Abstract

We numerically investigate the optical rectification coefficients (ORCs), spin density distributions, and electronic properties of cylindrical quantum dots in the presence of Rashba spin-orbit interactions. Effects of spin-orbit interaction strength, effective mass, and quantum dot radius are studied. The resulting coupled differential equations are solved by using a blocked Hamiltonian approach, in which the enlarged Hamiltonian matrix elements are obtained through a finite-difference discretization schema. We observe that in quantum dots with small radii, the energy dependence on effective mass is very important. We can also control the spin density and also probability density distributions by means of the effective mass and quantum dot radius. By increasing the Rashba parameter, a redshift occurs in the ORC peak positions. This redshift is greater in systems with greater effective masses. Finally, for a fixed Rashba parameter, by increasing the effective mass, the ORC peak positions undertake a redshift.

© 2017 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Temperature dependence of spin photocurrent spectra induced by Rashba- and Dresselhaus-type circular photogalvanic effect at inter-band excitation in InGaAs/AlGaAs quantum wells

Jinling Yu, Shuying Cheng, Yunfeng Lai, Qiao Zheng, Laipan Zhu, Yonghai Chen, and Jun Ren
Opt. Express 23(21) 27250-27259 (2015)

Orbital and spin dynamics of intraband electrons in quantum rings driven by twisted light

G. F. Quinteiro, P. I. Tamborenea, and J. Berakdar
Opt. Express 19(27) 26733-26741 (2011)

Optical bistability induced by spin–orbit coupling in the carbon-nanotube quantum dots

Wei Liu, Hongjun Zhang, Hui Sun, Qiaolin Zhang, and Dandan Wang
Appl. Opt. 55(5) 1090-1094 (2016)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (4)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Tables (1)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (14)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription