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

Peering into darkness with a vortex spatial filter.

G A Swartzlander

    Optics Letters
    |November 28, 2007
    PubMed
    Summary
    This summary is machine-generated.

    This study introduces using an optical vortex

    Related Experiment Videos

    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

    Sub-Rayleigh optical vortex coronagraphy.

    Optics express·2012
    Same author

    Optical vortex trapping of particles.

    Optics letters·2009
    Same author

    Dark-soliton prototype devices: analysis by using direct-scattering theory.

    Optics letters·2009
    Same author

    Spectral measurement of the nonlinear refractive index in ZnSe using self-bending of a pulsed laser beam.

    Optics letters·2009
    Same author

    Direct measurement of the transverse velocity of dark spatial solitons.

    Optics letters·2009
    Same author

    Self-bending of a cw laser beam in sodium vapor.

    Optics letters·2009
    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

    Area of Science:

    • Optics and Photonics
    • Signal Processing

    Background:

    • Detecting weak signals amidst bright light is challenging.
    • Coherent sources often overwhelm faint background signals.

    Purpose of the Study:

    • To propose a novel method for detecting weak background signals.
    • To utilize the dark core of an optical vortex as a detection window.

    Main Methods:

    • Employing an optical vortex with a dark central core.
    • Exploiting the vortex's structure to shield against a bright coherent source.

    Main Results:

    • Achieving signal enhancements of at least 7 orders of magnitude.
    • Demonstrating the method's effectiveness for specific applications.

    Conclusions:

    • The proposed method offers significant signal enhancement for weak background detection.
    • Optical vortex dark cores provide a powerful tool for overcoming glare in signal detection.