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  • Material Properties Controlled Using Terahertz Radiation
    Article - 19 Jan 2008
    A collaboration led by researchers with the U.S. Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab) has used molecular vibrations, triggered by ultrafast pulses of terahertz...
  • Photonic Crystal Fibers - Paving the Way for Better Optical Fibers
    Article - 23 Dec 2007
    Photonic crystals are materials which consist of a periodic structure in the nanometer scale, which is in the order of wavelengths of light.
  • Geometrical Distortion - A Form of Optical Aberration
    Article - 13 Dec 2007
    Geometrical Distortion is form of optical aberration which is normally observed in stereoscopic microscopy.
  • Comatic Aberration – What is Comatic Aberration?
    Article - 10 Dec 2007
    Comatic aberration is an optical aberration which mainly occurs with off-axis light fluxes. Comatic aberration is most serious when a microscope is out of alignment.
  • Specialty Optical Fibers Handbook
    Book
    This book is a comprehensive contributed volume that aims to describe and explain the design, fabrication, operating characteristics, and specific applications of the most popular and useful types of...
  • Optical Aberration - Astigmatism Aberration
    Article - 7 Dec 2007
    Astigmatism aberration is a result of an off-axis image of a point of specimen which appears as an ellipse of a line rather than a point.
  • Passive Optical Networks
    Book
    Passive optical network (PON) technologies have become an important broadband access technology as a result of the growing demand for bandwidth-hungry video-on-demand applications. Written by the...
  • Field Curvature Aberration – What is Field Curvature Aberration?
    Article - 7 Dec 2007
    In optical microscopy, field curvature is an optical aberration that most of the experienced microscopists are familiar with. Field curvature occurs when lenses that have curved surfaces are used.
  • Optical Telescope - How Does it Work?
    Article - 1 Dec 2007
    An optical telescope is an instrument that can make distant objects appears much closer.
  • What is a Focal Length?
    Article - 18 Nov 2007
    The focal length of an optical system is a measure of how strongly it focuses or diffuses light. A system has greater optical power if it has a shorter focal length than a system that possesses a...

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