Strong 8.2 μm infrared intersubband absorption in doped GaAs/AlAs quantum well waveguides

B. F. Levine, R. J. Malik, J. Walker, K. K. Choi, C. G. Bethea, D. A. Kleinman, J. M. Vandenberg

Applied Physics Letters · 1987 · 329 citations · 14 references

Concepts

Abstract

We have measured the infrared intersubband absorption at 8.2 μm in doped GaAs/AlAs quantum well superlattices. Waveguide geometry experiments demonstrate strong absorption with 95% of the incident infrared energy being absorbed.

References

14