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WHAT IS CL
  • Introduction
    • What is CL?
    • Why use CL?
    • Modes of Operation
      • Unfiltered
      • Wavelength-Resolved
      • Wavelength-Filtered
      • Angular-Resolved (ARCL)
      • Polarization
      • Time-Resolved
      • Wavelength- and Angle-Resolved (WARCL)
      • Infrared Wavelengths
      • Ultraviolet Wavelengths
  • Applications
    • Rocks, Minerals, & Gems
      • Meteorites
      • Sedimentary Rocks
      • Carbonate Rocks
      • Economically Important
      • Quartz
      • Zircons
    • Semiconductors
      • Process Development
      • Nanostructure Characterization
      • Device Characterization
        • LEDs
        • MicroLED Displays
        • Laser Diodes
        • Photovoltaics
    • Nanophotonics
      • Plasmonics
      • Metamaterials
      • Photonic Structures
    • Ceramics, Oxides, & Nitrides
      • Phosphors
      • Oxides & Nitrides
      • Dielectric Materials
      • Engineering Ceramics
    • Radiations
    • Organic Molecules
      • Biological Specimens
      • Pharmaceuticals
      • Polymers
  • How To
    • Getting Ready
      • Sample Preparation
      • Microscope Setup
      • Alignment
        • For Monarc
        • For MonoCL and ChromaCL
        • For Vulcan
      • Technique Selection
    • Spatial Mapping
      • Alignment for Mapping
      • Collecting Maps
      • Optimizing Maps
    • Spectroscopy
      • Alignment for Spectroscopy
      • Collecting Spectra
      • Optimizing Spectra
    • Emission Patterns
      • Alignment for Emission Patterns
      • Collecting Emission Patterns
      • Optimizing Emission Patterns
    • Spectrum Imaging
      • Wavelength-Filtered SI
      • Wavelength/Angle-Resolved SI
        • SEM/STEM SI Setup
        • Survey Image
        • Select and Survey ROI
        • Flow Control
        • Visual Feedback
        • Adjustments
      • Advanced SI
    • Analyze
      • Origins of Contrast
      • Luminescence Spectra
      • Least-Square Fitting
        • Single Spectrum
        • Spectrum Image
        • NLLS Models
        • NLLS Setup Palette
      • Tips & Tricks
  • Resources
  • Events
  • Glossary
  • FAQ
  • Contact
  • What is CL?
  • Why use CL?
  • Modes of Operation
    • Unfiltered
    • Wavelength-Resolved
    • Wavelength-Filtered
    • Angular-Resolved (ARCL)
    • Polarization
    • Time-Resolved
    • Wavelength- and Angle-Resolved (WARCL)
    • Infrared Wavelengths
    • Ultraviolet Wavelengths
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Introduction

What is CL?

What is CL?

Cathodoluminescence is the emission of photons, as light when a material is stimulated explicitly by high-energy electrons.

Why use CL?

Cathodoluminescence is a unique tool to characterize the composition and optical and electronic properties of materials, while simultaneously correlating them with morphology, microstructure, composition, and chemistry at the micro- and nano-scale.

Modes of operation

The emitted photons may be analyzed by their wavelength (energy), direction, polarization, and lifetime. Advanced detectors have modes of operation to analyze the distribution of one or more of these properties at high spatial resolution.

  • Infrared Wavelengths
  • Unfiltered
  • Wavelength-Resolved
  • Wavelength-Filtered
  • Angularly Resolved (ARCL)
  • Polarization
  • Time-Resolved
  • Wavelength- and Angle-Resolved (WARCL)
  • Ultraviolet Wavelengths

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