Method to create gradient index in a polymer

Title: Method to create gradient index in a polymer

Novel photo-writable and thermally switchable polymeric materials exhibit a refractive index change of .DELTA.n.gtoreq.1.0 when exposed to UV light or heat. For example, lithography can be used to convert a non-conjugated precursor polymer to a conjugated polymer having a higher index-of-refraction. Further, two-photon lithography can be used to pattern high-spatial frequency structures.

Inventors:: Dirk, Shawn M; Johnson, Ross Stefan; Boye, Robert; Descour, Michael R; Sweatt, William C; Wheeler, David R; Kaehr, Bryan James

Issue Date:: 2014-10-14

OSTI Identifier:: 1159969

Assignee:: Sandia Corporation (Albuquerque, NM) SNL-A

Patent Number(s):: 8,859,190

Application Number:: 14/018,058

Contract Number:: AC04-94AL85000

Resource Relation:: Patent File Date: 2013 Sep 04

Research Org:: Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

Sponsoring Org:: USDOE

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE

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Works referenced in this record:

Study of thermal conversion and patterning of a new soluble poly (p-phenylenevinylene) (PPV) precursor
journal, April 2007

Prelipceanu, Marius; Prelipceanu, Otilia-Sanda; Tudose, Ovidiu-Gelu
Materials Science in Semiconductor Processing, Vol. 10, Issue 2-3, p. 77-89
DOI: 10.1016/j.mssp.2007.05.004

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