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OSA Publishing

Engineering & Lab Notes

212 results
  • Folk Wisdom in Optical Design

    Smart, Anthony E.
    • 1994
    • Applied Optics 33(34) 8130-8132  View: HTML | PDF

    Building optical systems that actually meet specifications requires more than a knowledge of optics and the use of contemporary design codes. Excellence also comes with a kind of “street” knowledge, l...

  • Zernike Annular Polynomials and Optical Aberrations of Systems with Annular Pupils

    Mahajan, By Virendra N.
    • 1994
    • Applied Optics 33(34) 8125-8127  View: HTML | PDF

    Zernike annular polynomials that represent orthogonal and balanced aberrations suitable for systems with annular pupils are described. Their numbering scheme is the same as for Zernike circle polynomi...

  • Room Illumination without Degrading Narrow-Band Detection

    Jutamulia, Suganda
    • 1994
    • Applied Optics 33(34) 8120-8120  View: HTML | PDF

    A pair of complementary spectral filters can be used to block detector background illumination and provide bright illumination for an operator in a room....

  • Three-channel Homodyne Interferometer

    Greco, V.; Iemmi, C.; Ledesma, S.; Molesini, G.; Quercioli, F.
    • 1994
    • Applied Optics 33(34) 8115-8116  View: HTML | PDF

    A three-channel homodyne interferometer based on a structured delay plate is described. Detection and data acquisition are performed with standard optoelectronics in a PC environment. The device, whic...

  • Integrated Optics Pockels Cell—Choice of Crystal Cut and Waveguide Orientation

    Rahmatian, Farnoosh; Jaeger, Nicolas A. F.
    • 1994
    • Applied Optics 33(34) 8127-8129  View: HTML | PDF

    Several benefits are realized when one chooses a z-propagating waveguide in a y-cut substrate of lithium niobate for use in an integrated optics Pockels cell: (1) waveguide can be biased by controllin...

  • Image Rotation

    Ginsberg, Robert H.
    • 1994
    • Applied Optics 33(34) 8105_1-8108  View: HTML | PDF

    A simple equation is presented that describes the rotation of art image by a mirror or prism, and that can be used to calculate the amount of image rotation in a complex optical system. The equation a...

  • Polarimetric Detection of Land Sediment Runoff into the Ocean Using Space Shuttle Imagery

    Egan, W. G.; Sidran, M.
    • 1994
    • Applied Optics 33(34) 8117-8119  View: HTML | PDF

    A new technique employing optical polarization is used to examine polarized radiation scattered by the sea in a region west of the Island of Hawaii. The technique is a very sensitive indicator of land...

  • Fiber-coupled Laser Diode Mount for Interferometry

    de Groot, Peter
    • 1993
    • Applied Optics 32(34) 7122-7123  View: HTML | PDF

    One of the most difficult aspects of working with laser diodes in the laboratory is their sensitivity to optical feedback. This problem is particularly troublesome when trying to couple the laser ligh...

  • Infrared Collimator System

    Shafer, David
    • 1993
    • Applied Optics 32(34) 7117-7118  View: HTML | PDF

    A system of three spherical mirrors can be used as a replacement for an off-axis parabolic mirror collimator. The system is more compact and has ~2.5× larger diffraction-limited field of view....

  • Estimating Secondary Color

    Walker, Bruce H.
    • 1993
    • Applied Optics 32(34) 7124-7124  View: HTML | PDF

    Image quality of a refracting lens system often will be limited by residual secondary color. Information in this paper permits rapid determination of blur spot size, and resulting image quality degrad...

  • Rotational Shearing Interferometer

    Willard, Berton C.
    • 1993
    • Applied Optics 32(34) 7118-7119  View: HTML | PDF

    An interferometer with 180° rotational shear does not show rotationally symmetrical aberrations. The instrument, however, is suitable for aligning zooming laser optical systems, monitoring wavefront i...

  • Accurate Measurement of Refractive Indices

    Hsu, Hsiung
    • 1993
    • Applied Optics 32(34) 7120-7121  View: HTML | PDF

    A simple wedge measurement technique of optical refractive index is described. The procedure is more accurate and convenient than the usual minimum deviation method and is not limited to visible light...

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