Stories & Features

Spectral flow cytometry requires filters covering the UV, visible, and NIR in discrete steps, which may lead to a desire to balance instrument cost and optical filter performance. IDEX Health & Science understands these needs, and we are proud to announce our latest Semrock bandpass optical filters: Nanopede™. These essential performance and cost-effective filters cover the near UV and visible spectrum in even and odd 20 nm Full-Width, Half-Max (FWHM) steps.
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Although it is possible to combine filters from different families, doing so may require trade-offs because each family is optimized with its own design assumptions and priorities. Depending on the application, mixed-family configurations can deliver acceptable results, or may benefit from additional evaluation to ensure optimal performance. Read this tech note to learn how.
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Inspiring the next generation of scientists, one photon at a time. We’re proud to highlight one of our Application Scientists, Elizabeth Bernhardt, PhD, who volunteered at the Washtenaw Elementary Science Olympiad (WESO) 2026 using Semrock optical filters from IDEX Health & Science for a hands-on learning activity,
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There is a natural tendency to over-specify. If a 1% tolerance is good, a 0.1% tolerance must be better, right? Not necessarily. For optical filters, "better" may mean increased cost without necessarily providing any benefit to your application requirements.
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However, innovation doesn’t keep office hours. Whether you’re troubleshooting a system at midnight or optimizing a multi-channel experiment across different time zones, you need data-driven confidence to move your project forward. To bridge the gap between theoretical concepts and functional prototypes, we’ve introduced two major updates to SearchLight: a smarter Product Search and the Automatic System Calculator tool. Together, they act as a 24/7 resource, allowing you to model, search, and optimize optical systems the moment inspiration strikes.
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The Ecosystem Trap: The Danger of Vendor Mixing. In a high-performance optical system, filters don’t work in isolation—they work as a part of a team. If your excitation and emission filters aren’t compatible, your signal will be drowned out by noise. One of the most common mistakes we see is vendor mixing: buying a Semrock optical filter from IDEX Health & Science for its reputation and then sourcing the partner filter from a lower-cost vendor to save on the bottom line. Individually, both might pass inspection, but you’re risking optimal performance in your system.
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A common misconception in optical system design is that a perfect drawing guarantees a perfect result. If you provide precise transmission and OD blocking, any high-end vendor should be able to deliver a part that just works. However, at IDEX Health & Science, we’ve seen that an optical filter can meet every single spec on a piece of paper and still cause technical issues once installed. This is the hidden cost of build-to-print sourcing: when you order a part that is technically correct but not optimal because the system logic was flawed. Read Part 1 of our Semrock Advantage Series.
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Our BrightLine filter sets have long been an industry ”work horse,” delivering dependable, exceptional performance for a wide range of ever evolving applications and customer needs. We're excited to announce a significant evolution in our BrightLine product offerings, designed to provide unparalleled value and performance: the BrightLine 2.0 and BrightLine Basic Optical Filter Sets.
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At IDEX Health & Science, we prioritize the speed of your innovation. For optical research and instrument development, timing isn’t just a convenience—it’s the difference between a breakthrough and a bottleneck. For critical prototyping, RD&E, and debugging, explore fast delivery options for our Semrock optical filters.
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Design Smarter & Spend Less. Learn how to engineer your system for performance and value by exploring the three costliest optical filter spec mistakes.
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