The Experts below are selected from a list of 7050 Experts worldwide ranked by ideXlab platform
Stevan Horning - One of the best experts on this subject based on the ideXlab platform.
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Performance evaluation of a hybrid linear ion trap/orbitrap mass spectrometer.
Analytical Chemistry, 2006Co-Authors: Alexander Makarov, Eduard Denisov, Alexander Kholomeev, Wilko Balschun, Oliver Lange, Kerstin Strupat, Stevan HorningAbstract:Design and performance of a novel hybrid mass spectrometer is described. It couples a linear ion trap mass spectrometer to an orbitrap mass analyzer via an rf-only trapping quadrupole with a Curved Axis. The latter injects pulsed ion beams into a rapidly changing electric field in the orbitrap wherein they are trapped at high kinetic energies around an inner electrode. Image current detection is subsequently performed after a stable electrostatic field is achieved. Fourier transformation of the acquired transient allows wide mass range detection with high resolving power, mass accuracy, and dynamic range. The entire instrument operates in LC/MS mode (1 spectrum/s) with nominal mass resolving power of 60 000 and uses automatic gain control to provide high-accuracy mass measurements, within 2 ppm using internal standards and within 5 ppm with external calibration. The maximum resolving power exceeds 100 000 (fwhm). Rapid, automated data-dependent capabilities enable real-time acquisition of up to three high...
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performance evaluation of a hybrid linear ion trap orbitrap mass spectrometer
Analytical Chemistry, 2006Co-Authors: Alexander Makarov, Eduard Denisov, Alexander Kholomeev, Wilko Balschun, Oliver Lange, Kerstin Strupat, Stevan HorningAbstract:Design and performance of a novel hybrid mass spectrometer is described. It couples a linear ion trap mass spectrometer to an orbitrap mass analyzer via an rf-only trapping quadrupole with a Curved Axis. The latter injects pulsed ion beams into a rapidly changing electric field in the orbitrap wherein they are trapped at high kinetic energies around an inner electrode. Image current detection is subsequently performed after a stable electrostatic field is achieved. Fourier transformation of the acquired transient allows wide mass range detection with high resolving power, mass accuracy, and dynamic range. The entire instrument operates in LC/MS mode (1 spectrum/s) with nominal mass resolving power of 60 000 and uses automatic gain control to provide high-accuracy mass measurements, within 2 ppm using internal standards and within 5 ppm with external calibration. The maximum resolving power exceeds 100 000 (fwhm). Rapid, automated data-dependent capabilities enable real-time acquisition of up to three high...
Stefano Longhi - One of the best experts on this subject based on the ideXlab platform.
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Tunneling control of strongly correlated particles on a lattice: a photonic realization
Optics Letters, 2011Co-Authors: Stefano Longhi, Giuseppe Della ValleAbstract:We propose a photonic realization of tunneling control for two strongly correlated particles moving on a one-dimensional lattice, based on light transport in a square waveguide lattice with a periodically Curved Axis. We show the photonic analogue of dynamic localization of correlated particles and suggest the possibility to coherently suppress particle interaction.
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Subwavelength diffraction control and self-imaging in Curved plasmonic waveguide arrays
Optics Letters, 2010Co-Authors: G. Della Valle, Stefano LonghiAbstract:We study subwavelength light propagation in arrays of coupled metal-dielectric waveguides with a periodically Curved Axis and show analytically and numerically that subwavelength diffraction management, including self-imaging effects, can be achieved by a suitable engineering of the bending geometry.
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Experimental observation of coherent destruction of tunnelling in a driven double-well potential
2007 European Conference on Lasers and Electro-Optics and the International Quantum Electronics Conference, 2007Co-Authors: G. Delia Valle, Stefano Longhi, Marco Ornigotti, Paolo Laporta, Elena Cianci, Vittorio FogliettiAbstract:In this contribution we report on a direct visualization of CDT using an optical realization of the quantum-mechanical driven double-well Hamiltonian based on two tunneling-coupled waveguides with a sinusoidally-Curved Axis. Our experimental implementation makes it possible for the first time to directly trace the wave function evolution in the driven double-well potential by exploiting the fluorescence pattern observed in an active erbium-ytterbium:glass waveguide.
