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PbGa2MSe6 (M = Si, ...
PbGa2MSe6 (M = Si, Ge) : Two Exceptional Infrared Nonlinear Optical Crystals
- Article/chapterEnglish2015
Publisher, publication year, extent ...
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2015-01-16
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American Chemical Society (ACS),2015
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printrdacarrier
Numbers
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LIBRIS-ID:oai:DiVA.org:su-115926
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https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-115926URI
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https://doi.org/10.1021/cm504195xDOI
Supplementary language notes
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Language:English
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Summary in:English
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Subject category:ref swepub-contenttype
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Subject category:art swepub-publicationtype
Notes
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AuthorCount:8;
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Two noncentrosymmetric (NCS) quaternary selenides, PbGa2SiSe6 (1) and PbGa2GeSe6 (2), with second-order nonlinear optical (NLO) responses, were synthesized by a conventional high-temperature solid-state reaction method. Compounds 1 and 2 are constructed by three NCS chromophores, [PbSe4], [GaSe4], and [Ga/SiSe4] or [Ga/GeSe4], with the covalent interactions between the X and Se atoms (X = Pb, Ga, Ga/Si, or Ga/Ge). They crystallize in the polar space groups Cc and Fdd2, respectively. Inspiringly, compound 2 is phase-matchable (PM) and shows high laser-induced damage threshold (LIDT) of 3.7 x AgGaS2 and wide transparent region (0.6325 mu m) in the mid-infrared (MIR) region. Most importantly, it presents extraordinary strong second harmonic generation (SHG) at 2.05 mu m radiation of about 12 x AgGaS2 at the particle size of 2545 mu m, which represents the strongest SHG among PM chalcogenides to date. The calculated major SHG tensor elements of compounds 1 and 2 are d31 = 224.7 and d12 = 222.1 pm/V, respectively, while the calculated d36 of AgGaS2 is only 21.2 pm/V.
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Lin, Chen-Sheng
(author)
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Cui, Hong-Hua
(author)
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Zhang, Wei-Long
(author)
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Zhang, Hao
(author)
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Chen, HongStockholms universitet,Institutionen för material- och miljökemi (MMK)(Swepub:su)hoche
(author)
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He, Zhang-Zhen
(author)
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Cheng, Wen-Dan
(author)
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Stockholms universitetInstitutionen för material- och miljökemi (MMK)
(creator_code:org_t)
Related titles
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In:Chemistry of Materials: American Chemical Society (ACS)27:3, s. 914-9220897-47561520-5002
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