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Optical Engineering

Large Diameter Germanium Single Crystals For Infrared Optics
Author(s): G. Gaini; M. Azoulay; C. Shiloh; Y. Noter; A. Saya; H Galron; M. Roth
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Paper Abstract

Large single crystals, up to 200 mm in diameter, of high optical quality germanium have been grown by the Czochralski technique. Post-growth thermal treatment improves the optical homogeneity and reduces optical losses, as shown by measurements of refractive index gradients and modulation transfer function (MTF). A new approach for the piecewise combination of interferograms, as well as a polychromatic treatment of MTF, is presented.

Paper Details

Date Published: 1 September 1989
PDF: 6 pages
Opt. Eng. 28(9) 281003 doi: 10.1117/12.7977078
Published in: Optical Engineering Volume 28, Issue 9
Show Author Affiliations
G. Gaini, Soreq Nuclear Research Center (Israel)
M. Azoulay, Sorea Nuclear Research Center (Israel)
C. Shiloh, Soreq Nuclear Research Center (Israel)
Y. Noter, Soreq Nuclear Research Center (Israel)
A. Saya, Soreq Nuclear Research Center (Israel)
H Galron, Soreq Nuclear Research Center (lsrael)
M. Roth, Hebrew University of Jerusalem (Israel)


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