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Improvement of liquid crystal tunable lenses with weakly conductive layers using multifrequency driving

Tom Vanackere (UGent) , Tom Vandekerckhove (UGent) , Elke Claeys (UGent) , John Puthenparampil George (UGent) , Kristiaan Neyts (UGent) and Jeroen Beeckman (UGent)
(2020) OPTICS LETTERS. 45(4). p.1001-1004
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Abstract
A common technique to realize the gradient electric field profile that is required in liquid crystal tunable lenses is the use of a weakly conductive layer. Thanks to this layer, an applied voltage with a certain frequency allows us to obtain a refractive index profile that is required for the lens operation. Due to the limited degrees of freedom, however, it is not possible to avoid aberrations in a weakly conductive layer-based tunable lens for a continuously tunable focal length. In this work, we discuss the use of additional higher frequency components in the voltage signal to reduce the lens aberrations drastically. (C) 2020 Optical Society of America
Keywords
Atomic and Molecular Physics, and Optics, LARGE-APERTURE, ELECTRODE, LIGHT

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Citation

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MLA
Vanackere, Tom, et al. “Improvement of Liquid Crystal Tunable Lenses with Weakly Conductive Layers Using Multifrequency Driving.” OPTICS LETTERS, vol. 45, no. 4, 2020, pp. 1001–04, doi:10.1364/ol.383443.
APA
Vanackere, T., Vandekerckhove, T., Claeys, E., Puthenparampil George, J., Neyts, K., & Beeckman, J. (2020). Improvement of liquid crystal tunable lenses with weakly conductive layers using multifrequency driving. OPTICS LETTERS, 45(4), 1001–1004. https://doi.org/10.1364/ol.383443
Chicago author-date
Vanackere, Tom, Tom Vandekerckhove, Elke Claeys, John Puthenparampil George, Kristiaan Neyts, and Jeroen Beeckman. 2020. “Improvement of Liquid Crystal Tunable Lenses with Weakly Conductive Layers Using Multifrequency Driving.” OPTICS LETTERS 45 (4): 1001–4. https://doi.org/10.1364/ol.383443.
Chicago author-date (all authors)
Vanackere, Tom, Tom Vandekerckhove, Elke Claeys, John Puthenparampil George, Kristiaan Neyts, and Jeroen Beeckman. 2020. “Improvement of Liquid Crystal Tunable Lenses with Weakly Conductive Layers Using Multifrequency Driving.” OPTICS LETTERS 45 (4): 1001–1004. doi:10.1364/ol.383443.
Vancouver
1.
Vanackere T, Vandekerckhove T, Claeys E, Puthenparampil George J, Neyts K, Beeckman J. Improvement of liquid crystal tunable lenses with weakly conductive layers using multifrequency driving. OPTICS LETTERS. 2020;45(4):1001–4.
IEEE
[1]
T. Vanackere, T. Vandekerckhove, E. Claeys, J. Puthenparampil George, K. Neyts, and J. Beeckman, “Improvement of liquid crystal tunable lenses with weakly conductive layers using multifrequency driving,” OPTICS LETTERS, vol. 45, no. 4, pp. 1001–1004, 2020.
@article{8647364,
  abstract     = {A common technique to realize the gradient electric field profile that is required in liquid crystal tunable lenses is the use of a weakly conductive layer. Thanks to this layer, an applied voltage with a certain frequency allows us to obtain a refractive index profile that is required for the lens operation. Due to the limited degrees of freedom, however, it is not possible to avoid aberrations in a weakly conductive layer-based tunable lens for a continuously tunable focal length. In this work, we discuss the use of additional higher frequency components in the voltage signal to reduce the lens aberrations drastically. (C) 2020 Optical Society of America},
  author       = {Vanackere, Tom and Vandekerckhove, Tom and Claeys, Elke and Puthenparampil George, John and Neyts, Kristiaan and Beeckman, Jeroen},
  issn         = {0146-9592},
  journal      = {OPTICS LETTERS},
  keywords     = {Atomic and Molecular Physics,and Optics,LARGE-APERTURE,ELECTRODE,LIGHT},
  language     = {eng},
  number       = {4},
  pages        = {1001--1004},
  title        = {Improvement of liquid crystal tunable lenses with weakly conductive layers using multifrequency driving},
  url          = {http://dx.doi.org/10.1364/ol.383443},
  volume       = {45},
  year         = {2020},
}

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