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  • Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference
  • Technical Digest (Optica Publishing Group, 2003),
  • paper CTuY4

Luminescence rings in coupled quantum wells

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Abstract

In InGaAs quantum wells, we observe an effect by which luminescence from excitons appears as a ring of hundreds of micrometers radius centered on the laser excitation spot, and the intervening region is dark.

© 2003 Optical Society of America

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