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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 25 — Dec. 6, 2010
  • pp: 25608–25614

Optical properties of light emitting diodes with a cascading plasmonic grating

Chih-Ming Wang, Yao-Lin Tsai, Sheng-Han Tu, Chien-Chieh Lee, Cheng-Huang Kuo, and Jenq-Yang Chang  »View Author Affiliations

Optics Express, Vol. 18, Issue 25, pp. 25608-25614 (2010)

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In this paper, the polarization dependent optical properties of InGaN/GaN multi-quantum wells (MQWs) LED with cascading plasmonic gratings are investigated using an angle-resolved photoluminescence (ARPL) spectrometer. The plasmonic gratings consist of two Ag gratings with a half-pitch displacement. The ARPL spectra of the TE-TM state present a broadband emission with resonance dips occasioned by the SP resonance while the TM-TE state presents resonance peaks with low sideband emission. The resonance properties can be tuned by modifying the geometric parameters of the plasmonic grating. The ARPL spectrum of the LED sample with pure GaN 1D grating is also measured and discussed. The investigated plasmonics LED represents resonance optical properties different from the conventional surface relief LED, which can be used in special applications.

© 2010 OSA

OCIS Codes
(240.6680) Optics at surfaces : Surface plasmons

ToC Category:
Optical Devices

Original Manuscript: October 19, 2010
Revised Manuscript: November 9, 2010
Manuscript Accepted: November 12, 2010
Published: November 22, 2010

Chih-Ming Wang, Yao-Lin Tsai, Sheng-Han Tu, Chien-Chieh Lee, Cheng-Huang Kuo, and Jenq-Yang Chang, "Optical properties of light emitting diodes with a cascading plasmonic grating," Opt. Express 18, 25608-25614 (2010)

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