Electrically Controlled Liquid Crystal Twist-Planar Fresnel Lens.
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| Title: | Electrically Controlled Liquid Crystal Twist-Planar Fresnel Lens. |
|---|---|
| Authors: | Mel'nikova, E. A.1 (AUTHOR) melnikova@bsu.by, Panteleeva, E. P.1 (AUTHOR), Gorbach, D. V.1 (AUTHOR), Tolstik, A. L.1 (AUTHOR), Rushnova, I. I.1 (AUTHOR), Kabanova, O. S.1 (AUTHOR) |
| Source: | Journal of Applied Spectroscopy. Nov2024, Vol. 91 Issue 5, p1072-1077. 6p. |
| Subjects: | Nematic liquid crystals, Fresnel diffraction, Fresnel lenses, Liquid crystals, Laser beams |
| Abstract: | Based on the method of photo-orientation of the azo-dye AtA-2, an electrically controlled Fresnel lens has been developed which is a microstructured liquid crystal element made up of alternating rings with twist- and planar orientations of the liquid crystal director. It is shown that the use of a control voltage makes it possible to control the efficiency of the focusing of laser radiation, as well as to turn off the lens. An optimum control voltage (~3 V) is determined at which a maximum focal efficiency and satisfactory quality of image construction over a wide spectral range from 530 nm to 1.1 μm are attained. [ABSTRACT FROM AUTHOR] |
| Copyright of Journal of Applied Spectroscopy is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Links: – Type: pdflink Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 181201976 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Electrically Controlled Liquid Crystal Twist-Planar Fresnel Lens. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Mel'nikova%2C+E%2E+A%2E%22">Mel'nikova, E. A.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> melnikova@bsu.by</i><br /><searchLink fieldCode="AR" term="%22Panteleeva%2C+E%2E+P%2E%22">Panteleeva, E. P.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Gorbach%2C+D%2E+V%2E%22">Gorbach, D. V.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Tolstik%2C+A%2E+L%2E%22">Tolstik, A. L.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Rushnova%2C+I%2E+I%2E%22">Rushnova, I. I.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Kabanova%2C+O%2E+S%2E%22">Kabanova, O. S.</searchLink><relatesTo>1</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Journal+of+Applied+Spectroscopy%22">Journal of Applied Spectroscopy</searchLink>. Nov2024, Vol. 91 Issue 5, p1072-1077. 6p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Nematic+liquid+crystals%22">Nematic liquid crystals</searchLink><br /><searchLink fieldCode="DE" term="%22Fresnel+diffraction%22">Fresnel diffraction</searchLink><br /><searchLink fieldCode="DE" term="%22Fresnel+lenses%22">Fresnel lenses</searchLink><br /><searchLink fieldCode="DE" term="%22Liquid+crystals%22">Liquid crystals</searchLink><br /><searchLink fieldCode="DE" term="%22Laser+beams%22">Laser beams</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Based on the method of photo-orientation of the azo-dye AtA-2, an electrically controlled Fresnel lens has been developed which is a microstructured liquid crystal element made up of alternating rings with twist- and planar orientations of the liquid crystal director. It is shown that the use of a control voltage makes it possible to control the efficiency of the focusing of laser radiation, as well as to turn off the lens. An optimum control voltage (~3 V) is determined at which a maximum focal efficiency and satisfactory quality of image construction over a wide spectral range from 530 nm to 1.1 μm are attained. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Journal of Applied Spectroscopy is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1007/s10812-024-01822-9 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 6 StartPage: 1072 Subjects: – SubjectFull: Nematic liquid crystals Type: general – SubjectFull: Fresnel diffraction Type: general – SubjectFull: Fresnel lenses Type: general – SubjectFull: Liquid crystals Type: general – SubjectFull: Laser beams Type: general Titles: – TitleFull: Electrically Controlled Liquid Crystal Twist-Planar Fresnel Lens. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Mel'nikova, E. A. – PersonEntity: Name: NameFull: Panteleeva, E. P. – PersonEntity: Name: NameFull: Gorbach, D. V. – PersonEntity: Name: NameFull: Tolstik, A. L. – PersonEntity: Name: NameFull: Rushnova, I. I. – PersonEntity: Name: NameFull: Kabanova, O. S. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 11 Text: Nov2024 Type: published Y: 2024 Identifiers: – Type: issn-print Value: 00219037 Numbering: – Type: volume Value: 91 – Type: issue Value: 5 Titles: – TitleFull: Journal of Applied Spectroscopy Type: main |
| ResultId | 1 |
