The Experts below are selected from a list of 360 Experts worldwide ranked by ideXlab platform
Oliver Benson - One of the best experts on this subject based on the ideXlab platform.
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three dimensional quantum photonic elements based on single nitrogen vacancy centres in laser written microstructures
Scientific Reports, 2013Co-Authors: Andreas W. Schell, Johannes Kaschke, Rico Henze, Janik Wolters, Martin Wegener, Joachim E Fischer, Oliver BensonAbstract:To fully integrate quantum Optical Technology, active quantum systems must be combined with resonant microstructures and Optical interconnects harvesting and routing photons in three diemsnsions (3D) on one chip. We fabricate such combined structures for the first time by using two-photon laser lithography and a photoresist containing nanodiamonds including nitrogen vacancy-centers. As an example for possible functionality, single-photon generation, collection, and transport is successfully accomplished. The single photons are efficiently collected via resonators and routed in 3D through waveguides, all on one Optical chip. Our one-step fabrication scheme is easy to implement, scalable and flexible. Thus, other complex assemblies of 3D quantum Optical structures are feasible as well.
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measurement of the ultrafast spectral diffusion of the Optical transition of nitrogen vacancy centers in nano size diamond using correlation interferometry
Physical Review Letters, 2013Co-Authors: Janik Wolters, Andreas W. Schell, Nikola Sadzak, Tim Schroder, Oliver BensonAbstract:Spectral diffusion is the phenomenon of random jumps in the emission wavelength of narrow lines. This phenomenon is a major hurdle for applications of solid state quantum emitters like quantum dots, molecules, or diamond defect centers in an integrated quantum Optical Technology. Here, we provide further insight into the underlying processes of spectral diffusion of the zero-phonon line of single nitrogen vacancy centers in nano-size diamond by using a novel method based on photon correlation interferometry. The method works although the spectral diffusion rate is several orders of magnitude higher than the photon detection rate and thereby improves the time resolution of previous experiments with nano-size diamond by 6 orders of magnitude. We study the dependency of the spectral diffusion rate on the excitation power, temperature, and excitation wavelength under off-resonant excitation. Our results bring insight into the mechanism of spectral diffusion and suggest a strategy to increase the number of spectrally indistinguishable photons emitted by diamond nanocrystals.
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Three-dimensional quantum photonic elements based on single nitrogen vacancy-centres in laser-written microstructures
Scientific Reports, 2013Co-Authors: Andreas W. Schell, Johannes Kaschke, Rico Henze, Janik Wolters, Joachim Fischer, Martin Wegener, Oliver BensonAbstract:A fully integrated quantum Optical Technology requires active quantum systems incorporated into resonant Optical microstructures and inter-connected in three dimensions via photonic wires. Nitrogen vacancy-centres (NV-centres) in diamond which are excellent photostable room temperature single-photon emitters are ideal candidates for that purpose. Extensive research efforts to couple NV-centres to photonic structures such as Optical microresonators, microcavities, and waveguides have been pursued. Strategies for integration range from top-down fabrication via etching of diamond membranes to sophisticated bottom-up assembly of hybrid structures using diamond nanocrystals where the latter approach allows for deterministic coupling. Recently, another approach based on the incorporation of nanodiamonds in soft glass Optical fibres via a melting process has been introduced. Here, we utilize two-photon direct laser writing (DLW) to fabricate fully three-dimensional (3D) structures from a photoresist mixed with a solution of nanodiamonds containing NV-centres. For the first time, this approach facilitates building integrated 3D quantum photonic elements of nearly arbitrary shapes.
Andreas W. Schell - One of the best experts on this subject based on the ideXlab platform.
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three dimensional quantum photonic elements based on single nitrogen vacancy centres in laser written microstructures
Scientific Reports, 2013Co-Authors: Andreas W. Schell, Johannes Kaschke, Rico Henze, Janik Wolters, Martin Wegener, Joachim E Fischer, Oliver BensonAbstract:To fully integrate quantum Optical Technology, active quantum systems must be combined with resonant microstructures and Optical interconnects harvesting and routing photons in three diemsnsions (3D) on one chip. We fabricate such combined structures for the first time by using two-photon laser lithography and a photoresist containing nanodiamonds including nitrogen vacancy-centers. As an example for possible functionality, single-photon generation, collection, and transport is successfully accomplished. The single photons are efficiently collected via resonators and routed in 3D through waveguides, all on one Optical chip. Our one-step fabrication scheme is easy to implement, scalable and flexible. Thus, other complex assemblies of 3D quantum Optical structures are feasible as well.
