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Excitation of coherent optical phonons in iron garnet by femtosecond laser pulses

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dc.contributor.author Khan, Pritam
dc.contributor.author Kanamaru, Masataka
dc.contributor.author Hsu, Wei-Hung
dc.contributor.author Kichise, Minori
dc.contributor.author Fujii, Yasuliro
dc.contributor.author Koreeda, Akitoshi
dc.contributor.author Satoh, Takuya
dc.date.accessioned 2019-05-02T14:08:13Z
dc.date.issued 2019
dc.identifier.uri http://hdl.handle.net/10344/7806
dc.description peer-reviewed en_US
dc.description.abstract We employed femtosecond pump-probe technique to investigate the dynamics of coherent optical phonons in iron garnet. A phenomenological symmetry-based consideration reveals that oscillations of the terahertz T2g mode are excited. Selective excitation by a linearly polarized pump and detection by a circularly polarized probe confirm that impulsive stimulated Raman scattering (ISRS) is the driving force for the coherent phonons. Experimental results obtained from ISRS measurements reveal excellent agreement with spontaneous Raman spectroscopy data, analyzed by considering the symmetry of the phonon modes and corresponding excitation and detection selection rules. en_US
dc.language.iso eng en_US
dc.publisher IOP Publishing en_US
dc.relation.ispartofseries Journal of Physics: Condensed Matter;31: 275402
dc.relation.uri https://doi.org/10.1088/1361-648X/ab1665
dc.rights © IOP Publishing Ltd en_US
dc.subject pump-probe spectroscopy en_US
dc.subject Raman spectroscopy en_US
dc.subject coherent phonon en_US
dc.subject ISRS en_US
dc.title Excitation of coherent optical phonons in iron garnet by femtosecond laser pulses en_US
dc.type info:eu-repo/semantics/article en_US
dc.type.supercollection all_ul_research en_US
dc.type.supercollection ul_published_reviewed en_US
dc.identifier.doi 10.1088/1361-648X/ab1665
dc.contributor.sponsor Japan Society for the Promotion of Science en_US
dc.relation.projectid JP15H05454 en_US
dc.relation.projectid JP16F16358 en_US
dc.relation.projectid JP17K18765 en_US
dc.relation.projectid JP26103004 en_US
dc.date.embargoEndDate 2020-04-25
dc.embargo.terms 2020-04-25 en_US
dc.rights.accessrights info:eu-repo/semantics/openAccess en_US
dc.internal.rssid 2905301


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