Hall effect (OHE) instrument, and method of use Patent (Patent # 9,851,294 issued December 26, 2017) - Justia Patents Search|url=https://patents.justia.com/patent/9851294|access-date=2022-02-04|website=patents.justia.com}}</ref> The [[generalized ellipsometry]] concept permits analysis of optical properties of materials with all [[crystal classes]], particularly with low symmetry such as [[orthorhombic]],<ref>{{Cite journal|last1=Mock|first1=A.|last2=Korlacki|first2=R.|last3=Knight|first3=S.|last4=Stokey|first4=M.|last5=Fritz|first5=A.|last6=Darakchieva|first6=V.|last7=Schubert|first7=M.|date=2019-05-17|title=<nowiki>Lattice dynamics of orthorhombic ${\mathrm{NdGaO}}_{3}$</nowiki>|journal=Physical Review B|volume=99|issue=18|pages=184302|doi=10.1103/PhysRevB.99.184302|s2cid=181378425 |doi-access=free}}</ref> [[monoclininc]],<ref>{{Cite journal|last1=Schubert|first1=M.|last2=Korlacki|first2=R.|last3=Knight|first3=S.|last4=Hofmann|first4=T.|last5=Schöche|first5=S.|last6=Darakchieva|first6=V.|last7=Janzén|first7=E.|last8=Monemar|first8=B.|last9=Gogova|first9=D.|last10=Thieu|first10=Q.-T.|last11=Togashi|first11=R.|date=2016-03-15|title=Anisotropy, phonon modes, and free charge carrier parameters in monoclinic $\ensuremath{\beta}$-gallium oxide single crystals|journal=Physical Review B|volume=93|issue=12|pages=125209|doi=10.1103/PhysRevB.93.125209|s2cid=8755147 |doi-access=free|arxiv=1512.08590}}</ref> and [[triclinic]].<ref>{{Cite journal|last1=Dressel|first1=M.|last2=Gompf|first2=B.|last3=Faltermeier|first3=D.|last4=Tripathi|first4=A. K.|last5=Pflaum|first5=J.|last6=Schubert|first6=M.|date=2008-11-24|title=Kramers-Kronig-consistent optical functions of anisotropic crystals: generalized spectroscopic ellipsometry on pentacene|url=https://opg.optica.org/oe/abstract.cfm?uri=oe-16-24-19770|journal=Optics Express|language=EN|volume=16|issue=24|pages=19770–19778|doi=10.1364/OE.16.019770|pmid=19030062 |bibcode=2008OExpr..1619770D |issn=1094-4087|doi-access=free}}</ref> Schubert developed a general concept for modeling the optical properties of low-symmetry materials, the eigendielectric polarization model.<ref>{{Cite journal|last=Schubert|first=Mathias|date=2016-11-15|title=Coordinate-Invariant Lyddane-Sachs-Teller Relationship for Polar Vibrations in Materials with Monoclinic and Triclinic Crystal Systems|url=https://link.aps.org/doi/10.1103/PhysRevLett.117.215502|journal=Physical Review Letters|volume=117|issue=21|pages=215502|doi=10.1103/PhysRevLett.117.215502|pmid=27911546 |arxiv=1602.08785 |bibcode=2016PhRvL.117u5502S |s2cid=4682436 }}</ref> In 2022, he demonstrated measurement of the [[magnetic susceptibility]] [[tensor]] in [[electron paramagnetic resonance]] using [[Terahertz (unit)|terahertz]] [[ellipsometry]]<ref>{{Cite journal|last1=Schubert|first1=Mathias|last2=Knight|first2=Sean|last3=Richter|first3=Steffen|last4=Kühne|first4=Philipp|last5=Stanishev|first5=Vallery|last6=Ruder|first6=Alexander|last7=Stokey|first7=Megan|last8=Korlacki|first8=Rafal|last9=Irmscher|first9=Klaus|last10=Neugebauer|first10=Petr|last11=Darakchieva|first11=Vanya|date=2022-01-18|title=Terahertz electron paramagnetic resonance generalized spectroscopic ellipsometry: The magnetic response of the nitrogen defect in 4H-SiC|journal=Applied Physics Letters |volume=120 |issue=10 |page=102101 |doi=10.1063/5.0082353 |arxiv=2201.06695v1 |bibcode=2022ApPhL.120j2101S |s2cid=246016025 |language=en}}</ref> and was part of a team describing a new form of coupled phonon photon states in low-symmetry materials.<ref>{{Cite web |publisher=Max Planck Society|title=Hyperpolic shear polaritons in low-symmetry crystals |url=https://phys.org/news/2022-02-hyperpolic-polaritons-low-symmetry-crystals.html |access-date=2022-03-02 |website=phys.org |language=en}}</ref><ref>{{Cite web |title=Asymmetrische Nanowellen |url=http://www.pro-physik.de/nachrichten/asymmetrische-nanowellen |access-date=2022-03-02 |website=www.pro-physik.de |language=de}}</ref><ref>{{Cite web |title=네이처 하이라이트：낮은 대칭성을 가지는 결정에서 쌍곡선 전단(Shear) 폴라리톤(Polariton) {{!}} Nature Portfolio |url=http://www.natureasia.com/ko-kr/nature/highlights/111964 |access-date=2022-03-02 |website=www.natureasia.com |language=ko}}</ref><ref>{{Cite web |title=Nebraska engineer on international research team published in February 23 issue of Nature |url=https://epscor.nebraska.edu/media/news-and-events/news/2022/equate-research-appears-in-nature |access-date=2022-03-02 |website=epscor.nebraska.edu}}</ref><ref>{{Cite web |date=March 3, 2022 |title=International research collaboration reveals new possibilities in nanophotonics |url=https://news.vanderbilt.edu/2022/03/03/international-research-collaboration-reveals-new-possibilities-in-nanophotonics/ |access-date=2022-03-05 |website=Vanderbilt University |language=en-US}}</ref><ref>{{Cite web |title=Schubert's idea grows into discovery of new material class |url=https://news.unl.edu/newsrooms/today/article/schuberts-idea-grows-into-discovery-of-new-material-class/ |access-date=2022-03-07 |website=news.unl.edu |date=4 March 2022 |language=en}}</ref>


