Refractive index change of a D+2 complex in GaAs/AlxGa1−xAs quantum ring
Source abstract
Abstract
The linear, nonlinear, and total relative refractive index change of a $$D+2$$ complex confined in a GaAs quantum ring and capped by a $$AlxGa1-xAs$$ matrix, under hydrostatic pressure and magnetic fields is reported. The variations of the angle between donors allow enhancing, reducing, and even nullifying the relative refractive index change. A red-shift of the relative refractive index change profiles by increasing the QR size is observed. In addition, when the concentration of the dopant material in the barrier is reduced, the electron has a higher probability of coupling with the optical field. A remarkable periodic oscillation of the relative refractive index change by increasing the magnetic field strength is obtained. The results reveal the possibility to tune the relative refractive index change within the THz band (below 20 meV).
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Semiconductor Quantum Structures and Devices · Quantum and electron transport phenomena · Photonic and Optical Devices
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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