Optical Filters White Papers and Case Studies

  1. Advanced Spectral Measurement Systems And Semrock Optical Filters 12/27/2023

    Examine how advanced spectral measurement systems (SMS) platforms ensure precise and reliable spectral measurements, especially in scenarios involving deep blocking and steep spectral edges.

  2. Optical Filter Wavefront Distortion: Out-Of-Band To In-Band Predictions 8/28/2023

    This paper explores predicting accurate in-band wavefront error of an optical filter using out-of-band measurements due to wavelength and angle variations.

  3. Surface Flatness And Wavefront Error 8/28/2023

    The concept of surface flatness and wavefront error in the context of optical components is explained, including how these properties are measured, defined, and how they impact optical performance.

  4. Optical Filter Specifications: Cone Half Angle (CHA) 8/28/2023

    Cone half angle (CHA) measures the degree of convergence or divergence in an incident beam. Learn more about CHA and how it impacts optical filter spectra.

  5. Color Temperature Adjustment Filters For Technical Or Aesthetic Illumination 8/23/2023

    Color Temperature Adjustment Filters modify light spectra for diverse applications like architecture, cinema, medical fields, and security, allowing precise control over color appearance.

  6. Optical Filter Spectral Features 4/5/2023

    Optical filters selectively transmit light in a particular range of wavelengths. The spectral features of optical filters are important for selecting the right filter for a particular application.

  7. New Metrology Techniques For Advanced Thin Film Optical Filters 6/18/2020

    Measuring the spectral response of advanced thin film optical filters is challenging, but can be overcome with the right approach.
     

  8. Flat Top, Ultra-Narrow Filters Using Plasma Deposited Hard Oxide Coatings 6/18/2020

    Alluxa’s new class of ultra-narrow filters are designed for applications such as laser cleanup, lidar, telecommunications, and instrumentation. They also offer the narrowest and “squarest” filter profiles in the visible and NIR, as well as transmission levels that approach 100%.

  9. Specifying Plasma Deposited Hard-Coated Optical Thin Film Filters 6/18/2020

    Learn about different filter types, their key attributes, and how to optimize cost. The filters discussed include high cavity count band pass, replacement, tilted beamsplitter filters, and more.

  10. Advanced Plasma Deposition Improves Ultra Narrowband Optical Filters 6/18/2020

    Narrowband filters are a critical technology for lidar, laser cleanup, chemical and gas sensing, and more. Because creating multicavity filters is a challenge for deposition process control systems, Alluxa uses a computer-controlled variation on the turning point method of thickness control for each individual layer.