== Awards and honors ==
== Awards and honors ==
Line 27: Line 27:
* 2002 Fellowship of the Swedish Foundation for International Cooperation in Research and Higher Education (STINT)<ref>{{Cite web|title=STINT - The Swedish Foundation for International Cooperation in Research and Higher Education|url=https://www.stint.se/en/|access-date=2022-02-01|website=STINT|language=en-US}}</ref>
* 2002 Fellowship of the Swedish Foundation for International Cooperation in Research and Higher Education (STINT)<ref>{{Cite web|title=STINT - The Swedish Foundation for International Cooperation in Research and Higher Education|url=https://www.stint.se/en/|access-date=2022-02-01|website=STINT|language=en-US}}</ref>
* 2006 Ludwig-Genzel Prize<ref>{{Cite web|title=Ludwig-Genzel-Prize {{!}} 1. Physikalisches Institut {{!}} University of Stuttgart|url=https://www.pi1.uni-stuttgart.de/institute/links-internal-information/genzel/|access-date=2022-02-01|website=www.pi1.uni-stuttgart.de|language=en}}</ref>
* 2006 Ludwig-Genzel Prize<ref>{{Cite web|title=Ludwig-Genzel-Prize {{!}} 1. Physikalisches Institut {{!}} University of Stuttgart|url=https://www.pi1.uni-stuttgart.de/institute/links-internal-information/genzel/|access-date=2022-02-01|website=www.pi1.uni-stuttgart.de|language=en}}</ref>
* 2011 Elected Fellow of the [[American Physical Society]]<ref>{{Cite web|title=APS Fellow Archive|url=http://www.aps.org/programs/honors/fellowships/archive-all.cfm|access-date=2022-02-01|website=www.aps.org|language=en}}</ref>
* 2011 Elected Fellow of the [[American Physical Society]]<ref>{{Cite web|title=APS Fellow Archive|url=http://www.aps.org/programs/honors/fellowships/archive-all.cfm|access-date=2022-02-01|website=www.aps.org|language=en}}</ref><ref>{{Cite web|title=Schubert named fellow in physics organization {{!}} Announce {{!}} University of Nebraska-Lincoln|url=https://newsroom.unl.edu/announce/todayatunl/870/5261|access-date=2022-02-04|website=newsroom.unl.edu}}</ref>
* 2014 Named Fellow of the [[Leibniz Institute for Polymer Research]] Dresden<ref>{{Cite web|title=Ehemalige IPF-Fellows {{!}} Leibniz-Institut für Polymerforschung Dresden e. V.|url=https://www.ipfdd.de/de/forschung/ipf-fellows/ehemalige-ipf-fellows/|access-date=2022-02-01|website=www.ipfdd.de}}</ref>
* 2014 Named Fellow of the [[Leibniz Institute for Polymer Research]] Dresden<ref>{{Cite web|title=Ehemalige IPF-Fellows {{!}} Leibniz-Institut für Polymerforschung Dresden e. V.|url=https://www.ipfdd.de/de/forschung/ipf-fellows/ehemalige-ipf-fellows/|access-date=2022-02-01|website=www.ipfdd.de}}</ref>
* 2015 Honorary Doctor of Technology, Linköping University<ref>{{Cite web|title=LiU's honorary doctors|url=https://liu.se/en/article/liu-s-honorary-doctors|access-date=2022-02-01|website=liu.se|language=en}}</ref>
* 2015 Honorary Doctor of Technology, Linköping University<ref>{{Cite web|title=Honorary doctors|url=https://liu.se/en/article/honorary-doctors|access-date=2022-02-04|website=liu.se|language=en}}</ref><ref>{{cite tweet |author=Nebraska Engineering |user=NebEngineering |number=610863966600957954 |date=2015-06-16 |title=ECE professor Matthias Schubert was awarded an honorary doctorate of technology by Linkoping University in Sweden http://t.co/opRqw0bKGb |language=en |access-date=2023-02-17}}</ref>
* 2016 Guest professor [[Linkoping University]]<ref>{{Cite web|title=Mathias Schubert|url=https://liu.se/en/employee/schma39|access-date=2022-01-31|website=liu.se|language=en}}</ref>
* 2016 Visiting professor [[Linkoping University]]<ref name=":0" />
* 2017 [[John Woollam (physicist)]] [[Distinguished Professorship]] of Electrical and Computer Engineering<ref>{{Cite web|title=Mathias Schubert {{!}} College of Engineering {{!}} University of Nebraska–Lincoln|url=https://engineering.unl.edu/ece/faculty/mathias-schubert/|access-date=2022-02-01|website=engineering.unl.edu}}</ref>
* 2017 J. A. Woollam [[Distinguished Professorship]] of Electrical and Computer Engineering, in honor of [[John Woollam (physicist)|John Woollam]]<ref>{{Cite web|title=Mathias Schubert {{!}} College of Engineering {{!}} University of Nebraska–Lincoln|url=https://engineering.unl.edu/ece/faculty/mathias-schubert/|access-date=2022-02-01|website=engineering.unl.edu}}</ref>


