Microscopic theoretical analysis of optically generated injection currents in semiconductor quantum wells

Huynh Thanh Duc; Jens Förstner; Torsten Meier

doi:10.1117/12.840388

1 March 2010 Microscopic theoretical analysis of optically generated injection currents in semiconductor quantum wells

Huynh Thanh Duc, Jens Förstner, Torsten Meier

Proceedings Volume 7600, Ultrafast Phenomena in Semiconductors and Nanostructure Materials XIV; 76000S (2010) https://doi.org/10.1117/12.840388
Event: SPIE OPTO, 2010, San Francisco, California, United States

Abstract

A microscopic theory that describes injection currents in GaAs quantum wells is presented. 14 × 14 band k.p theory is used to compute the band structure including anisotropy and spin-orbit interaction. Transient injection currents are obtained via numerical solutions of the semiconductor Bloch equations. Depending on the growth direction of the considered quantum well system and the propagation and polarization directions of the incident light beam, it is possible to generate charge and/or spin photocurrents on ultrashort time scales. The dependence of the photocurrents on the excitation conditions is computed and discussed.

Citation Download Citation

Huynh Thanh Duc, Jens Förstner, and Torsten Meier "Microscopic theoretical analysis of optically generated injection currents in semiconductor quantum wells", Proc. SPIE 7600, Ultrafast Phenomena in Semiconductors and Nanostructure Materials XIV, 76000S (1 March 2010); https://doi.org/10.1117/12.840388

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