Abstract
Surface-relief gratings with high spatial frequencies were first fabricated using a direct imprinting process with a glassy carbon mold at the softening temperature of phosphate glass. A grating with maximum height of and period was formed on the glass surface by the pressing at the softening temperature of glass under constant pressure of . Phase retardation of was observed between TE-polarized and TM-polarized light at wavelength.
© 2008 Optical Society of America
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