Spectrophotometric determination of reflective liquid crystal cell parameters
Document identifier: oai:dalea.du.se:1270
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10.1063/1.2177376Keyword: Engineering and Technology,
Materials Engineering,
Teknik och teknologier,
MaterialteknikPublication year: 2006Relevant Sustainable Development Goals (SDGs):
The SDG label(s) above have been assigned by OSDG.aiAbstract: 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
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Iryna Valyuhk
Högskolan Dalarna; Materialvetenskap
Other publications
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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
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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
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Published
3
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Valyukh
Sergiy
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affiliation:
Högskolan Dalarna
Materialteknik
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Valyuhk
Iryna
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affiliation:
Högskolan Dalarna
Materialvetenskap
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0000-0001-5910-4355
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Skarp
Kent
role:
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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
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detail:
@attributes:
type: volume
number: 99
@attributes:
type: issue
number: 5
physicalDescription:
form: print
typeOfResource: text