US 12,405,421 B2
Refractive index contrast polymers and methods for producing and using the same
Dong-Chul “Jeffrey” Pyun, Tucson, AZ (US); Robert A. Norwood, Tucson, AZ (US); Julie Ilana Frish, Tucson, AZ (US); and Tristan Stephen Kleine, Tucson, AZ (US)
Assigned to Arizona Board of Regents on Behalf of the University of Arizona, Tucson, AZ (US)
Appl. No. 18/043,630
Filed by Arizona Board of Regents on Behalf of the University of Arizona, Tucson, AZ (US)
PCT Filed Aug. 31, 2021, PCT No. PCT/US2021/048536
§ 371(c)(1), (2) Date Mar. 1, 2023,
PCT Pub. No. WO2022/051303, PCT Pub. Date Mar. 10, 2022.
Claims priority of provisional application 63/073,232, filed on Sep. 1, 2020.
Prior Publication US 2023/0258864 A1, Aug. 17, 2023
Int. Cl. G02B 6/122 (2006.01); G02B 6/138 (2006.01); G03F 7/004 (2006.01); G03F 7/027 (2006.01)
CPC G02B 6/1221 (2013.01) [G02B 6/138 (2013.01); G03F 7/0046 (2013.01); G03F 7/027 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A polymeric composition comprising a body and a waveguide, wherein said waveguide has a different refractive index compared to said body, and wherein said polymeric composition is produced from a monomeric mixture comprising:
from about 10 mol % to about 90 mol % of a first monomer comprising fluorinated ethylenically unsaturated monomer; and
from about 90 mol % to about 10 mol % of a second monomer comprising non-fluorinated ethylenically unsaturated monomer, the non-fluorinated ethylenically unsaturated monomer comprising an acid labile protecting group,
and wherein a first polymer produced from said first monomer has a refractive index that is different from a second polymer produced from said second monomer, and wherein said waveguide comprises a portion of said body where at least a portion of said acid labile protecting group has been removed.