An application of the advanced high-accuracy universal polarimeter to the chiroptical measurement of an intercalated compound K 4Nb 6O 17 with high anisotropy

Masahito Tanaka, Naomichi Nakamura, Hideko Koshima, Toru Asahi

    Research output: Contribution to journalArticle

    12 Citations (Scopus)

    Abstract

    The advanced high-accuracy universal polarimeter (HAUP) method was applied to observe anisotropic and chiroptical properties of an intercalated azobenzene derivative compound into K 4Nb 6O 17 crystals. Prior to the HAUP measurement of the intercalated compound, we extended the HAUP method employing a conventional light source system composed of Xe or D 2 lamps and a monochromator instead of a laser system. The performance of the advanced HAUP system was evaluated and we determined the parasitic ellipticities of the cross polarizers, which are essential for obtaining accurate values. The optical system was applicable to simultaneously measure the linear dichroism (LD), circular dichroism (CD), linear birefringence (LB) and circular birefringence (CB) spectra of an intercalated compound in the ultraviolet and visible regions. We found the KramersKronig relation between CB and CD as well as in the case of LB and LD. Changes in LB and LD signals as obtained from HAUP measurements originated from the molecular orientation of guest molecules by the intercalation. Moreover, CB and CD signals indicated the appearance of induced chirality in the intercalated azobenzene derivative compound. These results demonstrated the usefulness of the HAUP system for evaluating the molecular conformation of chiral anisotropic specimens.

    Original languageEnglish
    Article number175303
    JournalJournal of Physics D: Applied Physics
    Volume45
    Issue number17
    DOIs
    Publication statusPublished - 2012 May 2

    Fingerprint

    Polarimeters
    Dichroism
    polarimeters
    Birefringence
    dichroism
    birefringence
    Anisotropy
    anisotropy
    Azobenzene
    Derivatives
    Monochromators
    Molecular orientation
    Chirality
    ellipticity
    Intercalation
    monochromators
    polarizers
    Electric lamps
    chirality
    Optical systems

    ASJC Scopus subject areas

    • Condensed Matter Physics
    • Electronic, Optical and Magnetic Materials
    • Acoustics and Ultrasonics
    • Surfaces, Coatings and Films

    Cite this

    An application of the advanced high-accuracy universal polarimeter to the chiroptical measurement of an intercalated compound K 4Nb 6O 17 with high anisotropy. / Tanaka, Masahito; Nakamura, Naomichi; Koshima, Hideko; Asahi, Toru.

    In: Journal of Physics D: Applied Physics, Vol. 45, No. 17, 175303, 02.05.2012.

    Research output: Contribution to journalArticle

    @article{7e44cb64cc224a39a5c61cfead6c242f,
    title = "An application of the advanced high-accuracy universal polarimeter to the chiroptical measurement of an intercalated compound K 4Nb 6O 17 with high anisotropy",
    abstract = "The advanced high-accuracy universal polarimeter (HAUP) method was applied to observe anisotropic and chiroptical properties of an intercalated azobenzene derivative compound into K 4Nb 6O 17 crystals. Prior to the HAUP measurement of the intercalated compound, we extended the HAUP method employing a conventional light source system composed of Xe or D 2 lamps and a monochromator instead of a laser system. The performance of the advanced HAUP system was evaluated and we determined the parasitic ellipticities of the cross polarizers, which are essential for obtaining accurate values. The optical system was applicable to simultaneously measure the linear dichroism (LD), circular dichroism (CD), linear birefringence (LB) and circular birefringence (CB) spectra of an intercalated compound in the ultraviolet and visible regions. We found the KramersKronig relation between CB and CD as well as in the case of LB and LD. Changes in LB and LD signals as obtained from HAUP measurements originated from the molecular orientation of guest molecules by the intercalation. Moreover, CB and CD signals indicated the appearance of induced chirality in the intercalated azobenzene derivative compound. These results demonstrated the usefulness of the HAUP system for evaluating the molecular conformation of chiral anisotropic specimens.",
    author = "Masahito Tanaka and Naomichi Nakamura and Hideko Koshima and Toru Asahi",
    year = "2012",
    month = "5",
    day = "2",
    doi = "10.1088/0022-3727/45/17/175303",
    language = "English",
    volume = "45",
    journal = "Journal Physics D: Applied Physics",
    issn = "0022-3727",
    publisher = "IOP Publishing Ltd.",
    number = "17",

    }

    TY - JOUR

    T1 - An application of the advanced high-accuracy universal polarimeter to the chiroptical measurement of an intercalated compound K 4Nb 6O 17 with high anisotropy

    AU - Tanaka, Masahito

    AU - Nakamura, Naomichi

    AU - Koshima, Hideko

    AU - Asahi, Toru

    PY - 2012/5/2

    Y1 - 2012/5/2

    N2 - The advanced high-accuracy universal polarimeter (HAUP) method was applied to observe anisotropic and chiroptical properties of an intercalated azobenzene derivative compound into K 4Nb 6O 17 crystals. Prior to the HAUP measurement of the intercalated compound, we extended the HAUP method employing a conventional light source system composed of Xe or D 2 lamps and a monochromator instead of a laser system. The performance of the advanced HAUP system was evaluated and we determined the parasitic ellipticities of the cross polarizers, which are essential for obtaining accurate values. The optical system was applicable to simultaneously measure the linear dichroism (LD), circular dichroism (CD), linear birefringence (LB) and circular birefringence (CB) spectra of an intercalated compound in the ultraviolet and visible regions. We found the KramersKronig relation between CB and CD as well as in the case of LB and LD. Changes in LB and LD signals as obtained from HAUP measurements originated from the molecular orientation of guest molecules by the intercalation. Moreover, CB and CD signals indicated the appearance of induced chirality in the intercalated azobenzene derivative compound. These results demonstrated the usefulness of the HAUP system for evaluating the molecular conformation of chiral anisotropic specimens.

    AB - The advanced high-accuracy universal polarimeter (HAUP) method was applied to observe anisotropic and chiroptical properties of an intercalated azobenzene derivative compound into K 4Nb 6O 17 crystals. Prior to the HAUP measurement of the intercalated compound, we extended the HAUP method employing a conventional light source system composed of Xe or D 2 lamps and a monochromator instead of a laser system. The performance of the advanced HAUP system was evaluated and we determined the parasitic ellipticities of the cross polarizers, which are essential for obtaining accurate values. The optical system was applicable to simultaneously measure the linear dichroism (LD), circular dichroism (CD), linear birefringence (LB) and circular birefringence (CB) spectra of an intercalated compound in the ultraviolet and visible regions. We found the KramersKronig relation between CB and CD as well as in the case of LB and LD. Changes in LB and LD signals as obtained from HAUP measurements originated from the molecular orientation of guest molecules by the intercalation. Moreover, CB and CD signals indicated the appearance of induced chirality in the intercalated azobenzene derivative compound. These results demonstrated the usefulness of the HAUP system for evaluating the molecular conformation of chiral anisotropic specimens.

    UR - http://www.scopus.com/inward/record.url?scp=84859786392&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=84859786392&partnerID=8YFLogxK

    U2 - 10.1088/0022-3727/45/17/175303

    DO - 10.1088/0022-3727/45/17/175303

    M3 - Article

    VL - 45

    JO - Journal Physics D: Applied Physics

    JF - Journal Physics D: Applied Physics

    SN - 0022-3727

    IS - 17

    M1 - 175303

    ER -