Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Phase modulation by polarization recording in bacteriorhodopsin: application to phase-shifting interferometry.

José A Ferrari1, Eugenio Garbusi, Erna M Frins

  • 1Instituto de Física, Facultad de Ingeniería, J. Herrera y Reissig 565, 11300 Montevideo, Uruguay. jferrari@fing.edu.uy

Optics Letters
|June 9, 2004
PubMed
Summary

A new phase control technique uses bacteriorhodopsin films to enable phase modulation in interferometers. This method allows for phase shifts dependent on external light polarization without mechanical components.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Transversal observation of the light-induced color-center concentration in photochromic glasses in stationary state.

Applied optics·2019
Same author

Robust interferometer with external phase-shift control.

Optics express·2017
Same author

Three-dimensional shape profiling by out-of-focus projection of colored pulse width modulation fringe patterns.

Applied optics·2017
Same author

Generalized phase-shifting algorithms: error analysis and minimization of noise propagation: erratum.

Applied optics·2016
Same author

Image segmentation by nonlinear filtering of optical Hough transform.

Applied optics·2016
Same author

Reconstruction of perspective shifts and refocusing of a three-dimensional scene from a multi-focus image stack.

Applied optics·2016

Area of Science:

  • Optics and Photonics
  • Biophysics

Background:

  • Phase-shifting interferometry is crucial for precise optical measurements.
  • Conventional methods often require mechanical components for phase modulation, limiting stability and speed.

Purpose of the Study:

  • To introduce a novel, passive phase-control method for interferometry.
  • To demonstrate phase modulation using light-induced polarization changes in bacteriorhodopsin.

Main Methods:

  • Recording the polarization state of a green light beam on a bacteriorhodopsin film.
  • Reading the recorded polarization state with a circularly polarized red laser beam.
  • Utilizing the polarization-dependent phase shift induced in the red beam.

Main Results:

Related Experiment Videos

  • The bacteriorhodopsin film induces a phase shift in the red laser beam.
  • The magnitude of the phase shift is controlled by the polarization of the external green beam.
  • The method was successfully applied to a two-beam interferometer with orthogonally polarized waves.

    • Conclusions:

    • A novel, passive phase-control method for interferometry has been developed.
    • This technique allows for phase modulation without moving parts, enhancing stability.
    • Bacteriorhodopsin films offer a promising material for optical phase control applications.