2026-09-22T07:25:00Z https://www.ideals.illinois.edu/oai-pmh

oai:www.ideals.illinois.edu:2142/44174 2023-07-11 col_2142_5131 col_2142_8888 col_2142_14781 com_2142_5130 com_2142_8887 com_2142_234 com_2142_687 com_2142_397

Wasserman, Daniel M. Taylor, Andrew 2013-05-24T21:53:23Z 2013-05-24T21:53:23Z 2013-05 2013-05-24T21:53:23Z 2013-05 The mid-infrared wavelength range is important for both molecular sensing and thermal imaging. However, many optical devices that are common in the visible range are not as accessible in the mid-infrared. In this thesis, we look to partially address this problem by proposing two novel structures using subwavelength gratings. First, we look at a wave plate design that uses a physical path length difference to impose a phase shift between the components of incident light as an alternative to costly birefringent crystals. Then, we look at a crossed grating structure that serves as a narrowband filter due to its extraordinary transmission. We also propose a way to make the filter structure actively tunable. Item withdrawn by Mark Zulauf (zulauf@illinois.edu) on 2013-04-11T14:50:14Z Item was in collections: University of Illinois Theses & Dissertations (ID: 1) No. of bitstreams: 1 Taylor_Andrew.pdf: 5880291 bytes, checksum: 6bfc8b66f531391be4f8c3519ebb3d94 (MD5) Made available in DSpace on 2013-05-24T21:53:23Z (GMT). No. of bitstreams: 2 Andrew_Taylor.pdf: 5880291 bytes, checksum: 6bfc8b66f531391be4f8c3519ebb3d94 (MD5) license.txt: 4063 bytes, checksum: dd1d65866ad933b86ce22a585d45cb38 (MD5) http://hdl.handle.net/2142/44174 en Copyright 2013 Andrew Taylor Mid-Infrared Wave Plate Birefringence Filter Subwavelength grating Plasmons A study of novel mid-infrared optical devices: Wave plates and tunable filters text 10KS1200MS Electrical & Computer Eng 1933 Electrical & Computer Engr 1200 University of Illinois at Urbana-Champaign Thesis M.S. MS:Electr & Computer Eng-UIUC