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LIGHT PROPAGATION IN PLANAR TOTAL INTERNAL REFLECTION WAVEGUIDE WITH QUANTUM WELL

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The paper presents theoretical study of an electromagnetic wave propagation in a planar total internal reflection waveguide with a centrally located quantum well. The calculation is based on transfer matrix method application that gives the possibility to describe the propagation of light in layered structures and calculate the reflection spectrum having related it with the eigenmodes of the system. The prediction is made that the interaction appears between the excitons of the quantum well and the electromagnetic wave in the form of the anticrossing in the reflection spectrum. This behavior is a characteristic feature of such quasiparticles as exciton-polaritons. It is predicted that the value of the Rabi splitting is about several millielectronvolts for exciton-polaritons in the total internal reflection waveguide with a GaAs quantum well. It is also shown that the interaction between the excitons of the quantum well and TE and TM polarized electromagnetic waves is different that can be seen in the reflection spectrum of the structure and agrees with the optical selection rules. As a result, the alternative exciton-polariton system is proposed, which in return can be used in the modern semiconductor industry as a system for information transfer.

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