Journal of the Optical Society of Korea

Optical Society of Korea (한국광학회)
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Peak-to-zero modulation of optical absorption via electrically controllable quantum interference

  • Lee, Byoung-Ho (School of Electrical Engineering, Seoul National University) ;
  • Kim, Kyoung-Youm (School of Electrical Engineering, Seoul National University)
  • Received : 2002.03.08
  • Published : 2002.06.01
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Abstract

We propose a modulation scheme of optical absorption in a coupled asymmetric quantum well (QW) structure via electrically controllable quantum interference. It is based on the parallel-perpendicular energy coupling effect. We show that by applying an external electric Held in the parallel direction (to the QW layers), we can obtain a maximum (peak-type) absorption at a specific wavelength where absorption cancellation would occur due to electrically induced transparency without such an external Held .

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References

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