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Permanent URI for this collectionhttps://hdl.handle.net/20.500.14288/6

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Department: search.filters.department.Department of PhysicsSubject: search.filters.subject.Electrical and electronic

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    PublicationOpen Access
    Quantum state transfer among crystallographic groups of N-V centers in diamond
    (Society of Photo-optical Instrumentation Engineers (SPIE), 2011) Department of Physics; Müstecaplıoğlu, Özgür Esat; Faculty Member; Department of Physics; College of Sciences; 1674
    We investigate collections of Nitrogen-Vacancy (N-V) Centers in diamond crystals coupled to a circuit QED system of a coplanar waveguide (CPWG) resonator. Our analysis reveals that different symmetry axes oriented N-V centers in the diamond host can be grouped into bosonic modes of collective quasi-spin wave excitations so that the hybrid system can be described as an analog of an exciton-polariton type cavity QED model. We examine such model for quantum state transfer among distinct crystallographic groups of N-V centers in a single diamond as well as two spatially distant diamonds. Rabi oscillations, mode entanglement, possible use of N-V classes as spin ensemble qubits and an implementation of continuous-time quantum random walk are discussed.
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    PublicationOpen Access
    Near infrared elastic light scattering by a silicon microsphere
    (Society of Photo-optical Instrumentation Engineers (SPIE), 2013) Department of Physics; Serpengüzel, Ali; Gökay, Ulaş Sabahattin; Faculty Member; Department of Physics; College of Sciences; 27855; N/A
    We observed high quality elastic light scattering from a silicon microsphere in the standard telecommunication band. A tunable diode laser was used as the excitation source and a single mode silica optical fiber setup delivered the input laser light to the microsphere. The silicon microsphere was manipulated on the silica optical fiber half coupler (OFHC) to effectively couple the evanescent laser field to the microsphere thus exciting the whispering gallery modes (WGM's). We observed high quality factor WGM's which can lead to novel geometries and applications for silicon microsphere based optoelectronic devices, such as filters, modulators, and detectors.