Nonlinear refractive index changes and absorption coefficients in mesoscopic ring induced by variable effective mass

Autor:	Assafrao, Denise, de Lima, A. G., Silva, Edilberto O., Filgueiras, Cleverson
Rok vydání:	2024
Předmět:	Physics - Optics Condensed Matter - Materials Science Physics - Computational Physics
Druh dokumentu:	Working Paper
Popis:	This study explores the linear and nonlinear optical absorption coefficients (OAC) and refractive index changes (RIC) in quantum dot and quantum antidot systems with a position-dependent variable effective mass. Significant contributions to both linear and nonlinear OAC and RIC are observed. Our findings reveal that variations of the mass parameter modify the intersubband dipole matrix elements and energy intervals, leading to noticeable shifts in optical properties. The results show that higher {\gamma} values shift resonance peaks towards higher energies, while changes in the oscillator frequency result in abrupt shifts and peak diminutions. These insights provide a deeper understanding of the optical behaviors in the quantum systems under consideration, paving the way for designing devices with optimal efficiency
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2408.16746 Zobrazit plný text záznamu View this record from Arxiv