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Optical realization of multilevel adiabatic population transfer in Curved waveguide arrays
Physics Letters A, 2006Co-Authors: Stefano LonghiAbstract:Adiabatic transfer of light in tunneling-coupled waveguide arrays made of an odd number of waveguides with Curved Axis is proposed to mimic multilevel adiabatic population transfer of atoms or molecules driven by a counterintuitive pulse sequence.
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Semiclassical motion of a multiband Bloch particle in a time-dependent field: Optical visualization
Physical Review B, 2006Co-Authors: Stefano Longhi, Paolo Laporta, Elena Cianci, Mirko Lobino, Marco Marangoni, Roberta Ramponi, Vittorio FogliettiAbstract:An optical visualization of the semiclassical dynamics of a multiband Bloch particle subjected to an external time-dependent force is experimentally reported using an array of tunneling-coupled lithium-niobate optical waveguides with a Curved Axis. It is shown that a Gaussian beam injected into the array breaks into wave packets belonging to different bands of the array which propagate as semiclassical Bloch particles in a timedependent force simulated by the waveguide Axis curvature. According to the semiclassical analysis and to numerical simulations of the scalar beam propagation equation, the paths followed by the wave packets is proven to depend on the initial momentum, which is controlled by varying the incidence angle of the Gaussian beam. In particular, we study in detail, both theoretically and experimentally, the wave packet refocusing dynamics which occurs in the presence of a semicycle sinusoidal force and reveal its deep difference with respect to Bloch oscillations in a dc field.
Alexander Makarov - One of the best experts on this subject based on the ideXlab platform.
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Performance evaluation of a hybrid linear ion trap/orbitrap mass spectrometer.
Analytical Chemistry, 2006Co-Authors: Alexander Makarov, Eduard Denisov, Alexander Kholomeev, Wilko Balschun, Oliver Lange, Kerstin Strupat, Stevan HorningAbstract:Design and performance of a novel hybrid mass spectrometer is described. It couples a linear ion trap mass spectrometer to an orbitrap mass analyzer via an rf-only trapping quadrupole with a Curved Axis. The latter injects pulsed ion beams into a rapidly changing electric field in the orbitrap wherein they are trapped at high kinetic energies around an inner electrode. Image current detection is subsequently performed after a stable electrostatic field is achieved. Fourier transformation of the acquired transient allows wide mass range detection with high resolving power, mass accuracy, and dynamic range. The entire instrument operates in LC/MS mode (1 spectrum/s) with nominal mass resolving power of 60 000 and uses automatic gain control to provide high-accuracy mass measurements, within 2 ppm using internal standards and within 5 ppm with external calibration. The maximum resolving power exceeds 100 000 (fwhm). Rapid, automated data-dependent capabilities enable real-time acquisition of up to three high...
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performance evaluation of a hybrid linear ion trap orbitrap mass spectrometer
Analytical Chemistry, 2006Co-Authors: Alexander Makarov, Eduard Denisov, Alexander Kholomeev, Wilko Balschun, Oliver Lange, Kerstin Strupat, Stevan HorningAbstract:Design and performance of a novel hybrid mass spectrometer is described. It couples a linear ion trap mass spectrometer to an orbitrap mass analyzer via an rf-only trapping quadrupole with a Curved Axis. The latter injects pulsed ion beams into a rapidly changing electric field in the orbitrap wherein they are trapped at high kinetic energies around an inner electrode. Image current detection is subsequently performed after a stable electrostatic field is achieved. Fourier transformation of the acquired transient allows wide mass range detection with high resolving power, mass accuracy, and dynamic range. The entire instrument operates in LC/MS mode (1 spectrum/s) with nominal mass resolving power of 60 000 and uses automatic gain control to provide high-accuracy mass measurements, within 2 ppm using internal standards and within 5 ppm with external calibration. The maximum resolving power exceeds 100 000 (fwhm). Rapid, automated data-dependent capabilities enable real-time acquisition of up to three high...
Eduard Denisov - One of the best experts on this subject based on the ideXlab platform.
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Performance evaluation of a hybrid linear ion trap/orbitrap mass spectrometer.
