OSA's Digital Library

Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 35, Iss. 21 — Nov. 1, 2010
  • pp: 3691–3693

Free-carrier absorption modulation in silicon nanocrystal slot waveguides

Tim Creazzo, Brandon Redding, Elton Marchena, Shouyuan Shi, and Dennis W. Prather  »View Author Affiliations


Optics Letters, Vol. 35, Issue 21, pp. 3691-3693 (2010)
http://dx.doi.org/10.1364/OL.35.003691


View Full Text Article

Acrobat PDF (301 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

Free-carrier absorption (FCA) has proven to be an important obstacle in the development of a silicon-based laser; however, FCA may serve as a potential advantage in active silicon-based switches or modulators. In this work, we present FCA modulation in slot waveguides with silicon nanocrystals (Si-ncs) embedded in SiO2 as the low-index slot material. Slot waveguides were fabricated with and without Si-ncs, and the presence of Si-ncs was shown to increase the pump-induced FCA loss in the waveguides by a factor of 4.5. We modeled the Si-nc material using a four-level rate equation analysis to estimate the excited population of Si-ncs, allowing us to extract a value of 2.6×10−17cm2 for the FCA cross section of the Si-nc material.

© 2010 Optical Society of America

OCIS Codes
(230.3120) Optical devices : Integrated optics devices
(230.5590) Optical devices : Quantum-well, -wire and -dot devices
(230.7370) Optical devices : Waveguides
(250.7360) Optoelectronics : Waveguide modulators
(250.6715) Optoelectronics : Switching

ToC Category:
Optical Devices

History
Original Manuscript: June 17, 2010
Revised Manuscript: September 8, 2010
Manuscript Accepted: September 29, 2010
Published: October 28, 2010

Citation
Tim Creazzo, Brandon Redding, Elton Marchena, Shouyuan Shi, and Dennis W. Prather, "Free-carrier absorption modulation in silicon nanocrystal slot waveguides," Opt. Lett. 35, 3691-3693 (2010)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-35-21-3691

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
Log in to access OSA Member Subscription

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
Log in to access OSA Member Subscription

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
Log in to access OSA Member Subscription

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited