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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 8 — Apr. 15, 2014
  • pp: 2423–2426

Partially directional microdisk laser with two Rayleigh scatterers

Minkyung Kim, Kyungmook Kwon, Jaeho Shim, Youngho Jung, and Kyoungsik Yu  »View Author Affiliations


Optics Letters, Vol. 39, Issue 8, pp. 2423-2426 (2014)
http://dx.doi.org/10.1364/OL.39.002423


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Abstract

We report a partially directional microdisk semiconductor laser with subwavelength-scale boundary perturbations for asymmetric backscattering of counterpropagating whispering gallery modes. Unlike the previous approaches based on optical bistability, the directionality and chirality of the laser modes can be fine-tuned and partially controlled by adjusting the dimension, shape, and relative positions of Rayleigh scatterers on the microdisk perimeter. The controlled directionality is investigated using numerical simulations and experiments for wavelength-scale microdisk resonators with an azimuthal mode number of 5.

© 2014 Optical Society of America

OCIS Codes
(140.3410) Lasers and laser optics : Laser resonators
(140.5960) Lasers and laser optics : Semiconductor lasers
(230.5590) Optical devices : Quantum-well, -wire and -dot devices
(290.5870) Scattering : Scattering, Rayleigh

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: March 3, 2014
Revised Manuscript: March 16, 2014
Manuscript Accepted: March 16, 2014
Published: April 10, 2014

Citation
Minkyung Kim, Kyungmook Kwon, Jaeho Shim, Youngho Jung, and Kyoungsik Yu, "Partially directional microdisk laser with two Rayleigh scatterers," Opt. Lett. 39, 2423-2426 (2014)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-39-8-2423

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