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Volume 4, Issue 2 (International Journal of Optics and Photonics (IJOP) Vol 4, No. 2, Summer-Fall 2010)
IJOP 2010, 4(2): 121-126 |
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Jashnsaz H, Mohajerani E, Hosain Nataj N. Electrically switchable cylindrical Fresnel lens based on holographic polymer-dispersed liquid crystals using a Michelson interferometer. IJOP 2010; 4 (2) :121-126
URL: http://ijop.ir/article-1-67-en.html
URL: http://ijop.ir/article-1-67-en.html
1- Laser and Plasma Research Institute, Shahid Beheshti University
Abstract: (6851 Views)
Fabricating an electrically switchable cylindrical Fresnel lens based on holographic polymer-dispersed liquid crystals (H-PDLC) using a Michelson interferometer is reported. Simplicity of the method and possibility of fabricating different focal length lenses in a single set up are among the advantages of the method. It is demonstrated that the Fresnel structured zone plate acts as a cylindrical lens and focuses light in one dimension. Its electro-optical switching properties are also studied and it is found that at an applied electric field of E=6 Vrms/μm across the sample, focusing property of the sample eliminates with a response of about 1 ms in a reversible manner.
Keywords: Holographic optical elements, Liquid-crystal devices, Electro-optical devices, Diffractive lenses.
Type of Study: Research |
Subject:
General
Received: 2013/06/18 | Revised: 2015/03/10 | Accepted: 2015/03/10 | Published: 2015/03/10
Received: 2013/06/18 | Revised: 2015/03/10 | Accepted: 2015/03/10 | Published: 2015/03/10
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