Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Optimization of adaptive feedback control for ultrafast semiconductor spectroscopy

Not Accessible

Your library or personal account may give you access

Abstract

We present an experimental study of the control of ultrafast semiconductor nonlinearities by adaptive feedback optical pulse shaping. In the feedback loop, an evolutionary algorithm directs the modulation of the spectral phase of 20-fs laser pulses. In this way, control is achieved over the broadband semiconductor continuum nonlinearity as measured in differential transmission experiments. Design guidelines are given for the implementation of the evolutionary algorithm. Our results demonstrate that a feedback loop with a carefully designed algorithm can serve as a new, sensitive tool in ultrafast semiconductor spectroscopy. Moreover, an optimized feedback loop allows for the substantial enhancement of ultrafast semiconductor nonlinearities.

© 2001 Optical Society of America

Full Article  |  PDF Article
More Like This
Potential of femtosecond chirp control of ultrabroadband semiconductor continuum nonlinearities

J. Kunde, U. Siegner, S. Arlt, G. Steinmeyer, F. Morier-Genoud, and U. Keller
J. Opt. Soc. Am. B 16(12) 2285-2294 (1999)

Adaptive shaping of femtosecond polarization profiles

T. Brixner, N. H. Damrauer, G. Krampert, P. Niklaus, and G. Gerber
J. Opt. Soc. Am. B 20(5) 878-881 (2003)

Adaptive pulse compression by two-photon absorption in semiconductors

U. Siegner, M. Haiml, J. Kunde, and U. Keller
Opt. Lett. 27(5) 315-317 (2002)

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 Optica member, or as an authorized user of your institution.

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

Figures (11)

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

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

Equations (2)

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

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

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved