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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
  • 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

    multiplexing white paper thumbnail
  • 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

    control wavefront error using optical filters white paper thumbnail
  • How to Calculate Luminosity Dominant Wavelength and Excitation Purity

    By IDEX Health & Science

    In this article we briefly describe the method to calculate the three main parameters that fully specify color in this system: luminosity, dominant wavelength, and excitation purity. Learn More

    how to calculate luminosity, dominant wavelength, and excitation purity white paper cover
  • Physics of Pixel Shift

    By IDEX Health & Science

    In multicolored fluorescence microscopy, pixel shift can cause imaging errors, which can lead to erroneous interpretation of biological data. This article highlights some key considerations in the design of optical filter sets with “zero pixel shift” (less than one pixel error) performance. Learn More

    Pixel Shift
  • Ion-Beam-Sputtered (IBS) Thin-film Interference Filters for Nonlinear Optical Imaging

    By IDEX Health & Science

    In this paper we discuss various important characteristics of hard-coated thin-film interference filters, such as high light throughput, steep edges, and high out-of-band blocking, all of which require careful consideration when designing and manufacturing optical filters for NLO imaging applications. Learn More

  • Optical Filters for Laser-based Fluorescence Microscopes

    By IDEX Health & Science

    Optical filters play a vital role in obtaining maximum performance from complex, expensive, laser-based microscopes and it only makes sense to invest in optical filters that match the performance of the imaging system. Learn More

  • Tunable Bandpass Filters

    By IDEX Health & Science

    Many applications benefit from tunable optical filters with the spectral and two-dimensional imaging performance characteristics of thin-film filters and the center wavelength tuning flexibility of a diffraction grating. Learn More

  • Thin-Film Filters for Raman Spectroscopy

    By IDEX Health & Science

    Recent advances in thin-film filter technology have enabled dramatic improvements in the performance of filters for laser-based analytical instrumentation. Learn More

  • Thin-Film Filters Come of Age

    By IDEX Health & Science

    Multilayer optical thin-film filters play a critical role in applications ranging from biomedical and analytical instrumentation to advanced laser systems. Learn why thin-film coating technology has been a technological breakthrough in biotechnology and other fields. Learn More