A lossless negative dielectric constant from quantum dot exciton polaritons.
Prospects for a lossless negative dielectric constant material for optical devices are studied. Simulations show that with sufficient gain, a mixture of two semiconductor quantum dots (QDs) can produce an effective dielectric constant that is lossless and negative. This permits, in concept, arbitrarily small scaling of the optical mode volume, a major goal in the field of nanophotonics. The proposed implementation of a lossless negative dielectric constant material based on colloidal QDs opens a tractable path.
Fu
Y
Y
Department of Theoretical Chemistry, School of Biotechnology, Royal Institute of Technology, S-106 91 Stockholm, Sweden. fyg@theochem.kth.se
Thylén
L
L
Agren
H
H
D003198:Computer Simulation; D017097:Electric Impedance; D004583:Electrons; D008027:Light; D008962:Models, Theoretical; D055096:Optical Devices; D045663:Quantum Dots