Narrow Band Imaging (NBI) Endoscopy: How It Works & Advantages
Learn about NBI endoscopy: principles, 415nm/540nm filters, advantages over white light. OPTOStokes offers quality filters for precise GI diagnostics.
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Fluorescence Filter Cube Holders (FL CUBE): Compatibility & Specs
Discover FL CUBE filter holders for Olympus, Nikon, Leica, Zeiss. High-efficiency fluorescence cubes with sharp cut-ons, 93-97% transmittance. Stock & custo...
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Soft vs. Hard Coating Filters: Differences & Synergy
Learn the key differences between soft and hard coating filters, their synergies in optical systems, and applications. Expert insights for precise filter select...
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Optical Coatings: Principles, Techniques & Advanced Applications
Learn the science behind optical coatings—principles of interference, deposition techniques (e.g., sol-gel, e-beam evaporation), and applications in lasers, dis...
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Refractive Index, k, T, R: Key Parameters of Optical Thin Films
Learn about optical thin film parameters: refractive index (n), extinction coefficient (k), transmittance (T), reflectance (R). Explore their relationships and ...
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Thin-Film Optical Filters: Types, Specs & Custom Solutions
Learn about thin-film optical filters: types (bandpass, dichroic), specs, and custom solutions. OPTOStokes offers stock & custom filters for microscopy, spe...
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Raman Filters: Truth About Cost vs. Performance
Discover truth about Raman filter tradeoffs. OPTOStokes delivers stock/custom notch & dichroic filters with OD5-OD7 blocking. Solve cost vs performance dile...
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785nm Raman Laser: Why It’s the Top Choice for Spectroscopy
Discover why 785nm laser is the optimal choice for Raman spectroscopy. Learn how it suppresses fluorescence, offers balanced penetration, & works with key o...
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Cy5 Filter Selection Guide for Fluorescence Imaging
OPTOStokes’ guide to selecting Cy5 filters: 630/20nm excitation, 675/20nm emission, DM647nm. High SNR, compatible with imaging systems. In-stock & custom op...
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