2026-09-20T01:32:37Zhttps://dspace.mit.edu/server/oai/requestoai:dspace.mit.edu:1721.1/327922022-01-13T07:54:36Zcom_1721.1_7582com_1721.1_7581col_1721.1_131024
Todd Thorsen.
Tsikata, Sedina, 1981-
Massachusetts Institute of Technology. Dept. of Mechanical Engineering.
Massachusetts Institute of Technology. Department of Mechanical Engineering
2006-05-15T20:30:26Z
2006-05-15T20:30:26Z
2004
2004
http://hdl.handle.net/1721.1/32792
57583433
Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2004.
Includes bibliographical references (leaf 49).
In this study, Fresnel phase plates were tested as reconfigurable lenses. The lenses were constructed from a Fresnel pattern which was transferred to a silicon substrate via photolithography. A layer of PDMS was spin-coated on the substrate and cured to produce the lens. This lens was attached to a PDMS control layer which enabled specific regions of the lens to addressed, via the application of pressure. It was concluded that based on the limitations of the pressure-based Fresnel lenses, liquid-filled flow channels, while possessing slower response times, might be a more promising means of modulating phase.
by Sedina Tsikata.
S.B.
49 leaves
1914297 bytes
1914918 bytes
application/pdf
application/pdf
eng
Massachusetts Institute of Technology
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http://dspace.mit.edu/handle/1721.1/7582
Mechanical Engineering.
Fresnel phase plates as reconfigurable microfluidic lenses
Thesis
application/pdf
Publication
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unknown
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