title: Modified Šolc notch filter for deep ultraviolet applications.
abstract: We present results of the design and testing of a modified optical Šolc notch filter for use in the deep ultraviolet (DUV, 190-300 nm) spectral range. The filter was designed to block a specific wavelength in this region. In addition, a sequence of blocked wavelengths occurs at wavelengths both shorter and longer than the specified wavelength. For Raman applications utilizing tunable lasers, the provision of multiple blocked wavelengths by a single filter may be especially useful. The filter design presented here produces extinction ratios >240 with transmission minima ~1 nm full width at half-maximum. Specific results are shown for the Raman spectra of Teflon excited at 248.4 nm.
authors.affiliation: Research Support Instruments, Lanham, Maryland, USA. nikitins@researchsupport.com
authors.forename: Sergei
authors.initials: S
authors.lastname: Nikitin
authors.forename: Charles
authors.initials: C
authors.lastname: Manka
authors.forename: Jacob
authors.initials: J
authors.lastname: Grun