== Selected publications ==
== Publications ==


Schubert has published 338 articles, book chapters, and books, gathering more than 11,400 citations, according to Google Scholar.<ref>{{Cite web|title=Mathias Schubert|url=https://scholar.google.com/citations?user=TIgdaGk3ABYC&hl=en|access-date=2022-02-04|website=scholar.google.com}}</ref>
* "Polarization-dependent optical parameters of arbitrarily anisotropic homogeneous layered systems", M. Schubert, Phys. Rev. B '''53''', 4265-4274 (1996) [<nowiki/>[[doi:10.1103/PhysRevB.53.4265|DOI]]]
* "Generalized far-infrared magneto-optic ellipsometry for semiconductor layer structures: Determination of free-carrier effective mass, mobility and concentration parameters in n-type GaAs", M. Schubert, T. Hofmann, and C. M. Herzinger, J. Opt. Soc. Am. A '''20''', 347-356 (2003) [[http://dx.doi.org/10.1364/JOSAA.20.000347 DOI]]
* "Polarization selection rules for inter-Landau level transitions in epitaxial graphene revealed by infrared optical Hall effect", P. Kühne, V. Darakchieva, J.D. Tedesco ''et al.'', Phys. Rev. Lett. '''111''', 077402 (2013) [[http://dx.doi.org/10.1103/PhysRevLett.111.077402 DOI]]
* "Coordinate-invariant Lyddane-Sachs-Teller relationship for polar vibrations in materials with monoclinic and triclinic crystal systems", M. Schubert, Phys. Rev. Lett. '''117''', 215502 (2016) [[http://dx.doi.org/10.1103/PhysRevLett.117.215502 DOI]]
* "Broadband enhanced chirality with tunable response in hybrid plasmonic helical metamaterials", U. Kilic, M. Hilfiker, A. Ruder ''et al.'', Advanced Functional Materials '''31''' 2010329 (2021) [[http://dx.doi.org/10.1002/adfm.202010329 DOI]]
* "Hyperbolic Shear Polaritons in Low-Symmetry Crystals", N. Passler, X. Ni, G. Hu ''et al.'' (2022) [[https://doi.org/10.21203/rs.3.rs-558805/v1]]


== References ==
== References ==
<references />
<references />
{{authority control}}

{{DEFAULTSORT:Schubert, Mathias}}
== External links ==
[[Category:Academic staff of Leipzig University]]

[[Category:German electrical engineers]]
* [https://orcid.org/0000-0001-6238-663X ORCID profile]
[[Category:German expatriates in the United States]]
* Scientific databases: [https://publons.com/researcher/651941/mathias-schubert/ Publons], [https://scholar.google.com/citations?user=TIgdaGk3ABYC&hl=en Google Scholar]
[[Category:Fellows of the American Physical Society]]
[[Category:20th-century German engineers]]
[[Category:Leipzig University alumni]]
[[Category:21st-century German engineers]]
[[Category:University of Nebraska–Lincoln faculty]]
[[Category:Scientists from Jena]]
[[Category:Engineers from Thuringia]]
[[Category:1966 births]]
[[Category:Living people]]

Latest revision as of 21:39, 29 January 2024

Mathias M. Schubert
Born (1966-10-19) October 19, 1966 (age 57)
Jena, East Germany
Alma materUniversity of Leipzig
Scientific career
InstitutionsUniversity of Leipzig
University of Nebraska-Lincoln

Mathias Michael Schubert (born 19 October 1966) is a German physicist,[1] J. A. Woollam Distinguished Professor of Electrical and Computer Engineering at the University of Nebraska-Lincoln,[2] and member of the Nebraska Center for Materials and Nanoscience.[3] He is a specialist in spectroscopic ellipsometry and has contributed to the development of blue and white LED, fast processors and efficient biological and chemical sensors.[4][5][6] He is also visiting professor at Linkoping University and Associate Editor of the journal Applied Physics Letters.[7][8]

Early life and education[edit]

Schubert was born in Jena, Bezirk Gera, East Germany. He graduated high school in 1986 with vocational education as tool and die maker from the Keramische Werke in Hermsdorf. After military service he studied physics at the University of Leipzig until 1994.[9] He received a fellowship from the German Merit Foundation in 1995 for his doctoral research. In 1997 after earning his PhD he moved to the University of Nebraska-Lincoln, where he worked on infrared ellipsometry developments for characterization of semiconductors. After return to the University of Leipzig he obtained his habilitation in 2003 in experimental physics.

