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Solid state nano-based optical logic gate

  • US 9,128,306 B2
  • Filed: 09/10/2012
  • Issued: 09/08/2015
  • Est. Priority Date: 09/10/2012
  • Status: Expired due to Fees
First Claim
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1. A solid state nano-based optical logic gate that is free of a resonator structure, said logic gate comprising:

  • an active band gap medium;

    a plurality of nano particles, homogeneous atoms or artificial atoms embedded in said medium and wherein said nano particles, homogeneous atoms or artificial atoms have three active energy levels corresponding to two frequencies ω

    a and ω

    b and two dipole moments of values Pa and Pb;

    two coupled electromagnetic pulses propagating within said medium and interacting with said two dipole moments of said three energy level systems to thereby produce two output pulses;

    two photodetectors for sensing the two coupled output pulses and their relative speeds wherein sensors register 1 when two outputs arrive together and 0 when they are temporarily separated; and

    a third external electronic field applied to and configured to control relative velocities of the two output pulses to control said logic gate.

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