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

Spiral interferometry.

Severin Fürhapter1, Alexander Jesacher, Stefan Bernet

  • 1Division of Biomedical Physics, Innsbruck Medical University, Müllerstrasse 44, A-6020 Innsbruck, Austria.

Optics Letters
|August 12, 2005
PubMed
Summary
This summary is machine-generated.

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

Refractive Index Mapping below the Diffraction Limit via Single Molecule Localization Microscopy.

ACS nano·2025
Same author

Coded wavefront sensing for video-rate quantitative phase imaging and tomography: validation with digital holographic microscopy.

Optics express·2025
Same author

Joint estimation of point spread function and molecule positions in SMLM informed from multiple planes.

Biomedical optics express·2025
Same author

Confocal Raman Microscopy with Adaptive Optics.

ACS photonics·2025
Same author

Quantitative phase imaging with optical differentiation by spatially variable amplitude filters.

Optics letters·2025
Same author

Low cross-talk optical addressing of trapped-ion qubits using a novel integrated photonic chip.

Light, science & applications·2024
Same journal

Gaussian-modulated continuous-variable quantum key distribution over 60 km fiber using an integrated silicon photonic receiver.

Optics letters·2026
Same journal

E2E-OCT: end-to-end joint learning model using optical coherence tomography images for vocal cord leukoplakia diagnosis.

Optics letters·2026
Same journal

Holographic generation of panoramic 3D scenes by concave ellipsoidal mirror reflection.

Optics letters·2026
Same journal

Dual-pilot phase recovery with pair-wise maximum-ratio combining for coherent PONs.

Optics letters·2026
Same journal

Mapping the whispering gallery modes of a CaF<sub>2</sub> disk resonator with half-tapered fibers to estimate the fundamental mode volume.

Optics letters·2026
Same journal

Quantitative estimation of deep-subwavelength scale via dark-field scattering axial energy concentration decay profiles.

Optics letters·2026
See all related articles

A novel spiral phase element in optical interferometry allows distinguishing elevations and depressions. This enables complete sample profile reconstruction from a single exposure for high-speed metrology.

Area of Science:

  • Optical physics
  • Metrology
  • Microscopy

Background:

  • Traditional interferometry struggles to differentiate between elevations and depressions.
  • Standard interferograms use closed contour lines, limiting 3D profile reconstruction.

Purpose of the Study:

  • To introduce a modified optical interferometry technique using a spiral phase element.
  • To overcome limitations of traditional interferometry in distinguishing surface features.
  • To enable high-speed metrology and complete sample profile reconstruction.

Main Methods:

  • Incorporation of a spiral phase element into a standard microscope's beam path.
  • Generation of spiral-shaped interference fringes instead of traditional contour lines.
  • Reconstruction of a complete sample profile from a single exposure.

Related Experiment Videos

Main Results:

  • The spiral phase element modifies optical interferometry, producing spiral interferograms.
  • This method successfully distinguishes between elevations and depressions in samples.
  • A complete sample profile is reconstructed from a single exposure.

Conclusions:

  • The spiral phase element offers a significant advancement in optical interferometry.
  • The technique allows for high-speed metrology applications, potentially using a single laser pulse.
  • The method is robust, stable against environmental noise, and easy to implement without a separated reference beam.