Educational Materials

Find educational information to optimize and innovate your optofluidic pathway. Use the left hand navigation to filter by product category and by media type.

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  • How to Clean Semrock Optical Filters

    By IDEX Health & Science

    Have you ever accidentally touched your filter with gloves or noticed a speck of dust? Learn how to effectively remove debris from your Semrock optical filters from IDEX Health & Science by watching our new filter cleaning demo. Learn More

    how to clean Semrock optical filters
  • Vacuum-Release (VR) Gel-Pak

    By IDEX Health & Science
    Semrock utilizes Vacuum-ReleaseTM (VR) Gel-Pak packaging for filters whose part size and narrow substrate thickness make it difficult to remove the filters from standard Gel-Paks.

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  • New Product Development Strategies

    By IDEX Health & Science

    New Product Development plays a pivotal role as the major driving force of organic business growth, but to add new products and services to their range of offerings, companies must make improvements to their infrastructure. In this white paper, learn about the importance of new product innovation, different process methods, and best practices for optimizing your company’s strengths to help you get to market faster. Learn More

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  • Advanced Spectral Measurement Systems and Semrock Optical Filters

    By IDEX Health & Science

    Learn more about the features of the proprietary tools developed by IDEX Health & Science, including the established Peregrine and the new KolaDeep™ Spectral Measurement Systems in this white paper. Learn More

    KolaDeep White Paper thumbnail
  • 2023 Semrock Optical Filters Catalog

    By IDEX Health & Science

    Our engineers and product management teams have collaborated to provide you with the Semrock Master Catalog from IDEX Health & Science. With proven results, we give you access to high-level engineering that will help make every photon count in your system. Learn More

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  • Selecting Filters for Fluorescence Multiplexing

    By IDEX Health & Science

    The steady advances in optical thin film deposition technology over recent decades have enabled production of high performance multiband optical filters that address the increasing demand for multicolor fluorescence instrumentation. Though there is now a wide range of available catalog filters designed for a large variety of fluorophores, selecting suitable filters is often a complex process. Here we present considerations relevant to the design of such a multiplexing system. Learn More

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  • Maximizing the Performance of Advanced Microscopes by Controlling Wavefront Error Using Optical Filters

    By IDEX Health & Science

    Any imaging instrument has a limited tolerance for wavefront error – and every optical element in the light path (including dichroic beamsplitters) contributes to wavefront error, thereby limiting overall imaging system performance. When aiming to achieve diffraction-limited imaging performance or better, it is important to consider wavefront errors from all optical elements in order to calculate the total instrument wavefront error, and to compare it to the maximum allowable value. Learn more in this white paper. Learn More

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  • Filter Spectra at Non-normal Angles of Incidence

    By IDEX Health & Science
    While most applications call for optical filters to be used at normal incidence, it is important to understand how the spectral properties of different types of filters change when using these filters a non-normal angles of incidence (AOI). There are two main effects exhibited by all filter spectrum as the angle is increased from normal which are discussed in this article.

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  • Introduction to Fluorescence Filters

    By IDEX Health & Science
    Optical fluorescence occurs when a molecule absorbs light at wavelengths within its absorption band, and then nearly instantaneously emits light at longer wavelengths within its emission band. For analytical purposes, strongly fluorescing molecules known as fluorophores are attached to biological molecules and other targets of interest to enable identification, quantification, and even real-time observation of biological and chemical activity. Fluorescence is widely used in biotechnology and analytical applications due to its extraordinary sensitivity, high specificity, and simplicity.

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  • Laser Damage Threshold

    By IDEX Health & Science
    Laser damage to optical filters is strongly dependent on many factors, and thus it is difficult to guarantee the performance of a filter in all possible circumstances. Nevertheless, it is useful to identify a Laser Damage Threshold (LDT) of pulse fluence or intensity below which no damage is likely to occur. Laser damage may be broadly classified into two types: absorption-driven and dielectric-breakdown damage. Which type dominates depends on the material properties (absorption coefficient, specific heat, melting temperature, as well as defects that cause scattering and concentrated electric field effects), geometric properties of the sample (thickness, homogeneity, surface morphology, etc.), and of course the properties of the laser beam itself.

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