Analytical Chemistry, 2006Co-Authors: Alexander Makarov, Eduard Denisov, Alexander Kholomeev, Wilko Balschun, Oliver Lange, Kerstin Strupat, Stevan HorningAbstract:Design and performance of a novel hybrid mass spectrometer is described. It couples a linear ion trap mass spectrometer to an orbitrap mass analyzer via an rf-only trapping quadrupole with a Curved Axis. The latter injects pulsed ion beams into a rapidly changing electric field in the orbitrap wherein they are trapped at high kinetic energies around an inner electrode. Image current detection is subsequently performed after a stable electrostatic field is achieved. Fourier transformation of the acquired transient allows wide mass range detection with high resolving power, mass accuracy, and dynamic range. The entire instrument operates in LC/MS mode (1 spectrum/s) with nominal mass resolving power of 60 000 and uses automatic gain control to provide high-accuracy mass measurements, within 2 ppm using internal standards and within 5 ppm with external calibration. The maximum resolving power exceeds 100 000 (fwhm). Rapid, automated data-dependent capabilities enable real-time acquisition of up to three high...
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performance evaluation of a hybrid linear ion trap orbitrap mass spectrometer
Analytical Chemistry, 2006Co-Authors: Alexander Makarov, Eduard Denisov, Alexander Kholomeev, Wilko Balschun, Oliver Lange, Kerstin Strupat, Stevan HorningAbstract:Design and performance of a novel hybrid mass spectrometer is described. It couples a linear ion trap mass spectrometer to an orbitrap mass analyzer via an rf-only trapping quadrupole with a Curved Axis. The latter injects pulsed ion beams into a rapidly changing electric field in the orbitrap wherein they are trapped at high kinetic energies around an inner electrode. Image current detection is subsequently performed after a stable electrostatic field is achieved. Fourier transformation of the acquired transient allows wide mass range detection with high resolving power, mass accuracy, and dynamic range. The entire instrument operates in LC/MS mode (1 spectrum/s) with nominal mass resolving power of 60 000 and uses automatic gain control to provide high-accuracy mass measurements, within 2 ppm using internal standards and within 5 ppm with external calibration. The maximum resolving power exceeds 100 000 (fwhm). Rapid, automated data-dependent capabilities enable real-time acquisition of up to three high...
Alexander Kholomeev - One of the best experts on this subject based on the ideXlab platform.
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Performance evaluation of a hybrid linear ion trap/orbitrap mass spectrometer.
Analytical Chemistry, 2006Co-Authors: Alexander Makarov, Eduard Denisov, Alexander Kholomeev, Wilko Balschun, Oliver Lange, Kerstin Strupat, Stevan HorningAbstract:Design and performance of a novel hybrid mass spectrometer is described. It couples a linear ion trap mass spectrometer to an orbitrap mass analyzer via an rf-only trapping quadrupole with a Curved Axis. The latter injects pulsed ion beams into a rapidly changing electric field in the orbitrap wherein they are trapped at high kinetic energies around an inner electrode. Image current detection is subsequently performed after a stable electrostatic field is achieved. Fourier transformation of the acquired transient allows wide mass range detection with high resolving power, mass accuracy, and dynamic range. The entire instrument operates in LC/MS mode (1 spectrum/s) with nominal mass resolving power of 60 000 and uses automatic gain control to provide high-accuracy mass measurements, within 2 ppm using internal standards and within 5 ppm with external calibration. The maximum resolving power exceeds 100 000 (fwhm). Rapid, automated data-dependent capabilities enable real-time acquisition of up to three high...
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performance evaluation of a hybrid linear ion trap orbitrap mass spectrometer
Analytical Chemistry, 2006Co-Authors: Alexander Makarov, Eduard Denisov, Alexander Kholomeev, Wilko Balschun, Oliver Lange, Kerstin Strupat, Stevan HorningAbstract:Design and performance of a novel hybrid mass spectrometer is described. It couples a linear ion trap mass spectrometer to an orbitrap mass analyzer via an rf-only trapping quadrupole with a Curved Axis. The latter injects pulsed ion beams into a rapidly changing electric field in the orbitrap wherein they are trapped at high kinetic energies around an inner electrode. Image current detection is subsequently performed after a stable electrostatic field is achieved. Fourier transformation of the acquired transient allows wide mass range detection with high resolving power, mass accuracy, and dynamic range. The entire instrument operates in LC/MS mode (1 spectrum/s) with nominal mass resolving power of 60 000 and uses automatic gain control to provide high-accuracy mass measurements, within 2 ppm using internal standards and within 5 ppm with external calibration. The maximum resolving power exceeds 100 000 (fwhm). Rapid, automated data-dependent capabilities enable real-time acquisition of up to three high...
