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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 13 — Jun. 18, 2012
  • pp: 14130–14136

Photonic crystal waveguides intersection for resonant quantum dot optical spectroscopy detection

Xiaohong Song, Stefan Declair, Torsten Meier, Artur Zrenner, and Jens Förstner  »View Author Affiliations

Optics Express, Vol. 20, Issue 13, pp. 14130-14136 (2012)

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Using a finite-difference time-domain method, we theoretically investigate the optical spectra of crossing perpendicular photonic crystal waveguides with quantum dots embedded in the central rod. The waveguides are designed so that the light mainly propagates along one direction and the cross talk is greatly reduced in the transverse direction. It is shown that when a quantum dot (QD) is resonant with the cavity, strong coupling can be observed via both the transmission and crosstalk spectrum. If the cavity is far off-resonant from the QD, both the cavity mode and the QD signal can be detected in the transverse direction since the laser field is greatly suppressed in this direction. This structure could have strong implications for resonant excitation and in-plane detection of QD optical spectroscopy.

© 2012 OSA

OCIS Codes
(130.3120) Integrated optics : Integrated optics devices
(230.5590) Optical devices : Quantum-well, -wire and -dot devices

ToC Category:
Photonic Crystals

Original Manuscript: March 14, 2012
Revised Manuscript: April 8, 2012
Manuscript Accepted: May 3, 2012
Published: June 11, 2012

Xiaohong Song, Stefan Declair, Torsten Meier, Artur Zrenner, and Jens Förstner, "Photonic crystal waveguides intersection for resonant quantum dot optical spectroscopy detection," Opt. Express 20, 14130-14136 (2012)

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