Zobrazeno 1 - 10
of 37
pro vyhledávání: '"Kiyoaki Usami"'
Publikováno v:
Molecular Crystals and Liquid Crystals. 611:153-159
Photo-alignment efficiency of polyimide containing azobenzene in the backbone structure (Azo-PI) is significantly enhanced by exposing the precursor (polyamic acid: Azo-PAA) film to alkyl-amine vapor prior to photo-alignment. In this study, we have i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::250638d83e9b7ec539c5db2799b5b8f4
https://doi.org/10.1080/15421406.2015.1030213
https://doi.org/10.1080/15421406.2015.1030213
Autor:
Markus Wahle, Colin Ellis, Kiyoaki Usami, Ethan I. L. Jull, Peter J. M. Wyatt, John W. Goodby, Stephen J. Cowling, Helen F. Gleeson
Publikováno v:
Optics Express. 27:26799
A dichroic dye-doped liquid crystal Fresnel lens was fabricated and investigated to observe the combination of phase and amplitude modulation based focusing. An anthraquinone dichroic dye was doped into a liquid crystal host, which when in the Fresne
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3f74791ba11ace8a27e7bb36538028ab
https://doi.org/10.1364/oe.27.026799
https://doi.org/10.1364/oe.27.026799
Publikováno v:
Liquid Crystals XX.
We have investigated the pretilt angle of liquid crystals generated by photoalignment layers of polyimide containing azobenzene in the backbone structure (Azo-PI). Three different photoalignment layers were prepared by performing or not performing al
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4d3544f5ac19fd3b1f1a557b1435a82a
https://doi.org/10.1117/12.2235677
https://doi.org/10.1117/12.2235677
Publikováno v:
Molecular Crystals and Liquid Crystals. 516:38-44
We have succeeded in inducing uniform alignment of liquid crystal (LC) molecules by using end-functionalized-perfluoropolyether (PFPE) (Fluorocur® made by Liquidia Technologies) films exposed to linearly polarized ultraviolet light (LPUVL). The aver
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3cf3ebcaff855a01a91cd35876e223dd
https://doi.org/10.1080/15421400903400399
https://doi.org/10.1080/15421400903400399
Publikováno v:
Molecular Crystals and Liquid Crystals. 516:53-63
Deuterium NMR spectroscopy is widely employed to investigate the static and dynamic director alignment for low molar mass nematics contained in a thin sandwich cell. When the director is not uniformly aligned the appearance of the deuterium NMR spect
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c18703dd593262f948547cccd46719a2
https://doi.org/10.1080/15421400903400621
https://doi.org/10.1080/15421400903400621
Publikováno v:
Thin Solid Films. 518:729-734
We have investigated the photo-induced in-plane anisotropy of the films of two different polyimides (PIs) containing azobenzene in the backbone structure (Azo-PIs), which were synthesized from the same diamine, 4, 4′-diaminoazobenzene (DAAB), and t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2ad2f6ddaf3df2d4c0e51e6bc8882f08
https://doi.org/10.1016/j.tsf.2009.07.079
https://doi.org/10.1016/j.tsf.2009.07.079
Publikováno v:
Thin Solid Films. 516:2652-2655
We have succeeded in realizing an inclined homeotropic alignment of liquid crystal (LC) molecules by using photo-aligned films of a polyimide containing azobenzene in the backbone structure. To induce such an LC alignment, a side chain structure was
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::70a39a0758b78f4f5d4a62e441729fb0
https://doi.org/10.1016/j.tsf.2007.04.082
https://doi.org/10.1016/j.tsf.2007.04.082
Publikováno v:
Colloids and Surfaces A: Physicochemical and Engineering Aspects. :635-639
We have investigated the alignment of poly (9,9-dioctylfluorenyl-2,7-diyl) (PFO) induced by a photo-aligned polyimide film, which is optically, thermally, and chemically stable. The ∼30 nm-thick PFO layer was spin-coated onto a photo-aligned polyim
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::38e3ed991eb9f0774ac2ca5276fcc460
https://doi.org/10.1016/j.colsurfa.2005.10.076
https://doi.org/10.1016/j.colsurfa.2005.10.076
Publikováno v:
Thin Solid Films. :416-419
Using polarized infrared absorption spectroscopy, we have determined the orientation of the polyimide backbone structure in photo-alignment films for liquid crystals (LC). The polyimide used in this study contains azobenzene in the backbone structure
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2b8f50e9ad782d914c134503ed1b0c8f
https://doi.org/10.1016/j.tsf.2004.06.058
https://doi.org/10.1016/j.tsf.2004.06.058
Publikováno v:
Molecular Crystals and Liquid Crystals. 412:293-299
We have determined the in-plane molecular order of a polyamic acid (PAA) film irradiated with linearly polarized ultraviolet light (LPUVL), as well as that of the polyimide film obtained by thermally imidizing it. The PAA examined in this study conta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ec7ebfeb2db03a3a7f007322a86a9d2b
https://doi.org/10.1080/15421400490440020
https://doi.org/10.1080/15421400490440020