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  • Thermal Imaging in Space
    Article - 4 May 2016
    Originally developed for military purposes during the late 1940s, thermal imaging allowed soldiers in combat to see and target opposing forces through the darkest hours of the night or across a...
  • What is Transparency?
    Article - 19 Sep 2014
    In optics, transparency, also referred to as pellucidity or diaphaneity, is the physical property of allowing light to pass via the material without being scattered.
  • Confocal Microscopy - Applications and Benefits
    Article - 6 May 2014
    Confocal microscopy is a versatile imaging method through which viewing cells and tissues is made possible. It is a major improvement from conventional light microscopy as it also helps create images...
  • Sum Frequency Generation - Non-Linear Optics for Advanced Spectroscopy
    Article - 8 Oct 2013
    Sum frequency generation (SFG) may be defined as a second order non-linear optical process in which a tunable infrared beam is combined with a visible beam, such that that the frequency of the output...
  • Carbon Arc Lamp - Properties and Applications
    Article - 3 May 2014
    Arc lamps are a category of lamps that produce light by an electric arc (also known as a voltaic arc). The lamp consists of two electrodes that are separated by a gas.
  • What is an Optical Bandpass Filter?
    Article - 24 Jul 2013
    Optical bandpass filters are filters that allow only a certain bandwidth of light and block the others above and below the specified bandwidth.
  • What is an Absorptive Filter?
    Article - 25 Apr 2014
    Absorptive filters are essentially glass filters that are dyed or pigmented gelatin resins. Like any other filter, absorptive filters allow light of certain wavelengths to pass through. These are...
  • Using the Instrument Transfer Function (ITF) to Interpret Interferometric Height Measurements
    Article - 4 Apr 2013
    Exploring the ITF's role in enhancing interferometric height measurements by characterizing system responses to frequency variations in metrology tools.
  • What is Laser-Induced Breakdown Spectroscopy (LIBS)?
    Article - 9 Aug 2012
    This article gives an introduction to Laser Induced Breakdown Spectroscopy, a technique which is a key tool in the analytical arsenal of NASA's Curiosity rover on Mars.
  • Introduction to TIRF Microscopy by Andor Technology
    Article - 3 Sep 2010
    TIRFM makes use of an optical effect that can observe fluorescent events occurring at the interface between two optical media of different refractive indices.

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