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measurement of the ultrafast spectral diffusion of the Optical transition of nitrogen vacancy centers in nano size diamond using correlation interferometry
Physical Review Letters, 2013Co-Authors: Janik Wolters, Andreas W. Schell, Nikola Sadzak, Tim Schroder, Oliver BensonAbstract:Spectral diffusion is the phenomenon of random jumps in the emission wavelength of narrow lines. This phenomenon is a major hurdle for applications of solid state quantum emitters like quantum dots, molecules, or diamond defect centers in an integrated quantum Optical Technology. Here, we provide further insight into the underlying processes of spectral diffusion of the zero-phonon line of single nitrogen vacancy centers in nano-size diamond by using a novel method based on photon correlation interferometry. The method works although the spectral diffusion rate is several orders of magnitude higher than the photon detection rate and thereby improves the time resolution of previous experiments with nano-size diamond by 6 orders of magnitude. We study the dependency of the spectral diffusion rate on the excitation power, temperature, and excitation wavelength under off-resonant excitation. Our results bring insight into the mechanism of spectral diffusion and suggest a strategy to increase the number of spectrally indistinguishable photons emitted by diamond nanocrystals.
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Three-dimensional quantum photonic elements based on single nitrogen vacancy-centres in laser-written microstructures
Scientific Reports, 2013Co-Authors: Andreas W. Schell, Johannes Kaschke, Rico Henze, Janik Wolters, Joachim Fischer, Martin Wegener, Oliver BensonAbstract:A fully integrated quantum Optical Technology requires active quantum systems incorporated into resonant Optical microstructures and inter-connected in three dimensions via photonic wires. Nitrogen vacancy-centres (NV-centres) in diamond which are excellent photostable room temperature single-photon emitters are ideal candidates for that purpose. Extensive research efforts to couple NV-centres to photonic structures such as Optical microresonators, microcavities, and waveguides have been pursued. Strategies for integration range from top-down fabrication via etching of diamond membranes to sophisticated bottom-up assembly of hybrid structures using diamond nanocrystals where the latter approach allows for deterministic coupling. Recently, another approach based on the incorporation of nanodiamonds in soft glass Optical fibres via a melting process has been introduced. Here, we utilize two-photon direct laser writing (DLW) to fabricate fully three-dimensional (3D) structures from a photoresist mixed with a solution of nanodiamonds containing NV-centres. For the first time, this approach facilitates building integrated 3D quantum photonic elements of nearly arbitrary shapes.
Janik Wolters - One of the best experts on this subject based on the ideXlab platform.
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three dimensional quantum photonic elements based on single nitrogen vacancy centres in laser written microstructures
Scientific Reports, 2013Co-Authors: Andreas W. Schell, Johannes Kaschke, Rico Henze, Janik Wolters, Martin Wegener, Joachim E Fischer, Oliver BensonAbstract:To fully integrate quantum Optical Technology, active quantum systems must be combined with resonant microstructures and Optical interconnects harvesting and routing photons in three diemsnsions (3D) on one chip. We fabricate such combined structures for the first time by using two-photon laser lithography and a photoresist containing nanodiamonds including nitrogen vacancy-centers. As an example for possible functionality, single-photon generation, collection, and transport is successfully accomplished. The single photons are efficiently collected via resonators and routed in 3D through waveguides, all on one Optical chip. Our one-step fabrication scheme is easy to implement, scalable and flexible. Thus, other complex assemblies of 3D quantum Optical structures are feasible as well.
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measurement of the ultrafast spectral diffusion of the Optical transition of nitrogen vacancy centers in nano size diamond using correlation interferometry
Physical Review Letters, 2013Co-Authors: Janik Wolters, Andreas W. Schell, Nikola Sadzak, Tim Schroder, Oliver BensonAbstract:Spectral diffusion is the phenomenon of random jumps in the emission wavelength of narrow lines. This phenomenon is a major hurdle for applications of solid state quantum emitters like quantum dots, molecules, or diamond defect centers in an integrated quantum Optical Technology. Here, we provide further insight into the underlying processes of spectral diffusion of the zero-phonon line of single nitrogen vacancy centers in nano-size diamond by using a novel method based on photon correlation interferometry. The method works although the spectral diffusion rate is several orders of magnitude higher than the photon detection rate and thereby improves the time resolution of previous experiments with nano-size diamond by 6 orders of magnitude. We study the dependency of the spectral diffusion rate on the excitation power, temperature, and excitation wavelength under off-resonant excitation. Our results bring insight into the mechanism of spectral diffusion and suggest a strategy to increase the number of spectrally indistinguishable photons emitted by diamond nanocrystals.
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Three-dimensional quantum photonic elements based on single nitrogen vacancy-centres in laser-written microstructures
Scientific Reports, 2013Co-Authors: Andreas W. Schell, Johannes Kaschke, Rico Henze, Janik Wolters, Joachim Fischer, Martin Wegener, Oliver BensonAbstract:A fully integrated quantum Optical Technology requires active quantum systems incorporated into resonant Optical microstructures and inter-connected in three dimensions via photonic wires. Nitrogen vacancy-centres (NV-centres) in diamond which are excellent photostable room temperature single-photon emitters are ideal candidates for that purpose. Extensive research efforts to couple NV-centres to photonic structures such as Optical microresonators, microcavities, and waveguides have been pursued. Strategies for integration range from top-down fabrication via etching of diamond membranes to sophisticated bottom-up assembly of hybrid structures using diamond nanocrystals where the latter approach allows for deterministic coupling. Recently, another approach based on the incorporation of nanodiamonds in soft glass Optical fibres via a melting process has been introduced. Here, we utilize two-photon direct laser writing (DLW) to fabricate fully three-dimensional (3D) structures from a photoresist mixed with a solution of nanodiamonds containing NV-centres. For the first time, this approach facilitates building integrated 3D quantum photonic elements of nearly arbitrary shapes.
