Resource Library

Accurate and efficient optical filtering is fundamental to achieving optimal results in a variety of scientific and industrial applications. To support your understanding and selection of optical filters, our Semrock team at IDEX Health & Science has developed the Optical Filters 101 Guide. This comprehensive resource provides an in-depth overview of optical filter principles, specifications, and applications. It is designed to empower researchers, engineers, and professionals with the knowledge necessary to make informed decisions regarding optical filter selection. Learn More

The emission filter is a critical part of any fluorescence system (learn more about fluorescence filters here). Emission filters, and to a lesser extent excitation filters, provide most of the signal-to-noise ratio (SNR) enhancement in fluorescence systems. This note describes emission filters and their use in both single-point (as in photometry and point-scanning) and imaging (microscopic and macroscopic) applications. Learn More

IDEX Health & Science | Semrock has been delivering the ultimate in fluorescence filters for over 20 years. Our ultra-steep transition edges, deep blocking, and high transmissions have set the standard for excellence and have helped drive the creation of new, higher performance optical systems. In this Tech Note, you will learn to use our unique products to get the most out of your fluorescence and Raman excitation designs, no matter what the light source. Learn More

Download technical information, specifications, and product inserts for the Nanopede filter family Flight 1 and 2 sets. Learn More

When you are developing optical instrumentation, you continually face new challenges: new customer requirements and product expectations, evolving technologies, changing markets, and the need for a rapid and decisive response. To help you conquer those challenges, Semrock provides superior products and expert, personalized support. Learn more in our brochure. Learn More

In the world of high-quality optical filters, where precision is paramount, the ability to tailor parts to your exact requirements is essential. At IDEX Health & Science, we offer a range of Semrock™ optical filters to meet your specific needs. This guide will introduce you to the available customization options. Learn More

Unsure if catalog, custom, or hybrid optical filters are right for your project? Explore our step-by-step guide to find the best Semrock optical filter for your application. Learn More

Optical thin-film coatings can be deposited by a variety of methods. Traditionally the most popular methods for depositing multilayer coatings – required for higher-performance mirrors and filters – include thermal and electron-beam (e-beam) evaporation and ion-assisted e-beam evaporation (IAD). Learn more in this tech note. Learn More

Optical Density – or OD, as it is commonly called – is a convenient tool to describe the transmission of light through a highly blocking optical filter (when the transmission is extremely small). Learn More

Notch filters are ideal for applications that require nearly complete rejection of a laser line while passing as much non-laser light as possible. The main drawback of standard thin-film notch filters has been a limited passband range due to the fundamental and higher-harmonic spectral stop bands. Learn More