Spectrophotometric determination of reflective liquid crystal cell parameters

Document identifier: oai:dalea.du.se:1270
Access full text here:10.1063/1.2177376
Keyword: Engineering and Technology, Materials Engineering, Teknik och teknologier, Materialteknik
Publication year: 2006
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Abstract:

We introduce a method for the determination of the optical retardation, its wavelength dispersion, the cell twist angle, and the orientation of the input director in a reflective liquid crystal (LC) cell. These parameters are found from the extremes of a characteristic function defined as a sum of two spectral reflectivities of the LC cell placed between a pair of linear polarizers. The reflectivities are measured for two cell orientations, one of which is arbitrary and the other one is turned through 45°. Both theoretical analysis and experimental procedures are presented. Excellent agreement between the experiment and our theory has been found. The proposed method can be applied to the measurement of reflective LC cells with small and large cell gaps, as well as cells with small and large twist angles.

Authors

Sergiy Valyukh

Högskolan Dalarna; Materialteknik
Other publications >>

Iryna Valyuhk

Högskolan Dalarna; Materialvetenskap
Other publications >>

Kent Skarp

Högskolan Dalarna; Materialteknik
Other publications >>

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    header: 
        identifier: oai:dalea.du.se:1270
        datestamp: 2021-04-15T13:37:26Z
        setSpec: SwePub-du
    metadata: 
        mods: 
            @attributes: 
                version: 3.7
            recordInfo: 
                recordContentSource: du
                recordCreationDate: 2005-07-01
            identifier: 
                http://urn.kb.se/resolve?urn=urn:nbn:se:du-1270
                10.1063/1.2177376
            titleInfo: 
                @attributes: 
                    lang: eng
                title: Spectrophotometric determination of reflective liquid crystal cell parameters
            abstract: 
We introduce a method for the determination of the optical retardation its wavelength dispersion the cell twist angle and the orientation of the input director in a reflective liquid crystal (LC) cell. These parameters are found from the extremes of a characteristic function defined as a sum of two spectral reflectivities of the LC cell placed between a pair of linear polarizers. The reflectivities are measured for two cell orientations one of which is arbitrary and the other one is turned through 45°. Both theoretical analysis and experimental procedures are presented. Excellent agreement between the experiment and our theory has been found. The proposed method can be applied to the measurement of reflective LC cells with small and large cell gaps as well as cells with small and large twist angles.

            subject: 
                    @attributes: 
                        lang: eng
                        authority: uka.se
                    topic: 
                        Engineering and Technology
                        Materials Engineering
                    @attributes: 
                        lang: swe
                        authority: uka.se
                    topic: 
                        Teknik och teknologier
                        Materialteknik
            language: 
                languageTerm: eng
            genre: 
                publication/journal-article
                ref
            note: 
                Published
                3
            name: 
                    @attributes: 
                        type: personal
                    namePart: 
                        Valyukh
                        Sergiy
                    role: 
                        roleTerm: aut
                    affiliation: 
                        Högskolan Dalarna
                        Materialteknik
                    nameIdentifier: 0000-0002-5966-590x
                    @attributes: 
                        type: personal
                        authority: du
                    namePart: 
                        Valyuhk
                        Iryna
                    role: 
                        roleTerm: aut
                    affiliation: 
                        Högskolan Dalarna
                        Materialvetenskap
                    nameIdentifier: 
                        ivl
                        0000-0001-5910-4355
                    @attributes: 
                        type: personal
                        authority: du
                    namePart: 
                        Skarp
                        Kent
                    role: 
                        roleTerm: aut
                    affiliation: 
                        Högskolan Dalarna
                        Materialteknik
                    nameIdentifier: ksa
            originInfo: 
                dateIssued: 2006
                publisher: American Institute of Physics
            relatedItem: 
                @attributes: 
                    type: host
                titleInfo: 
                    title: Journal of applied physiology
                identifier: 
                    8750-7587
                    1522-1601
                part: 
                    detail: 
                            @attributes: 
                                type: volume
                            number: 99
                            @attributes: 
                                type: issue
                            number: 5
            physicalDescription: 
                form: print
            typeOfResource: text