Research and career[edit]

In 2000, Schubert was appointed Assistant Professor (Habilitant, C1) at University of Leipzig, where he founded the Ellipsometry group.[10] In 2005 Schubert was founding member of the German Association of Ellipsometry (Paul Drude e.V.).[11] In 2005 Schubert was appointed associate professor at the University of Nebraska-Lincoln, where he founded the Complex Materials Optics Network.[12] In 2012 he became Full professor.[1] Schubert's research focuses on broad spectral range optical characterization of organic and inorganic materials. He invented and developed spectroscopic generalized ellipsometry broadly for characterization of arbitrarily anisotropic materials.[13] His research team invented the optical Hall effect for noncontact measurement of the charge carrier mass in semiconductor materials and thin film heterojunctions.[14][15] The generalized ellipsometry concept permits analysis of optical properties of materials with all crystal classes, particularly with low symmetry such as orthorhombic,[16] monoclininc,[17] and triclinic.[18] Schubert developed a general concept for modeling the optical properties of low-symmetry materials, the eigendielectric polarization model.[19] In 2022, he demonstrated measurement of the magnetic susceptibility tensor in electron paramagnetic resonance using terahertz ellipsometry[20] and was part of a team describing a new form of coupled phonon photon states in low-symmetry materials.[21][22][23][24][25][26]

Awards and honors[edit]

Publications[edit]

Schubert has published 338 articles, book chapters, and books, gathering more than 11,400 citations, according to Google Scholar.[35]

References[edit]

