Experiment with different modes and learn more about nanophotonic structures
Cathodoluminescence solutions that reveal fundamental properties of matter
Fast EM solutions for reliable and high throughput electron microscopy
Integrated correlative microscopy solutions that combine the power of fluorescence and electron microscopy
Cathodoluminescence solutions that reveal fundamental properties of matter
Fast EM solutions for reliable and high throughput electron microscopy
Integrated correlative microscopy solutions that combine the power of fluorescence and electron microscopy
Mapping the radiative local density of optical states
Characterizing guided and resonant optical modes
Measuring angular profiles to study directionality
Measuring the polarization of emission for multipolar analysis
Cathodoluminescence (CL) imaging is a powerful method for studying nanostructures and optical phenomena at nanoscale. The electron beam acts as a very pure local excitation source. The hyperspectral light-emission maps produced with CL allow mapping of the radiative local density of optical states, a quantity that determines how well light couples to matter and vice versa. Furthermore, directionality, dispersion, and polarization of emission can be measured, using various CL imaging modes.
CL is commonly used to study metallic as well as dielectric and semiconductor nanostructures, including nanoparticles, nanowires, metamolecules, metasurfaces, and photonic crystals. These structures find applications in (bio)sensing, fluorescence enhancement, non-linear optics, LED’s, solar cells, integrated photonics, lasers and more.
Experiment with different modes and learn more about nanophotonic structures
Analyze directionality, dispersion, and polarization of emission
Study your samples with modular and sensitive cathodoluminescence detectors
Get the most of your CL system with the help of our application experts
Cathodoluminescence can be used to directly visualize the internal modal structure of semiconductor nanoparticles. Combining particles in complex geometries enables more tunability of the optical response and is key for their integration with a macroscopic device, such as an LED or solar cell. Cathodoluminescence allows visualizing electromagnetic coupling between the particles, which plays a critical role in determining the optical properties in these systems and leads to mode hybridization.
Dr. Ruggero Verre
-Chalmers University of Technology