OSA's Digital Library

Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 1 — Jan. 14, 2013
  • pp: 840–845

Polarized white light emitting diodes with a nano-wire grid polarizer

Jung-Chieh Su and Tong-Mao Lin  »View Author Affiliations


Optics Express, Vol. 21, Issue 1, pp. 840-845 (2013)
http://dx.doi.org/10.1364/OE.21.000840


View Full Text Article

Enhanced HTML    Acrobat PDF (1128 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

To achieve a high transmittance and extinction ratio for the polarized white light-emitting diodes (WLEDs), the package structures of polarized WLEDs that are pumped by blue LEDs are studied. A WLED is implemented using a nano-wire grid polarizer (NWGP) and forms a pumping cavity. Combining the reflection and transmission characteristics of a NWGP, the optimized package structure has an air gap between the phosphor resin and the NWGP. Specifically, the angular dependence of the chromaticity coordinates and spatial uniformity of the radiation pattern are investigated and are more uniform than those of conventional LEDs.

© 2013 OSA

OCIS Codes
(230.3670) Optical devices : Light-emitting diodes
(240.5440) Optics at surfaces : Polarization-selective devices

ToC Category:
Optical Devices

History
Original Manuscript: November 8, 2012
Revised Manuscript: December 13, 2012
Manuscript Accepted: December 27, 2012
Published: January 8, 2013

Citation
Jung-Chieh Su and Tong-Mao Lin, "Polarized white light emitting diodes with a nano-wire grid polarizer," Opt. Express 21, 840-845 (2013)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-21-1-840


Sort:  Author  |  Year  |  Journal  |  Reset  

References

  1. M. F. Weber, C. A. Stover, L. R. Gilbert, T. J. Nevitt, and A. J. Ouderkirk, “Giant birefringent optics in multilayer polymer mirrors,” Science287(5462), 2451–2456 (2000). [CrossRef] [PubMed]
  2. J. M. Jonza and D. Dubner Andrew, “Multilayer Polymeric Color-shifting Polarizer Films,” in Optical Security and Counterfeit Deterrence Techniques, SPIE-IS&T Electronic Imaging (SPIE, 2004), 256–263.
  3. S. H. Kim, J.-D. Park, and K.-D. Lee, “Fabrication of a nano-wire grid polarizer for brightness enhancement in liquid crystal display,” Nanotechnology17(17), 4436–4438 (2006). [CrossRef]
  4. X. J. Yu and H. S. Kwok, “Optical wire-grid polarizers at oblique angles of incidence,” J. Appl. Phys.93(8), 4407–4412 (2003). [CrossRef]
  5. I. Yamada, K. Takano, M. Hangyo, M. Saito, and W. Watanabe, “Terahertz wire-grid polarizers with micrometer-pitch Al gratings,” Opt. Lett.34(3), 274–276 (2009). [CrossRef] [PubMed]
  6. S.-W. Ahn, K.-D. Lee, J.-S. Kim, S. H. Kim, J.-D. Park, S.-H. Lee, and P.-W. Yoon, “Fabrication of a 50 nm half-pitch wire grid polarizer using nanoimprint lithography,” Nanotechnology16(9), 1874–1877 (2005). [CrossRef]
  7. M. F. Schubert, S. Chhajed, J. K. Kim, E. F. Schubert, and J. Cho, “Linearly polarized emission from GaInN lightemitting diodes with polarization-enhancing reflector,” Opt. Express15(18), 11213–11218 (2007). [CrossRef] [PubMed]
  8. J.-C. Su, S.-F. Song, and H.-S. Chen, “Chromaticity stability of phosphor-converted white light-emitting diodes with an optical filter,” Appl. Opt.50(2), 177–182 (2011). [CrossRef] [PubMed]
  9. Ö. Sepsi, I. Szanda, and P. Koppa, “Investigation of polarized light emitting diodes with integrated wire grid polarizer,” Opt. Express18(14), 14547–14552 (2010). [CrossRef] [PubMed]
  10. D. Kim, “Polarization characteristics of a wire-grid polarizer in a rotating platform,” Appl. Opt.44(8), 1366–1371 (2005). [CrossRef] [PubMed]
  11. F. Meng, J. Chu, H. Han, and K. Zhao, “The design of the sub-wavelength wire-grid polarizer,” in 2007 7th IEEE International Conference on Nanotechnology - IEEE-NANO 2007), 942–946.
  12. T. Liu and M. O'Neill, “Increasing LCD energy efficiency with specialty light-management films,” Inform Display24, 24–30 (2008).

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.

Figures

Fig. 1 Fig. 2 Fig. 3
 
Fig. 4 Fig. 5
 

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited