OSA's Digital Library

Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 48, Iss. 28 — Oct. 1, 2009
  • pp: 5259–5265

Spatial phase filtering based on the intensity-dependent refractive index of PbS nanocomposite film

Pushpa Ann Kurian and C. Vijayan  »View Author Affiliations


Applied Optics, Vol. 48, Issue 28, pp. 5259-5265 (2009)
http://dx.doi.org/10.1364/AO.48.005259


View Full Text Article

Enhanced HTML    Acrobat PDF (318 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

We demonstrate the use of stable films containing PbS nanocrystals as media for self-adaptive phase filtering in phase contrast imaging of transparent objects by a cost-effective exploitation of nonlinear optical refraction in a simple, all-optical, and self-adjusting 4 f imaging system. The optical nonlinearity is characterized by z-scan technique using a continuous wave He–Ne laser as the excitation source. The mechanism of nonlinearity in this case is mainly due to the nonlocal thermo-optical interaction between the laser beam and the sample. The value of nonlinear refractive index coefficient is found to be 3.5 × 10 7 cm 2 / W . The nanocomposite material shows a thermal lens effect and is a potential candidate for phase contrast imaging.

© 2009 Optical Society of America

OCIS Codes
(190.4400) Nonlinear optics : Nonlinear optics, materials
(100.4997) Image processing : Pattern recognition, nonlinear spatial filters

ToC Category:
Image Processing

History
Original Manuscript: May 5, 2009
Revised Manuscript: August 25, 2009
Manuscript Accepted: September 1, 2009
Published: September 21, 2009

Citation
Pushpa Ann Kurian and C. Vijayan, "Spatial phase filtering based on the intensity-dependent refractive index of PbS nanocomposite film," Appl. Opt. 48, 5259-5265 (2009)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-48-28-5259

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