搜索结果: 1-15 共查到“物理学 tunable”相关记录33条 . 查询时间(0.151 秒)
Study of tunable resonances in laser beam divergence and beam deflection
Tunable radiofrequency resonances noise of lasers beam-width fluctuation beam-deviation fluctuation
2012/5/29
New, fundamental resonant properties of laser resonators are theoretically predicted and experimentally demonstrated. These resonances occur either in the time dependence of the beam width and that of...
25 kHz narrow spectral bandwidth of a wavelength tunable diode laser with a short waveguide-based external cavity
25 kHz narrow spectral bandwidth wavelength tunable diode laser short waveguide-based external cavity Optics
2012/4/19
We report on the spectral properties of a diode laser with a tunable external cavity in integrated optics. Even though the external cavity is short compared to other small-bandwidth external cavity la...
Highly tunable spin-dependent electron transport through carbon atomic chains connecting two zigzag graphene nanoribbons
Highly tunable spin-dependent electron transport carbon atomic chains zigzag graphene nanoribbons
2012/2/27
Motivated by recent experiments of successfully carving out stable carbon atomic chains from graphene [Meyer et al. Nature (London) 454, 319 (2008); Jin et al. Phys. Rev. Lett. 102, 205501 (2009)] we ...
Ultrathin optical switch based on a liquid crystal/silver nanoparticles mixture as a tunable indefinite medium
Ultrathin optical switch liquid crystal silver nanoparticles tunable indefinite medium
2011/8/2
Abstract: We predict that a liquid crystal/silver nanoparticles mixture can be designed so that, in a frequency range, its effective ordinary and extraordinary permittivities have real parts of differ...
Controlled Betatron X-ray radiation from tunable optically injected electrons
Betatron X-ray radiation tunable optically injected electrons
2011/9/5
The features of Betatron X-ray emission produced in a laser-plasma accelerator are closely linked to the properties of the relativistic electrons which are at the origin of the radiation. While in int...
Tunable Superfluidity and Quantum Magnetism with Ultracold Polar Molecules
Tunable Superfluidity Quantum Magnetism Ultracold Polar Molecules
2011/9/13
By selecting two dressed rotational states of ultracold polar molecules in an optical lattice, we obtain a highly tunable generalization of the t-J model, which we refer to as the t-J-V -W model. In a...
Wavelength tunable spectral compression in a dispersion-increasing fiber
Wavelength dispersion-increasing fiber
2011/8/26
Adiabatic soliton spectral compression in a dispersion-increasing fiber is demonstrated both numerically and experimentally.We show a positively-chirped pulse provides better spectral compression in a...
Molecule States in a Gate Tunable Graphene Double Quantum Dot
Molecule States Gate Tunable Graphene Double Quantum Dot
2010/11/25
We have measured a graphene double quantum dot device with multiple electrostatic gates that
are used to enhance control to investigate it. At low temperatures the transport measurements
reveal hone...
Tunable coupling in circuit quantum electrodynamics with a superconducting V-system
Tunable coupling circuit quantum electrodynamics superconducting V-system
2010/11/24
Recent progress in superconducting qubits has demonstrated the potential of these devices for
the future of quantum information processing.
Spin exchange interaction with tunable range between graphene quantum dots
Spin exchange interaction tunable graphene quantum dots
2010/11/22
We study the spin exchange between two electrons localized in separate quantum dots in graphene.The electronic states in the conduction band are coupled indirectly by tunneling to a common continuum o...
Tunable polarity of the Casimir force based on saturated ferrites
Tunable porosity Casimir force saturated ferrites
2014/5/28
We study the polarity of the Casimir force between two different parallel slabs separated by vacuum when the saturated ferrite materials under the influence of an external magnetic field are taken int...
Tunable band gaps in bilayer graphene-BN heterostructures
Tunable band gaps bilayer graphene-BN heterostructures
2010/11/19
We investigate band-gap tuning of bilayer graphene between hexagonal boron nitride sheets,
by external electric elds. Using density functional theory, we show that the gap is continuously tunable fr...
Tunable Vibrational Band Gaps in One-Dimensional Diatomic Granular Crystals with Three-Particle Unit Cells
Tunable Vibrational Band Gaps One-Dimensional Diatomic Granular Three-Particle Unit Cells
2010/11/18
We investigate the tunable vibration filtering properties of one-dimensional diatomic granular crystals composed of arrays of stainless steel spheres and cylinders interacting via Hertzian contact. Th...
Double quantum dot with tunable coupling in an enhancement-mode silicon metal-oxide semiconductor device with lateral geometry
Double quantum dot enhancement-mode silicon lateral geometry
2010/11/17
We present transport measurements of a tunable silicon metal-oxide-semiconductor double quantum dot device with lateral geometry. Experimentally extracted gate-to-dot capacitances show that the device...
Tunable Thermal Transport and Mechanical Properties in Strained Graphene Nanoribbons
Tunable Thermal Transport Strained Graphene Nanoribbons
2010/11/22
We study the effects of stress and strain on thermal transport and mechanical properties
of armchair and zigzag graphene nanoribbons (AGNR and ZGNRs) using non-equilibrium
molecular dynamics simulat...