Accessing new types of photocurrents using polarization-shaped excitation pulses

Shekhar Priyadarshi; Klaus Pierz; Mark Bieler

doi:10.1117/12.2003131

14 March 2013 Accessing new types of photocurrents using polarization-shaped excitation pulses

Shekhar Priyadarshi, Klaus Pierz, Mark Bieler

Proceedings Volume 8623, Ultrafast Phenomena and Nanophotonics XVII; 86231B (2013) https://doi.org/10.1117/12.2003131
Event: SPIE OPTO, 2013, San Francisco, California, United States

Abstract

The excitation of exciton resonances in semiconductors with certain polarization-shaped optical pulses reveals the existence of new photocurrents. For resonant excitation of excitons with an optical pulse whose linear polarization is slowly rotating versus time we observe an antisymmetric shift current linked to a second-order nonlinear tensor that is antisymmetric in its last two Cartesian indices. Moreover, for non-resonant excitation of excitons with an elliptically polarized optical pulse whose major and minor axis slowly decreases and increases in time and become minor and major axis, respectively, we observe an additional symmetric shift current being associated with a second-order nonlinear tensor that is symmetric in its last two Cartesian indices. Both of these currents vanish for continuous-wave excitation and, thus, differ from previously known shift currents.

Citation Download Citation

Shekhar Priyadarshi, Klaus Pierz, and Mark Bieler "Accessing new types of photocurrents using polarization-shaped excitation pulses", Proc. SPIE 8623, Ultrafast Phenomena and Nanophotonics XVII, 86231B (14 March 2013); https://doi.org/10.1117/12.2003131

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