Martin Wegener - One of the best experts on this subject based on the ideXlab platform.
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three dimensional quantum photonic elements based on single nitrogen vacancy centres in laser written microstructures
Scientific Reports, 2013Co-Authors: Andreas W. Schell, Johannes Kaschke, Rico Henze, Janik Wolters, Martin Wegener, Joachim E Fischer, Oliver BensonAbstract:To fully integrate quantum Optical Technology, active quantum systems must be combined with resonant microstructures and Optical interconnects harvesting and routing photons in three diemsnsions (3D) on one chip. We fabricate such combined structures for the first time by using two-photon laser lithography and a photoresist containing nanodiamonds including nitrogen vacancy-centers. As an example for possible functionality, single-photon generation, collection, and transport is successfully accomplished. The single photons are efficiently collected via resonators and routed in 3D through waveguides, all on one Optical chip. Our one-step fabrication scheme is easy to implement, scalable and flexible. Thus, other complex assemblies of 3D quantum Optical structures are feasible as well.
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Three-dimensional quantum photonic elements based on single nitrogen vacancy-centres in laser-written microstructures
Scientific Reports, 2013Co-Authors: Andreas W. Schell, Johannes Kaschke, Rico Henze, Janik Wolters, Joachim Fischer, Martin Wegener, Oliver BensonAbstract:A fully integrated quantum Optical Technology requires active quantum systems incorporated into resonant Optical microstructures and inter-connected in three dimensions via photonic wires. Nitrogen vacancy-centres (NV-centres) in diamond which are excellent photostable room temperature single-photon emitters are ideal candidates for that purpose. Extensive research efforts to couple NV-centres to photonic structures such as Optical microresonators, microcavities, and waveguides have been pursued. Strategies for integration range from top-down fabrication via etching of diamond membranes to sophisticated bottom-up assembly of hybrid structures using diamond nanocrystals where the latter approach allows for deterministic coupling. Recently, another approach based on the incorporation of nanodiamonds in soft glass Optical fibres via a melting process has been introduced. Here, we utilize two-photon direct laser writing (DLW) to fabricate fully three-dimensional (3D) structures from a photoresist mixed with a solution of nanodiamonds containing NV-centres. For the first time, this approach facilitates building integrated 3D quantum photonic elements of nearly arbitrary shapes.
Johannes Kaschke - One of the best experts on this subject based on the ideXlab platform.
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three dimensional quantum photonic elements based on single nitrogen vacancy centres in laser written microstructures
Scientific Reports, 2013Co-Authors: Andreas W. Schell, Johannes Kaschke, Rico Henze, Janik Wolters, Martin Wegener, Joachim E Fischer, Oliver BensonAbstract:To fully integrate quantum Optical Technology, active quantum systems must be combined with resonant microstructures and Optical interconnects harvesting and routing photons in three diemsnsions (3D) on one chip. We fabricate such combined structures for the first time by using two-photon laser lithography and a photoresist containing nanodiamonds including nitrogen vacancy-centers. As an example for possible functionality, single-photon generation, collection, and transport is successfully accomplished. The single photons are efficiently collected via resonators and routed in 3D through waveguides, all on one Optical chip. Our one-step fabrication scheme is easy to implement, scalable and flexible. Thus, other complex assemblies of 3D quantum Optical structures are feasible as well.
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Three-dimensional quantum photonic elements based on single nitrogen vacancy-centres in laser-written microstructures
Scientific Reports, 2013Co-Authors: Andreas W. Schell, Johannes Kaschke, Rico Henze, Janik Wolters, Joachim Fischer, Martin Wegener, Oliver BensonAbstract:A fully integrated quantum Optical Technology requires active quantum systems incorporated into resonant Optical microstructures and inter-connected in three dimensions via photonic wires. Nitrogen vacancy-centres (NV-centres) in diamond which are excellent photostable room temperature single-photon emitters are ideal candidates for that purpose. Extensive research efforts to couple NV-centres to photonic structures such as Optical microresonators, microcavities, and waveguides have been pursued. Strategies for integration range from top-down fabrication via etching of diamond membranes to sophisticated bottom-up assembly of hybrid structures using diamond nanocrystals where the latter approach allows for deterministic coupling. Recently, another approach based on the incorporation of nanodiamonds in soft glass Optical fibres via a melting process has been introduced. Here, we utilize two-photon direct laser writing (DLW) to fabricate fully three-dimensional (3D) structures from a photoresist mixed with a solution of nanodiamonds containing NV-centres. For the first time, this approach facilitates building integrated 3D quantum photonic elements of nearly arbitrary shapes.