Nonparabolicity and exciton effects in two-photon absorption in zincblende semiconductors |
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| Authors: | MH Weiler |
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| Institution: | Department of Physics, Massachusetts Institute of Technology, Cambridge, MA 02139, U.S.A. |
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| Abstract: | The two-photon absorption coefficient is calculated from perturbation theory for direct-gap zincblende semiconductors using exact nonparabolic energies and matrix elements. The enhancement due to exciton effects is included. The results are compared to experiment and to other theories including the tunneling or Keldysh theory. |
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