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Modeling optical modes of in-plane liquid crystal lasers

Jeroen Beeckman (UGent) , Inge Nys (UGent) and Kristiaan Neyts (UGent)
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Abstract
Lasing in liquid crystals has been demonstrated in numerous con gurations and material systems. In most reports the laser light is emitted perpendicular to the liquid crystal layer, using a chiral liquid crystal layer which exhibits a helical structure with a periodicity that gives rise to a stop band in the visible spectrum. The emission of light can then be modeled with one-dimensional models with reasonable accuracy. In the last few years also in-plane lasers have been demonstrated, for example by using a lying helix arrangement. The accurate optical modeling of the light generation in such systems is complex because the materials are optically anisotropic and the con guration should be modeled as two-dimensional. Advanced optical methods are necessary. For these simulations we rely on nite-element calculations of the optical modes in periodic two-dimensional structures including full position dependent anisotropy. The optical modes in a lying helix con guration are calculated as a proof-of-principle for this simulation method. Several interesting features of the optical modes in these structures are found.
Keywords
lasers, chiral liquid crystals, Finite element method, liquid crystals

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Chicago
Beeckman, Jeroen, Inge Nys, and Kristiaan Neyts. 2014. “Modeling Optical Modes of In-plane Liquid Crystal Lasers.” In Proceedings of SPIE, ed. Liang-Chy Chien, Antonio M Figueiredo Neto, Kristiaan Neyts, and Masanori Ozaki. Vol. 9004. SPIE.
APA
Beeckman, Jeroen, Nys, I., & Neyts, K. (2014). Modeling optical modes of in-plane liquid crystal lasers. In L.-C. Chien, A. M. Figueiredo Neto, K. Neyts, & M. Ozaki (Eds.), Proceedings of SPIE (Vol. 9004). Presented at the Conference on Emerging Liquid Crystal Technologies IX, SPIE.
Vancouver
1.
Beeckman J, Nys I, Neyts K. Modeling optical modes of in-plane liquid crystal lasers. In: Chien L-C, Figueiredo Neto AM, Neyts K, Ozaki M, editors. Proceedings of SPIE. SPIE; 2014.
MLA
Beeckman, Jeroen, Inge Nys, and Kristiaan Neyts. “Modeling Optical Modes of In-plane Liquid Crystal Lasers.” Proceedings of SPIE. Ed. Liang-Chy Chien et al. Vol. 9004. SPIE, 2014. Print.
@inproceedings{4300648,
  abstract     = {Lasing in liquid crystals has been demonstrated in numerous con\unmatched{000c}gurations and material systems. In most reports the laser light is emitted perpendicular to the liquid crystal layer, using a chiral liquid crystal layer which exhibits a helical structure with a periodicity that gives rise to a stop band in the visible spectrum. The emission of light can then be modeled with one-dimensional models with reasonable accuracy. In the last few years also in-plane lasers have been demonstrated, for example by using a lying helix arrangement. The accurate optical modeling of the light generation in such systems is complex because the materials are optically anisotropic and the con\unmatched{000c}guration should be modeled as two-dimensional. Advanced optical methods are necessary. For these simulations we rely on \unmatched{000c}nite-element calculations of the optical modes in periodic two-dimensional structures including full position dependent anisotropy. The optical modes in a lying helix con\unmatched{000c}guration are calculated as a proof-of-principle for this simulation method. Several interesting features of the optical modes in these structures are found.},
  articleno    = {900407},
  author       = {Beeckman, Jeroen and Nys, Inge and Neyts, Kristiaan},
  booktitle    = {Proceedings of SPIE},
  editor       = {Chien, Liang-Chy  and Figueiredo Neto, Antonio M and Neyts, Kristiaan and Ozaki, Masanori },
  isbn         = {9780819499172},
  issn         = {0277-786X},
  keyword      = {lasers,chiral liquid crystals,Finite element method,liquid crystals},
  language     = {eng},
  location     = {San Francisco, CA, USA},
  pages        = {9},
  publisher    = {SPIE},
  title        = {Modeling optical modes of in-plane liquid crystal lasers},
  url          = {http://dx.doi.org/10.1117/12.2044452},
  volume       = {9004},
  year         = {2014},
}

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