Accession Number : ADA618181


Title :   Optophononics with Coupled Quantum Dots


Descriptive Note : Journal article


Corporate Author : RICE UNIV HOUSTON TX


Personal Author(s) : Kerfoot, Mark L ; Govorov, Alexander O ; Czarnocki, Cyprian ; Lu, Davis ; Gad, Youstina N ; Bracker, Allan S ; Gammon, Daniel ; Scheibner, Michael


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a618181.pdf


Report Date : 18 Feb 2014


Pagination or Media Count : 9


Abstract : Modern technology is founded on the intimate understanding of how to utilize and control electrons. Next to electrons, nature uses phonons, quantized vibrations of an elastic structure, to carry energy, momentum and even information through solids. Phonons permeate the crystalline components of modern technology, yet in terms of technological utilization phonons are far from being on par with electrons. Here we demonstrate how phonons can be employed to render a single quantum dot pair optically transparent. This phonon-induced transparency is realized via the formation of a molecular polaron, the result of a Fano-type quantum interference, which proves that we have accomplished making typically incoherent and dissipative phonons behave in a coherent and non-dissipative manner. We find the transparency to be widely tunable by electronic and optical means. Thereby we show amplification of weakest coupling channels. We further outline the molecular polaron s potential as a control element in photonic circuitry ar architecture.


Descriptors :   *COUPLING(INTERACTION) , *PHONONS , *QUANTUM DOTS , CAVITY RESONATORS , COMPUTERIZED SIMULATION , ELASTIC PROPERTIES , ELECTRIC FIELDS , ENERGY ABSORBERS , EXCITATION , FABRICATION , MOLECULAR BEAM EPITAXY , NANOMATERIALS , OPTICAL PROPERTIES , PHOTONICS , PHYSICAL SCIENCES , POLARONS , SPIN STATES


Subject Categories : Physical Chemistry
      Optics
      Quantum Theory and Relativity
      Solid State Physics


Distribution Statement : APPROVED FOR PUBLIC RELEASE