Technical Articles

  1. Finished Infrared Optics White Paper
    3/13/2019

    PG&O finished infrared (IR) optics are designed for a wide range of applications, including biomedical, industrial, military/defense, homeland security, surveillance systems, automotive, fire control, lasers, night vision, and more. These new optics operate from 0.75 µm, the near-infrared (NIR), out to 15 µm, the longwave-infrared (LWIR) spectrum.

  2. What To Consider When Selecting A Neutral Density Filter
    2/28/2019

    Neutral density filters are important components in imaging and light measurement applications, so it's useful to know how to select the right filters to meet your needs.

  3. Palmheld Spectroscopy Becomes A Powerful Tool For The Food Industry
    2/20/2019

    All aspects of the food industry may find a need to evaluate products in a field or factory. Palmheld spectroscopy provides powerful analysis without the need for expert users.

  4. Innovation In AR Lens Coatings: High Quality Coatings For High-Power Lasers
    2/14/2019

    Lens coatings are an essential part of high-power CO2 laser systems. Coatings must protect the lens and allow for the highest levels of optical performance, with low levels of absorption and a long-life expectancy. Transparency is another coveted characteristic for use with visible HeNe red laser pointers. The cost/benefit ratio of a coating must also be considered, as well as the environmental impact of the substrates used. For optical manufacturers, the challenge is in developing a lens coating that excels in all these areas. This white paper discusses the development of anti-reflection (AR) lens coatings for use in high-power lasers.

  5. Analyzing Small, High Power Beams At Focus In Manufacturing Applications
    2/14/2019

    Lasers are increasingly deployed in manufacturing applications, being pushed to higher and higher output powers and smaller and smaller beam sizes to work faster and with higher precision. Determining the beam profile at the beam focus of these lasers is critical to verify and improve manufacturing product quality. However, there are enormous challenges that must be overcome to capture the beam profiling data. This white paper discusses best practices for analyzing small, high power beams at focus for manufacturing applications.

  6. Optical Micromirrors Reveal The Secrets Of Cell Membranes
    2/13/2019

    Progress in understanding the lipid bilayer – an ingenious two-molecule thick oily barrier that protects all living cells, including our own – has been dramatic over the past 100 years. But there are still puzzles to be solved such as how these membrane proteins, which are oily themselves, navigate the oily lipid bilayer to go about their work. The first step for scientists is to figure out the thermodynamic rules that govern protein assembly in membranes.

  7. Poking And Prodding The Molecules Of Life
    2/13/2019

    Applying physics to the properties and underlying structures of the molecules of life offers an insight into the mechanisms that make living beings tick. But even seemingly simple actions like muscle contraction involve a wide array of biological interactions, which has shrouded the dynamics and function of individual molecules behind a curtain of complexity. The scientific community has developed a powerful toolbox of methods to probe these interactions over the past two decades, uncovering previously hidden information about the structure, dynamics and function of individual biomolecules.

  8. Specifying Surface Figure And Wavefront Distortion For Multi-layer Optical Filters
    1/15/2019

    Optical filters are used in many applications and the surface figure and wavefront distortion requirements of filters are dependent on where and how they are used. If filters are only used in sensing applications with very tolerant detector geometries, there may be no need, in practice, to put any constraints on the surface figure or wavefront distortion. This white paper helps the reader understand where, when, how, and how much to specify wavefront distortion to ensure that functional requirements of filters are guaranteed while unnecessary and costly constraints are avoided.

  9. Making Waves: Nanosecond Pulsed Drivers For Flash LiDAR
    1/7/2019

     The limiting factor on a diode laser’s pulse features is not the laser itself — it is the electrical driver that supplies the electrons to the laser diode. This paper discusses challenges involved in optimizing nanosecond electrical driver performance in a flash LiDAR system.

  10. The HOT Infrared Imaging Market is Heating Up
    12/20/2018

    New infrared camera cores with high operating temperatures allow the construction of imaging systems that are smaller, lighter, and less power-hungry. That’s opening up new uses, from airborne to hand-carried applications.