Atomic Force Microscopes (AFMs) offer substantially better horizontal and vertical resolution than optical and stylus profilers. For this reason, AFMs are ideal for the analysis of materials used in the photonics industry.

Some of the advantages from using an AFM for analysis of photonics materials include the following:
- Three dimensional structures are measured: depth and angles are measurable.
- Image is independent of optical properties.
- No sample preparation required – no coatings, no cross sections.
- Extreme contrast on flat samples.
Atomic Force Microscopy is non-destructive.
- AFM applications in the photonics industry include:
- Analysis of Polished Fused Silica Substrates
- Ruled Gratings
- Holographic Gratings
Analysis of Polished Fused Silica Substrates
Once polished, fused silica substrates can have surface roughness values of 0.1 nm. With an AFM it is possible to visualize the surface of polished silica substrates, to measure the surface texture, and to measure the dimensions of structures created by the polishing process.
Ruled Gratings
Atomic Force Microscopes scan and directly measure the topography of ruled grating. From AFM images the ruling angle, pitch, and surface texture of features are measurable. The image below is of a ruled grating measured on a TT-AFM.
Holographic Gratings
Specifications of holographic grating including heights must be maintained to very tight tolerances. Properly operated, an AFM can measure step heights as low as a few angstroms with very high precision and accuracy.
Looking for a reliable Atomic Force Microscope company?
Try AFMWorkshop, We have extensive experience manufacturing atomic force microscopes as well as training users on the operation of AFMs. With hundreds of customers worldwide, AFMWorkshop products have stood the test of time and have been used in a wide variety of applications.
To learn more about AFM Workshop Products, feel free to visit at www.afmworkshop.com.







