1. Ultra-wide frequency tuning range for optical properties in coaxial quantum well driven by intense laser field
- Author
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Hao Yin, Zhenqiang Chen, Siqi Zhu, Qi Guo Yang, Shibo Dai, Zhen Li, and Keyin Li
- Subjects
Range (particle radiation) ,Materials science ,Field (physics) ,Terahertz radiation ,business.industry ,Biophysics ,Finite difference method ,Physics::Optics ,General Chemistry ,Condensed Matter Physics ,Laser ,Biochemistry ,Atomic and Molecular Physics, and Optics ,law.invention ,law ,Optoelectronics ,Coaxial ,business ,Refractive index ,Quantum well - Abstract
A new approach for controlling intersubband transitions and optical properties of coaxial cylindrical quantum well is proposed. Considering the correct dressing effect for the confinement potential, the new ultra-wide tuning mechanism is based on the variation of quasibound states with the intensity of long-wavelength laser field. By means of the finite difference method, the results provide a new explanation for the anticrossing of energy levels and exhibit great potential for ultra-wide frequency tunability (ranging from terahertz to the mid-infrared region) of the optical absorption coefficient and refractive index changes by modulating the laser parameters and barrier thickness.
- Published
- 2021
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