  1. ^ a b ieeexplore.ieee.org https://ieeexplore.ieee.org/author/37302456800. Retrieved 2022-02-04. {{cite web}}: Missing or empty |title= (help)
  2. ^ "Mathias Schubert | College of Engineering | University of Nebraska–Lincoln". engineering.unl.edu. Retrieved 2022-02-04.
  3. ^ "Faculty - Schubert | Nebraska Center for Materials & Nanoscience". ncmn.unl.edu. Retrieved 2022-02-04.
  4. ^ "LiU's honorary doctors". liu.se. Retrieved 2022-02-04.
  5. ^ "Mathias Schubert". Research Nebraska. Retrieved 2022-02-04.
  6. ^ "Mathias Schubert | J.A. Woollam Distinguished Professor of Electrical and Computer Engineering". ResearchGate. Retrieved 2022-02-04.
  7. ^ a b "Mathias Schubert". liu.se. Retrieved 2022-02-04.
  8. ^ "Applied Physics Letters". Applied Physics Letters. Retrieved 2022-02-04.
  9. ^ "UNL - CMO Network-People-Schubert". ellipsometry.unl.edu. Retrieved 2022-02-04.
  10. ^ "Homepage of the Ellipsometry Workgroup". polariton.exphysik.uni-leipzig.de. Retrieved 2022-02-01.
  11. ^ "About us". www.ake-pdv.org. Retrieved 2022-02-01.
  12. ^ Hofmann, Tino. "UNL - CMO Network". ellipsometry.unl.edu. Retrieved 2022-02-01.
  13. ^ Schubert, M. (2006). "Another century of ellipsometry". Annalen der Physik. 15 (7–8): 480–497. doi:10.1002/andp.200510204. ISSN 1521-3889. S2CID 121050746.
  14. ^ Schubert, Mathias; Kühne, Philipp; Darakchieva, Vanya; Hofmann, Tino (2016-08-01). "Optical Hall effect—model description: tutorial". JOSA A. 33 (8): 1553–1568. Bibcode:2016JOSAA..33.1553S. doi:10.1364/JOSAA.33.001553. ISSN 1520-8532. PMID 27505654.
  15. ^ "US Patent for Integrated mid-infrared, far infrared and terahertz optical Hall effect (OHE) instrument, and method of use Patent (Patent # 9,851,294 issued December 26, 2017) - Justia Patents Search". patents.justia.com. Retrieved 2022-02-04.
  16. ^ Mock, A.; Korlacki, R.; Knight, S.; Stokey, M.; Fritz, A.; Darakchieva, V.; Schubert, M. (2019-05-17). "Lattice dynamics of orthorhombic ${\mathrm{NdGaO}}_{3}$". Physical Review B. 99 (18): 184302. doi:10.1103/PhysRevB.99.184302. S2CID 181378425.
  17. ^ Schubert, M.; Korlacki, R.; Knight, S.; Hofmann, T.; Schöche, S.; Darakchieva, V.; Janzén, E.; Monemar, B.; Gogova, D.; Thieu, Q.-T.; Togashi, R. (2016-03-15). "Anisotropy, phonon modes, and free charge carrier parameters in monoclinic $\ensuremath{\beta}$-gallium oxide single crystals". Physical Review B. 93 (12): 125209. arXiv:1512.08590. doi:10.1103/PhysRevB.93.125209. S2CID 8755147.
  18. ^ Dressel, M.; Gompf, B.; Faltermeier, D.; Tripathi, A. K.; Pflaum, J.; Schubert, M. (2008-11-24). "Kramers-Kronig-consistent optical functions of anisotropic crystals: generalized spectroscopic ellipsometry on pentacene". Optics Express. 16 (24): 19770–19778. Bibcode:2008OExpr..1619770D. doi:10.1364/OE.16.019770. ISSN 1094-4087. PMID 19030062.
