In slumping of glass sheets there needs to be a separation layer between glass and mandrel to keep them from fusing together. Inhomogeneities in that layer and dust trapped between glass and mandrel lead to mid-spatial frequency ripples in the shape of the glass. In this project we are avoiding this problem by using a porous air bearing as the mandrel and floating the glass sheet without any hard contact during the slumping process. See here<\/a> for background.<\/p>\n\n\n\n etc.<\/p>\n","protected":false},"excerpt":{"rendered":" Contact-free thermal air bearing slumping In slumping of glass sheets there needs to be a separation layer between glass and mandrel to keep them from fusing together. Inhomogeneities in that layer and dust trapped between glass and mandrel lead to mid-spatial frequency ripples in the shape of the glass. In\u2026 Continue reading<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":8,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"ngg_post_thumbnail":0},"_links":{"self":[{"href":"http:\/\/snl.mit.edu\/index.php?rest_route=\/wp\/v2\/pages\/222"}],"collection":[{"href":"http:\/\/snl.mit.edu\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"http:\/\/snl.mit.edu\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"http:\/\/snl.mit.edu\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/snl.mit.edu\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=222"}],"version-history":[{"count":7,"href":"http:\/\/snl.mit.edu\/index.php?rest_route=\/wp\/v2\/pages\/222\/revisions"}],"predecessor-version":[{"id":1385,"href":"http:\/\/snl.mit.edu\/index.php?rest_route=\/wp\/v2\/pages\/222\/revisions\/1385"}],"up":[{"embeddable":true,"href":"http:\/\/snl.mit.edu\/index.php?rest_route=\/wp\/v2\/pages\/8"}],"wp:attachment":[{"href":"http:\/\/snl.mit.edu\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=222"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}Microcombs<\/a><\/h3>\n\n\n\n
Nanometrology<\/a><\/h3>\n\n\n\n
UV filter gratings<\/a><\/h3>\n\n\n\n
Chandra gratings<\/a><\/h3>\n\n\n\n
Interference Lithography<\/h3>\n\n\n\n