Search
Menu
LPC/Photonics.com - Stay-Up-To-Date

Laser Acts as Near-Field Scanning Optical Microscope Probe

Facebook X LinkedIn Email
Daniel S. Burgess

Researchers in China have demonstrated a near-field scanning optical microscope that employs a very small aperture laser diode as the probe, rather than a tapered optical fiber with a subdiffraction-limited aperture. The approach promises to boost the illumination on the sample by orders of magnitude, increasing the scanning speed and signal-to-noise ratio of the systems. The potential of the very small aperture laser to act as an active probe for near-field scanning optical microscopy was tested by scanning a sample grating with 600-nm-wide grooves and a period of 3.6 μm. The shape...Read full article

Related content from Photonics Media



    Articles


    Products


    Photonics Handbook Articles


    White Papers


    Webinars


    Photonics Dictionary Terms


    Media


    Photonics Buyers' Guide Categories


    Companies
    Published: June 2006
    Glossary
    near-field scanning optical microscope
    A scanning probe microscope that analyzes the surface of a specimen by recording the intensity of light as it is focused through a pipette and raster scanned across the specimen at a distance less than a wavelength. The resolution and high contrast output of the near-field scanning optical microscope allows for the study of various properties of the specimen under observation including refractive index, local stresses, as well as chemical structures.
    Basic ScienceFeaturesindustriallaser diodesMicroscopynear-field scanning optical microscope

    We use cookies to improve user experience and analyze our website traffic as stated in our Privacy Policy. By using this website, you agree to the use of cookies unless you have disabled them.