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 Video

Updated: Jun 19, 2026

Compact Lens-less Digital Holographic Microscope for MEMS Inspection and Characterization
10:28

Compact Lens-less Digital Holographic Microscope for MEMS Inspection and Characterization

Published on: July 5, 2016

Mass-producible microscopic computer-generated holograms: microtags.

M R Descour, W C Sweatt, A K Ray-Chaudhuri

    Optics Letters
    |November 3, 2009
    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

    Physical optics modeling in soft-x-ray projection lithography.

    Applied optics·2010
    Same author

    Chemically amplified soft-x-ray resists: sensitivity, resolution, and molecular photodesorption.

    Applied optics·2010
    Same author

    Characterization of AZ PN114 resist for soft-x-ray projection lithography.

    Applied optics·2010
    Same author

    Soft-x-ray projection lithography experiments using Schwarzschild imaging optics.

    Applied optics·2010
    Same author

    Nonwalk-off multipass Twyman-Green interferometer.

    Applied optics·2010
    Same author

    A comparison of SNAP II and bispectral index monitoring in patients undergoing sedation.

    Anaesthesia·2010
    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

    Researchers created secure microscopic holograms (microtags) encoding phase and amplitude. These microtags, fabricated using extreme-ultraviolet lithography, demonstrate potential for advanced security applications.

    Area of Science:

    • Optics and Photonics
    • Materials Science
    • Nanotechnology

    Background:

    • Microscopic computer-generated holograms (microtags) offer potential for data encoding.
    • Security applications require robust and miniaturized identification methods.

    Purpose of the Study:

    • To develop and demonstrate a method for encoding both phase and amplitude information in microtags.
    • To fabricate and characterize microtags using advanced lithography techniques for security purposes.

    Main Methods:

    • Designed 8x8 cell phase-only and phase-and-amplitude microtags.
    • Fabricated microtags using extreme-ultraviolet (13.4-nm) lithography.
    • Analyzed Fraunhofer zone diffraction patterns from fabricated microtags.

    Main Results:

    More Related Videos

    Recording Ultra-Realistic Full-Color Analog Holograms for Use in a Moving Hologram Display
    09:04

    Recording Ultra-Realistic Full-Color Analog Holograms for Use in a Moving Hologram Display

    Published on: January 14, 2020

    Demonstration of Spin-Multiplexed and Direction-Multiplexed All-Dielectric Visible Metaholograms
    08:48

    Demonstration of Spin-Multiplexed and Direction-Multiplexed All-Dielectric Visible Metaholograms

    Published on: September 25, 2020

    Related Experiment Videos

    Last Updated: Jun 19, 2026

    Compact Lens-less Digital Holographic Microscope for MEMS Inspection and Characterization
    10:28

    Compact Lens-less Digital Holographic Microscope for MEMS Inspection and Characterization

    Published on: July 5, 2016

    Recording Ultra-Realistic Full-Color Analog Holograms for Use in a Moving Hologram Display
    09:04

    Recording Ultra-Realistic Full-Color Analog Holograms for Use in a Moving Hologram Display

    Published on: January 14, 2020

    Demonstration of Spin-Multiplexed and Direction-Multiplexed All-Dielectric Visible Metaholograms
    08:48

    Demonstration of Spin-Multiplexed and Direction-Multiplexed All-Dielectric Visible Metaholograms

    Published on: September 25, 2020

    • Successfully fabricated microtags measuring 80 microm x 160 microm with 0.2 microm features.
    • Obtained Fraunhofer diffraction patterns directly from microtags without additional optics.
    • Experimental diffraction patterns favorably compared with predicted patterns.

    Conclusions:

    • The developed method effectively encodes phase and amplitude in microtags.
    • Extreme-ultraviolet lithography is suitable for fabricating high-resolution microtags.
    • These microtags show promise for secure identification and anti-counterfeiting solutions.