OSA's Digital Library

Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 40, Iss. 21 — Jul. 20, 2001
  • pp: 3552–3558

High-density Er-implanted GaN optical memory devices

Boon K. Lee, Robert Chih-Jen Chi, David Liang-Chiun Chao, Ji Cheng, Irving Yeong-Ning Chry, Fred R. Beyette, Jr., and Andrew J. Steckl  »View Author Affiliations


Applied Optics, Vol. 40, Issue 21, pp. 3552-3558 (2001)
http://dx.doi.org/10.1364/AO.40.003552


View Full Text Article

Enhanced HTML    Acrobat PDF (1188 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

Upconversion emission has been obtained from Er-focused ion-beam (FIB) implanted GaN. Visible green emission at the 522- and 546-nm range were excited with infrared (IR) laser sources at either 840 or 1000 nm, or with both lasers simultaneously. By implanting closely spaced patterns with the FIB, we demonstrated the concept of storing data in Er-implanted GaN. Information stored as data bits consists of patterns of implanted locations as logic 1 and unimplanted locations as logic 0. The photon upconversion process in Er ions is utilized to read the stored information. This process makes use of the IR lasers to excite visible emission. The integrated upconversion emission power was measured to be ∼40 pW when pumped by a 840-nm laser at 265 mW and by a 1000-nm laser at 208 mW. Patterns as small as 0.5 µm were implanted and read. Three-dimensional optical memory based on rare-earth-doped semiconductors could in theory approach a storage capacity of 1012 bits/cm3.

© 2001 Optical Society of America

OCIS Codes
(160.5690) Materials : Rare-earth-doped materials
(210.0210) Optical data storage : Optical data storage
(210.4680) Optical data storage : Optical memories
(230.4000) Optical devices : Microstructure fabrication
(260.3800) Physical optics : Luminescence

History
Original Manuscript: September 19, 2000
Revised Manuscript: February 27, 2001
Published: July 20, 2001

Citation
Boon K. Lee, Robert Chih-Jen Chi, David Liang-Chiun Chao, Ji Cheng, Irving Yeong-Ning Chry, Fred R. Beyette, and Andrew J. Steckl, "High-density Er-implanted GaN optical memory devices," Appl. Opt. 40, 3552-3558 (2001)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-40-21-3552

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. Figure files 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