OSA's Digital Library

Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Henry M. Van Driel
  • Vol. 24, Iss. 8 — Aug. 1, 2007
  • pp: 1874–1885

Optimizing two-photon absorption for volumetric optical data storage

N. S. Makarov, A. Rebane, M. Drobizhev, H. Wolleb, and H. Spahni  »View Author Affiliations


JOSA B, Vol. 24, Issue 8, pp. 1874-1885 (2007)
http://dx.doi.org/10.1364/JOSAB.24.001874


View Full Text Article

Acrobat PDF (797 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

We study the requirements imposed on organic photochromes for two-photon absorption (2PA) terabyte volumetric optical storage. We present a quantitative model of signal-to-noise ratio (SNR) and signal-to-background ratio (SBR) when 2PA-induced photochromic switching is used for writing, and 2PA-induced fluorescence is used for readout. We show that single-channel data access rate >100 MHz at minimum SNR>4 implies minimum intrinsic 2PA cross section, σ2>103GM. Resonance enhancement allows σ2∼105GM, however, it also lowers SBR due to thermally-activated one-photon absorption. We model the critical trade-off between SNR and SBR as a function of laser frequency, intensity, and temperature. Acceptable parameter space may be achieved by careful choice of the above variables. We perform experiments with nonsymmetrical free-base phthalocyanines, which show efficient 2PA-induced photochromic switching between two tautomer forms and large σ2∼104GM, and show good potential for high-capacity data storage.

© 2007 Optical Society of America

OCIS Codes
(190.4710) Nonlinear optics : Optical nonlinearities in organic materials
(210.2860) Optical data storage : Holographic and volume memories
(300.6410) Spectroscopy : Spectroscopy, multiphoton

ToC Category:
Nonlinear Optics

History
Original Manuscript: October 27, 2006
Revised Manuscript: February 16, 2007
Manuscript Accepted: February 20, 2007
Published: July 19, 2007

Citation
N. S. Makarov, A. Rebane, M. Drobizhev, H. Wolleb, and H. Spahni, "Optimizing two-photon absorption for volumetric optical data storage," J. Opt. Soc. Am. B 24, 1874-1885 (2007)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-24-8-1874

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