THE DISPERSION OF THE STRESS OPTICAL COEFFICIENT OF VITREOUS SILICA

E S JOG

Abstract


Accurate determinations of the stress optical coefficient C of vitreous silica and its variation with wavelength have been made over the range from A 230 mp. to A 500 mil. Filon's spectroscopic method has been used with suitable modifications. Using the data obtained by the author and those of Filon (which are confined to the visible region), a formula for the dispersion of C is given which is valid from Y 230 nip to Y 650 mu..

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