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Vertical cavity surface emitting laser with nematic and chiral liquid crystals overlay

(2013) SPIE Proceedings. 8639. p.86390E-1-86390E-6
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Abstract
A technological platform for a vertical cavity surface emitting laser (VCSEL) with tunable polarization is presented. It is realized by integrating an 850nm VCSEL chip in a liquid crystal (LC) cell that uses photo-alignment (PA) to orient the LC. Two kinds of LC are filled in and form a thin layer over the emitter of the VCSEL: nematic LC or chiral nematic LC (cLC). The VCSEL and the nematic LC layer can be electrically driven with separate electrodes. The polarization state of the laser emission can be controlled by applying an appropriate voltage over the nematic LC layer. The chiral nematic LC has a reflection band that contains the VCSEL emission wavelength, so that one circular polarized mode of the laser emission is reflected as a feedback into the VCSEL. We found that the emission from the VCSEL with cLC overlay is circularly polarized.
Keywords
cholesteric liquid crystal, nematic liquid crystal, polarization state, Vertical Cavity Surface Emitting Laser

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MLA
Xie, Yi, et al. “Vertical Cavity Surface Emitting Laser with Nematic and Chiral Liquid Crystals Overlay.” SPIE Proceedings, edited by KD Choquette and JK Guenter, vol. 8639, SPIE, 2013, pp. 86390E-1-86390E – 6, doi:10.1117/12.1000246.
APA
Xie, Y., Beeckman, J., Woestenborghs, W., panajotov, K., & Neyts, K. (2013). Vertical cavity surface emitting laser with nematic and chiral liquid crystals overlay. In K. Choquette & J. Guenter (Eds.), SPIE Proceedings (Vol. 8639, pp. 86390E-1-86390E – 6). San Francisco, CA, USA: SPIE. https://doi.org/10.1117/12.1000246
Chicago author-date
Xie, Yi, Jeroen Beeckman, Wouter Woestenborghs, Krassimir panajotov, and Kristiaan Neyts. 2013. “Vertical Cavity Surface Emitting Laser with Nematic and Chiral Liquid Crystals Overlay.” In SPIE Proceedings, edited by KD Choquette and JK Guenter, 8639:86390E-1-86390E – 6. SPIE. https://doi.org/10.1117/12.1000246.
Chicago author-date (all authors)
Xie, Yi, Jeroen Beeckman, Wouter Woestenborghs, Krassimir panajotov, and Kristiaan Neyts. 2013. “Vertical Cavity Surface Emitting Laser with Nematic and Chiral Liquid Crystals Overlay.” In SPIE Proceedings, ed by. KD Choquette and JK Guenter, 8639:86390E-1-86390E–6. SPIE. doi:10.1117/12.1000246.
Vancouver
1.
Xie Y, Beeckman J, Woestenborghs W, panajotov K, Neyts K. Vertical cavity surface emitting laser with nematic and chiral liquid crystals overlay. In: Choquette K, Guenter J, editors. SPIE Proceedings. SPIE; 2013. p. 86390E-1-86390E – 6.
IEEE
[1]
Y. Xie, J. Beeckman, W. Woestenborghs, K. panajotov, and K. Neyts, “Vertical cavity surface emitting laser with nematic and chiral liquid crystals overlay,” in SPIE Proceedings, San Francisco, CA, USA, 2013, vol. 8639, pp. 86390E-1-86390E–6.
@inproceedings{3177407,
  abstract     = {A technological platform for a vertical cavity surface emitting laser (VCSEL) with tunable polarization is presented. It is realized by integrating an 850nm VCSEL chip in a liquid crystal (LC) cell that uses photo-alignment (PA) to orient the LC. Two kinds of LC are filled in and form a thin layer over the emitter of the VCSEL: nematic LC or chiral nematic LC (cLC). The VCSEL and the nematic LC layer can be electrically driven with separate electrodes. The polarization state of the laser emission can be controlled by applying an appropriate voltage over the nematic LC layer. The chiral nematic LC has a reflection band that contains the VCSEL emission wavelength, so that one circular polarized mode of the laser emission is reflected as a feedback into the VCSEL. We found that the emission from the VCSEL with cLC overlay is circularly polarized.},
  articleno    = {86390E},
  author       = {Xie, Yi and Beeckman, Jeroen and Woestenborghs, Wouter and panajotov, Krassimir and Neyts, Kristiaan},
  booktitle    = {SPIE Proceedings},
  editor       = {Choquette, KD and Guenter, JK},
  isbn         = {9780819494085},
  issn         = {0277-786X},
  keywords     = {cholesteric liquid crystal,nematic liquid crystal,polarization state,Vertical Cavity Surface Emitting Laser},
  language     = {eng},
  location     = {San Francisco, CA, USA},
  pages        = {86390E:86390E-1--86390E:86390E-6},
  publisher    = {SPIE},
  title        = {Vertical cavity surface emitting laser with nematic and chiral liquid crystals overlay},
  url          = {http://dx.doi.org/10.1117/12.1000246},
  volume       = {8639},
  year         = {2013},
}

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