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자연과학대학
물리학전공
Journal papers
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Holographic inscription of helical wavefronts in a liquid crystal polarization grating
Title
Holographic inscription of helical wavefronts in a liquid crystal polarization grating
Authors
Choi H.
;
Woo J.H.
;
Wu J.W.
;
Kim D.-W.
;
Lim T.-K.
;
Song S.H.
Ewha Authors
우정원
SCOPUS Author ID
우정원
Issue Date
2007
Journal Title
Applied Physics Letters
ISSN
0003-6951
Citation
Applied Physics Letters vol. 91, no. 14
Indexed
SCI; SCIE; SCOPUS
Document Type
Article
Abstract
A space-varying polarization hologram (PH) grating is fabricated in a nematic liquid crystal (LC) cell with azo-side-chain polymer alignment layers. The polarization-sensitive photoisomerization property of azo-side-chain polymer is utilized to inscribe the PH in a LC cell. Both transmission and reflection holographic configurations are adopted in fabrication. The transmission PH made by the circular orthogonal polarizations exhibits the polarization-controlled Laguerre-Gaussian beam generation, while the reflection PH made by the linear orthogonal polarizations generates a variety of Laguerre-Gaussian beam, though not polarization controlled. © 2007 American Institute of Physics.
DOI
10.1063/1.2793173
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