City Hall Wavy Grating Kiosk Refreshed

    Date Posted: 
    Tuesday, May 23, 2017

    Over 20 years ago, the Tucson City Council approved Professor Emeritus Stephen F. Jacobs' proposal to place a 50 foot by 14 foot wavy diffraction grating atop City Hall. The display was to commemorate Tucson being named Optics Valley, as well as to show both residents and visitors the beautiful colors that make up sunlight.

    At that time, a kiosk was placed outside the City Council chambers to identify the wavy grating and explain where to find the diffracted colors. Two decade's worth of desert climate and exposure had nearly disintegrated the kiosk posters, rendering them nearly useless. On May 13, 2017, Stephen was able to install new posters, which will continue to draw eyes to the splash of rainbow colors downtown.

    More information on Jacob's multiple wavy grating installations can be found on his website.

    Stephen F. Jacobs with the Tucson City Hall Wavy Diffraction Grating

    Professor Emeritus Stephen Jacobs installing the wavy grating atop Tucson City Hall in 1996.