Buyer’s Guide to Neutral Density Filters
Neutral Density Filters, or ND Filters, are optical filters designed to reduce the intensity of all light passing through the...
A Guide to Hydrophobic and Oleophobic Coatings
Ever notice that when a few droplets of water land on your smartphone’s screen, they bead up as if floating...
A Closer Look at EST Monitoring
Elevated Skin Temperature (EST) monitoring, is an extension of the field of thermography applied to measuring skin temperature. The premise...
Understanding Optical Aberrations
What is an Optical Aberration? Aberration: an unwelcome departure from the normal, usual, or expected. Most images are imperfect. Image...
Q&A with Michelle Henderson, Coatings Expert
The Dynasil family of companies delivers an extensive range of photonics-based products and capabilities. But Dynasil itself is a product...
UV Blocking Filters
Ultraviolet (UV) radiation is comprised of the part of the electromagnetic spectrum with wavelengths in the range of 100-400 nm....
Buyer’s Guide to Wire Grid Polarizers
Wire grid polarizers, as the name suggests, are polarizing elements that use arrays of fine metal wires to selectively transmit...
A Primer on Anti-Reflective Coatings
Introduction to Anti-Reflective Coatings An AR coating is an optical coating applied to a surface to reduce the amount of...
Dielectric or Bragg Mirror and Its Applications
Mirrors and the Reflection of Light Mirrors play an important role in many aspects of our life. From simple things...
Coating Chalcogenides with Confidence
What are Chalcogenides? Chalcogenides are glasses containing one or more chalcogens (sulfur, selenium and tellurium). Chalcogenide glasses are becoming a preferred...