Nonlinear experimental dye-doped nematic liquid crystal optical transmission spectra estimated by neural network empirical physical formulas

Basit Öğe Kaydı
dc.authoridSAN, SAIT EREN/0000-0001-5042-4555
dc.contributor.authorYildiz, Nihat
dc.contributor.authorSan, Sait Eren
dc.contributor.authorKoysal, Oguz
dc.date.accessioned2025-01-27T20:45:30Z
dc.date.available2025-01-27T20:45:30Z
dc.date.issued2010
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractIn this paper, two complementary objectives related to optical transmission spectra of nematic liquid crystals (NLCs) were achieved. First, at room temperature, for both pure and dye (DR9) doped E7 NLCs, the 10-250W halogen lamp transmission spectra (wavelength 400-1200 nm) were measured at various bias voltages. Second, because the measured spectra were inherently highly nonlinear, it was difficult to construct explicit empirical physical formulas (EPFs) to employ as transmittance functions. To avoid this difficulty, layered feedforward neural networks (LFNNs) were used to construct explicit EPFs for these theoretically unknown nonlinear NLC transmittance functions. As we theoretically showed in a previous work, a LFNN, as an excellent nonlinear function approximator, is highly relevant to EPF construction. The LFNN-EPFs efficiently and consistently estimated both the measured and yet-to-be-measured nonlinear transmittance response values. The experimentally obtained doping ratio dependencies and applied bias voltage responses of transmittance were also confirmed by LFFN-EPFs. This clearly indicates that physical laws embedded in the physical data can be faithfully extracted by the suitable LFNNs. The extraordinary success achieved with LFNN here suggests two potential applications. First, although not attempted here, these LFNN-EPFs, by such mathematical operations as derivation, integration, minimization etc., can be used to obtain further transmittance related functions of NLCs. Second, for a given NLC response function, whose theoretical nonlinear functional form is yet unknown, a suitable experimental data based LFNN-EPF can be constructed to predict the yet-to-be-measured values. (C) 2010 Elsevier B.V. All rights reserved.
dc.identifier.doi10.1016/j.optcom.2010.04.035
dc.identifier.endpage3278
dc.identifier.issn0030-4018
dc.identifier.issn1873-0310
dc.identifier.issue17
dc.identifier.scopus2-s2.0-78751626192
dc.identifier.scopusqualityQ2
dc.identifier.startpage3271
dc.identifier.urihttps://doi.org/10.1016/j.optcom.2010.04.035
dc.identifier.urihttps://hdl.handle.net/20.500.12428/24600
dc.identifier.volume283
dc.identifier.wosWOS:000279520800010
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier
dc.relation.ispartofOptics Communications
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20250125
dc.subjectNeural network
dc.subjectNematic liquid crystal
dc.subjectTransmission
dc.subjectNonlinearity
dc.titleNonlinear experimental dye-doped nematic liquid crystal optical transmission spectra estimated by neural network empirical physical formulas
dc.typeArticle

Dosyalar

Koleksiyon

WoS İndeksli Yayınlar Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu