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Electrically switchable polymer-dispersed liquid crystal materials including switchable optical couplers and reconfigurable optical interconnects

  • US 7,420,733 B1
  • Filed: 02/22/2007
  • Issued: 09/02/2008
  • Est. Priority Date: 07/29/1998
  • Status: Expired due to Fees
First Claim
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1. A system for forming a slanted grating comprising:

  • a sample comprising a polymerizable monomer, a liquid crystal, a chain-extending monomer, a co-initiator, and a photoinitiator; and

    a first incident beam and a second incident beam entering the sample forming the slanted grating therein,wherein an angle of incidence of the first incident beam with respect to a normal from the sample is different from an angle of incidence of the second incident beam;

    a transparent substrate placed in optical contact with the formed slanted grating; and

    an at least one additional slanted grating placed in optical contact with the transparent substrate.

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