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

Spatially dispersive displacement sensor utilizing a semiconductor gain chip.

Ji-Bin Horng1, Wei-Yang Chou, Seth Tsau

  • 1Laser Application Technology Center, Industrial Technology Research Institute, Tainan County, Taiwan.

Applied Optics
|February 7, 2007
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

Impact of Tumor Geometry on Dose Distribution and Delivery Accuracy in Multi-Target Stereotactic Radiosurgery.

Brain sciences·2026
Same author

A volume-controlled, anatomy-driven autoplanning strategy for whole-pelvic volumetric modulated arc therapy.

Frontiers in oncology·2026
Same author

CLARIX FLO Inhibits DRG Adhesion-Induced Neuropathic Pain Through the CD44-TRPV1 Signaling Pathway.

International journal of molecular sciences·2026
Same author

Multi-institutional validation of hypersight CBCT-based dose calculation on O-ring linacs.

Journal of applied clinical medical physics·2026
Same author

Reducing low-dose exposure in helical TomoTherapy for locally advanced left-sided breast cancer with a deformable image registration-based dose-mimicking workflow.

Journal of applied clinical medical physics·2026
Same author

Personalized intensity modulation radiation therapy auto-planning for esophageal cancer.

Scientific reports·2025
Same journal

Multifunctional reconfigurable terahertz metasurface based on vanadium dioxide phase transition: achieving broadband absorption and efficient polarization conversion.

Applied optics·2026
Same journal

High-Q-factor electromagnetically induced transparency utilizing quasi-bound states in the continuum in an all-dielectric terahertz metasurface.

Applied optics·2026
Same journal

Automated stitching interferometry for high-precision metrology of X-ray mirrors.

Applied optics·2026
Same journal

Experimental demonstration of an approach to designing a metal-dielectric DBR resonant cavity structure.

Applied optics·2026
Same journal

High-precision wavefront reconstruction from a single-shot interferogram using a physics-driven hybrid feature calibration network.

Applied optics·2026
Same journal

Ultra-high-Q Fano resonance based on coupled topological corner states in Kagome photonic crystals.

Applied optics·2026
See all related articles

A new displacement sensor uses laser diode amplified spontaneous emission (ASE) and confocal technology for precise surface position detection. This simple, high-speed sensor achieves nanometer precision with fewer components than traditional systems.

Area of Science:

  • Optics and Photonics
  • Sensor Technology
  • Surface Metrology

Background:

  • Traditional displacement sensors often involve complex optical setups and numerous components.
  • There is a need for high-precision, cost-effective displacement measurement systems with faster acquisition rates.

Purpose of the Study:

  • To develop a simply equipped displacement sensor using spatially dispersive confocal technology.
  • To demonstrate the sensor's capability for precise surface position detection.
  • To evaluate the sensor's performance metrics, including range, precision, and measurement rate.

Main Methods:

  • Utilized amplified spontaneous emission (ASE) from a laser diode.
  • Incorporated a wavelength-selective feedback structure sensitive to surface position.

Related Experiment Videos

  • Analyzed spectral shifts of multipassed amplified output ASE to determine displacement.

    • Main Results:

    • Achieved a displacement sensor with a detecting range of 4 micrometers.
    • Demonstrated precision of less than 2 nanometers.
    • Confirmed higher measurement rates compared to traditional sensors due to simpler displacement determination.

    Conclusions:

    • The developed displacement sensor offers high precision (<2 nm) and a significant measurement rate with a simplified design.
    • Spatially dispersive confocal technology combined with ASE provides a robust and efficient method for displacement sensing.
    • This sensor presents a viable alternative to complex, multi-component systems for various metrology applications.