Optical injection of spin current in direct bandgap GeSn

Gabriel Fettu; John Sipe; Oussama Moutanabbir

doi:10.1117/12.2594793

2 August 2021 Optical injection of spin current in direct bandgap GeSn

Gabriel Fettu, John Sipe, Oussama Moutanabbir

Proceedings Volume 11806, Quantum Nanophotonic Materials, Devices, and Systems 2021; 118060B (2021) https://doi.org/10.1117/12.2594793
Event: SPIE Nanoscience + Engineering, 2021, San Diego, California, United States

Abstract

Recent progress in the development of direct band gap GeSn is exploited to investigate the optical injection and coherent control of spin currents in this group IV semiconductor. The analysis of these properties could provide essential information for future innovative optical photon-to-spin conversion interfaces, long-sought after for entanglement distribution. A 30-band k•p model is used to evaluate the electronic properties in the material for a relatively wide range of energies, and a linear tetrahedron method is employed for the Brillouin zone integrations. Carrier, spin, current, and spin current injection rates are calculated for a bichromatic field of frequencies ω and 2ω.

Conference Presentation

Citation Download Citation

Gabriel Fettu, John Sipe, and Oussama Moutanabbir "Optical injection of spin current in direct bandgap GeSn", Proc. SPIE 11806, Quantum Nanophotonic Materials, Devices, and Systems 2021, 118060B (2 August 2021); https://doi.org/10.1117/12.2594793

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available