  19. ^ Schubert, Mathias (2016-11-15). "Coordinate-Invariant Lyddane-Sachs-Teller Relationship for Polar Vibrations in Materials with Monoclinic and Triclinic Crystal Systems". Physical Review Letters. 117 (21): 215502. arXiv:1602.08785. Bibcode:2016PhRvL.117u5502S. doi:10.1103/PhysRevLett.117.215502. PMID 27911546. S2CID 4682436.
  20. ^ Schubert, Mathias; Knight, Sean; Richter, Steffen; Kühne, Philipp; Stanishev, Vallery; Ruder, Alexander; Stokey, Megan; Korlacki, Rafal; Irmscher, Klaus; Neugebauer, Petr; Darakchieva, Vanya (2022-01-18). "Terahertz electron paramagnetic resonance generalized spectroscopic ellipsometry: The magnetic response of the nitrogen defect in 4H-SiC". Applied Physics Letters. 120 (10): 102101. arXiv:2201.06695v1. Bibcode:2022ApPhL.120j2101S. doi:10.1063/5.0082353. S2CID 246016025.
  21. ^ "Hyperpolic shear polaritons in low-symmetry crystals". phys.org. Max Planck Society. Retrieved 2022-03-02.
  22. ^ "Asymmetrische Nanowellen". www.pro-physik.de (in German). Retrieved 2022-03-02.
  23. ^ "네이처 하이라이트：낮은 대칭성을 가지는 결정에서 쌍곡선 전단(Shear) 폴라리톤(Polariton) | Nature Portfolio". www.natureasia.com (in Korean). Retrieved 2022-03-02.
  24. ^ "Nebraska engineer on international research team published in February 23 issue of Nature". epscor.nebraska.edu. Retrieved 2022-03-02.
  25. ^ "International research collaboration reveals new possibilities in nanophotonics". Vanderbilt University. March 3, 2022. Retrieved 2022-03-05.
  26. ^ "Schubert's idea grows into discovery of new material class". news.unl.edu. 4 March 2022. Retrieved 2022-03-07.
  27. ^ "STINT - The Swedish Foundation for International Cooperation in Research and Higher Education". STINT. Retrieved 2022-02-01.
  28. ^ "Ludwig-Genzel-Prize | 1. Physikalisches Institut | University of Stuttgart". www.pi1.uni-stuttgart.de. Retrieved 2022-02-01.
  29. ^ "APS Fellow Archive". www.aps.org. Retrieved 2022-02-01.
  30. ^ "Schubert named fellow in physics organization | Announce | University of Nebraska-Lincoln". newsroom.unl.edu. Retrieved 2022-02-04.
  31. ^ "Ehemalige IPF-Fellows | Leibniz-Institut für Polymerforschung Dresden e. V." www.ipfdd.de. Retrieved 2022-02-01.
  32. ^ "Honorary doctors". liu.se. Retrieved 2022-02-04.
  33. ^ Nebraska Engineering [@NebEngineering] (2015-06-16). "ECE professor Matthias Schubert was awarded an honorary doctorate of technology by Linkoping University in Sweden http://t.co/opRqw0bKGb" (Tweet). Retrieved 2023-02-17 – via Twitter.
  34. ^ "Mathias Schubert | College of Engineering | University of Nebraska–Lincoln". engineering.unl.edu. Retrieved 2022-02-01.
  35. ^ "Mathias Schubert". scholar.google.com. Retrieved 2022-02-04.
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